Blois 2019: 31st Rencontres de Blois on "Particle Physics and Cosmology"

Europe/Paris
Gaston d'Orléans ()

Gaston d'Orléans

Château de Blois, Blois, Loire Valley, France
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Description

This will be the 31st meeting in this series of annual international multidisciplinary meetings, created in 1989 by Jean Trân Than Vân and which has in the past covered many topics in physics, astronomy and biology. All sessions take place in the Château of Blois, a beautiful renaissance castle which has housed many French kings, and notably François 1st. The 31st Rencontres de Blois on "Particle Physics and Cosmology" (Blois2019) will emphasize the increasing interplay between high energy accelerator based physics and cosmology. The conference will consist of plenary sessions for invited in-depth oral presentations (review talks) and contributed papers, in the form of relatively short oral papers. We will aim to achieve a balance between review talks, provocative talks given by recognized specialists, and shorter contributions. Special emphasis is being placed on active participation by younger researchers and post-docs. Parallel sessions are foreseen, and are being organised as the need arises.

Support
• Sunday, 2 June
• 17:00 19:00
Registration Secretariat

Secretariat

• 19:00 20:00
Reception Chateau's Courtyard

Chateau's Courtyard

• 20:00 22:00
Dinner Dinning Room @ Chateau

Dinning Room @ Chateau

• Monday, 3 June
• 09:00 09:45
Opening Gaston d'Orléans

Gaston d'Orléans

Château de Blois, Blois, Loire Valley, France
Convener: Jean TRAN THANH VAN
• 09:45 10:15
Coffee Break Margueritte de Valois, Ground Floor

Margueritte de Valois, Ground Floor

• 10:15 12:30
Highlights Gaston d'Orléans

Gaston d'Orléans

Château de Blois, Blois, Loire Valley, France
Convener: Thomas Lohse (Humboldt-Universitaet zu Berlin (DE))
• 10:15
Perspectives in Cosmology 45m
Speaker: George Smoot (LBNL)
• 11:00
Status of Research on Gravitational Waves 45m
Speaker: Stanislav Babak (APC Paris)
• 11:45
Ten Years of LHC - Highlights, Challenges and Opportunities 45m
Speaker: Marumi Kado (Centre National de la Recherche Scientifique (FR))
• 12:30 14:00
Lunch Dinning Room @ Chateau

Dinning Room @ Chateau

• 14:00 15:00
The Higgs Boson Gaston d'Orléans

Gaston d'Orléans

Château de Blois, Blois, Loire Valley, France
Convener: Christophe Grojean (DESY (Hamburg) and Humboldt University (Berlin))
• 14:00
Higgs Couplings and Properties 30m
Speaker: Marco Delmastro (CNRS/IN2P3 LAPP)
• 14:30
Rare Higgs Decays and Production Modes 30m
Speaker: Lindsey Gray (Fermi National Accelerator Lab. (US))
• 15:00 16:00
The Higgs Boson Gaston d'Orléans

Gaston d'Orléans

Château de Blois, Blois, Loire Valley, France
Convener: Christophe Grojean (DESY (Hamburg) and Humboldt University (Berlin))
• 15:00
Progress on SM Higgs precision calculations 30m
Speaker: Robert Valentin Harlander (Rheinisch Westfaelische Tech. Hoch. (DE))
• 15:30
Higgs and Cosmology 30m
Speaker: Oleg Lebedev (University of Helsinki)
• 16:00 16:15
Conference Photograph Gaston d'Orléans

Gaston d'Orléans

Château de Blois, Blois, Loire Valley, France
• 16:15 16:45
Coffee Break Gaston d'Orléans

Gaston d'Orléans

Château de Blois, Blois, Loire Valley, France
• 16:45 17:45
Beyond the Standard Model / Dark Matter Gaston d'Orléans

Gaston d'Orléans

Château de Blois, Blois, Loire Valley, France
Convener: Rouven Essig
• 16:45
Recent Results and Prospects for Indirect Dark Matter Detection 30m
Speaker: Marco Cirelli (CNRS LPTHE Jussieu)
• 17:15
Cancelled - Sterile neutrino searches and scenarios as dark matter 30m
• 18:00 19:00
Visit of the Chateau
• 20:00 22:00
Dinner Dinning Room @ Chateau

Dinning Room @ Chateau

• Tuesday, 4 June
• 09:00 10:30
Beyond the Standard Model / Dark Matter Gaston d'Orléans

Gaston d'Orléans

Château de Blois, Blois, Loire Valley, France
Convener: Jim Olsen (Princeton University (US))
• 09:00
Highlights on SUSY and Exotic Searches 30m
Speaker: Monika Wielers (RAL (UK))
• 09:30
Long lived BSM 30m
Speaker: Marco Drewes (Universite Catholique de Louvain (UCL) (BE))
• 10:00
Searches in the Long-Lived Particle and Dark Sectors 30m
Speaker: Juliette Alimena (Ohio State University (US))
• 10:30 11:00
Coffee Break Margueritte de Valois Ground Floor

Margueritte de Valois Ground Floor

• 11:00 12:30
Beyond the Standard Model / Dark Matter Gaston d'Orléans

Gaston d'Orléans

Château de Blois, Blois, Loire Valley, France
Convener: Jodi Cooley (SMU)
• 11:00
Searches for Dark Matter at the LHC 30m
Speaker: Alex Tapper (Imperial College London)
• 11:30
Recent Results and Prospects for Direct Detection Dark Matter Experiments 30m
Speaker: Priscilla Cushman (University of Minnesota)
• 12:00
New Directions in Dark Matter 30m
Speaker: Rouven Essig
• 12:30 14:00
Lunch Dinning Room @ Chateau

Dinning Room @ Chateau

• 14:00 14:30
Beyond the Standard Model / Dark Matter Gaston d'Orléans

Gaston d'Orléans

Château de Blois, Blois, Loire Valley, France
Convener: Bolek Pietrzyk (Centre National de la Recherche Scientifique (FR))
• 14:00
Exploring BSM at low energy 30m
Speaker: Martin Gonzalez-Alonso (CERN)
• 14:30 16:00
Heavy Flavour Physics Gaston d'Orléans

Gaston d'Orléans

Château de Blois, Blois, Loire Valley, France
Convener: Bolek Pietrzyk (Centre National de la Recherche Scientifique (FR))
• 14:30
CP violation 30m
Speaker: Marco Gersabeck (Manchester)
• 15:00
Rare decays 30m
Speaker: Mitesh Patel (Imperial College)
• 15:30
Theoretical Point of View 30m
Speaker: Tobias Hurth (Mainz)
• 16:00 16:30
Coffee Break Gaston d'Orléans

Gaston d'Orléans

Château de Blois, Blois, Loire Valley, France
• 16:30 19:30
Parallel Session BSM+DM
Convener: Oleg Lebedev (University of Helsinki)
• 16:30
New Physics in EW phase transition 20m
Speaker: Iason Baldes (ULB)
• 16:50
Three-boson signals of a three-brane world 20m

Simple generalizations of well known BSM scenarios can lead to dramatic signals at colliders, providing interesting theoretical playgrounds and motivating new methods to isolate non-standard experimental signals. In this talk I will consider warped extra-dimensional models with multiple branes in the IR and discuss various possibilities and related collider signals. One generic feature of this scenario is the presence of three boson final state, with double resonant structure, and non-standard boosted fat jets in large parts of parameter space. These signals require dedicated strategies at LHC, with varying sophistication. I will present these methods, which are also relevant for many other BSM scenarios. This framework also motivates studying conformal dark sectors, with non-gravitational interactions to the SM. Motivating the minimal interaction to the conformal dark sector, I will discuss the collider and cosmological bounds on this scenario.

Speaker: Rashmish Mishra (SNS, Pisa)
• 17:10
Long Lived Particles 20m
Speaker: Jan Hajer (Université catholique de Louvain)
• 17:30
Searches with boosted objects in ATLAS and CMS 20m
Speaker: Alejandro Gomez Espinosa (ETH Zurich (CH))
• 17:50
Searches for new resonances in hadronic final states with the ATLAS detector 20m
Speaker: Nishu Nishu (Shanghai Jiao Tong University (CN))
• 18:10
Search for new physics in multilepton final states in CMS 20m
Speaker: Halil Saka (Rutgers State Univ. of New Jersey (US))
• 18:30
Searches for new resonances in final states comprising leptons using the ATLAS detector 20m
Speaker: Oleg Zenin (Institute for High Energy Physics of NRC Kurchatov Institute (R)
• 18:50
Selected highlights from dark matter searches with CMS 20m
Speaker: Sushil Chauhan (Panjab University (IN))
• 19:10
Dark matter and the 21cm global signal at cosmic dawn 20m
Speaker: Ely Kovetz (Ben Gurion U.)
• 16:30 19:50
Parallel Session Higgs+Top+EW
Convener: Pier Francesco Monni (CERN)
• 16:30
Inclusive multi-boson measurements in ATLAS and CMS 20m
Speaker: Tiesheng Dai (University of Michigan (US))
• 16:50
Vector-boson scattering results from ATLAS 20m
Speaker: Narei Lorenzo Martinez (Centre National de la Recherche Scientifique (FR))
• 17:10
Selected results on VBS and VBF processes from CMS 20m
Speaker: Meng Lu (Peking University (CN))
• 17:30
Bottom-quark mass effects in electroweak and Higgs processes 20m
Speaker: Davide Napoletano (Ipht, Saclay)
• 17:50
Recent results on W/Z/top physics in LHCb 20m
Speaker: Oscar Augusto De Aguiar Francisco (CERN)
• 18:10
Precision electroweak results from ATLAS 20m
Speaker: Elena Yatsenko (Shanghai Jiao Tong University (CN) & Tsung-Dao Lee Institute (CN))
• 18:30
Precision electroweak results from CMS 20m
Speaker: Carlos Francisco Erice Cid (Universidad de Oviedo (ES))
• 18:50
Theoretical uncertainties in the W-boson mass determination at hadron colliders 20m

The high-precision measurement of the W-boson mass (MW) offers the possibility of a stringent test of the Standard Model of the electroweak and strong interactions. The uncertainty of the current world average for MW is 0.2 per mille and the ATLAS and CMS collaborations at CERN are planning to measure MW reaching a final error of 15 MeV or eventually 10 MeV: such a precision requires a careful assessment of the theoretical systematics affecting the W-boson mass measurement at hadron colliders. The main sources of theoretical uncertainties are discussed focusing in particular on the electroweak and mixed QCD-electroweak effects.

Speaker: Mauro Chiesa (Julius-Maximilians-Universität Würzburg)
• 19:10
Recent results from V+jets measurements in ATLAS 20m
Speaker: Ewelina Maria Lobodzinska (Deutsches Elektronen-Synchrotron (DE))
• 19:30
Electroweak corrections in Higgs physics 20m
Speaker: Armin Schweitzer (ETH Zurich)
• 16:30 19:50
Parallel Session Neutrinos
Convener: Jacques Dumarchez (Univ. P. et Marie Curie (Paris VI) (FR))
• 16:30
KM3NeT-ORCA: Oscillation Research with Cosmics in the Abyss 20m

KM3NeT is a distributed research infrastructure in the Mediterranean Sea that will host a gigaton-scale neutrino telescope (ARCA) for high-energy neutrino astronomy, and a megaton-scale detector (ORCA) for neutrino oscillation studies with atmospheric neutrinos. ORCA is optimised for determining the neutrino mass ordering (NMO) by observing matter effects in atmospheric neutrino oscillations, providing a sensitivity to the NMO of approximately 3σ after 3 years of operation with the full detector. It will also measure the atmospheric mixing parameters Δm232 and θ23 using both the muon neutrino disappearance and tau neutrino appearance channels. Determining the tau neutrino appearance probability with unprecedented precision will provide for a powerful test of the unitarity of the 3-flavour mixing matrix. The observation of neutrino oscillations over a wide range of baselines and energies will provide broad sensitivity to new physics such as non-standard neutrino interactions (NSI) and sterile neutrinos.

Speaker: Luigi Antonio Fusco (APC)
• 16:50
Search for eV Sterile Neutrinos – The STEREO Experiment 20m

In recent years, major milestones in neutrino physics were accomplished at nuclear reactors: the smallest neutrino mixing angle $\theta_{13}$ was determined with high precision and the emitted anti-neutrino spectrum was measured at unprecedented resolution. However, two anomalies, the first one related to the absolute flux and the second one to the spectral shape, have yet to be solved. The flux anomaly is known as the Reactor Antineutrino Anomaly (RAA) and could be caused by the existence of a light sterile neutrino eigenstate participating in the neutrino oscillation phenomenon. The RAA is best explained by an oscillation with parameters $\sin^{2}(2 \theta_{ee}) = 0.14$ and $\Delta m_{41}^{2} = 2.4~\textrm{eV}^{2}$.

The STEREO experiment was built to probe this parameter region. It is one of the first running experiments built to search for eV sterile neutrinos and takes data since end of 2016 at ILL Grenoble (France). At a short baseline of 10 metres, it measures the anti-neutrino flux and spectrum emitted by a compact research reactor. The segmentation of the detector in six cells allows for independent measurements of the neutrino spectrum at multiple baselines. An active-sterile flavour oscillation could be unambiguously detected, as it distorts the spectral shape of each cell's measurement differently. In 2018, STEREO was able to exclude significant part of the parameter space with its first data set of 66 (138) days reactor-on (off) data.

In this contribution, an overview on the STEREO experiment will be given. Furthermore, updated results with the new increased dataset of 185 (233) days of reactor-on (off) will be presented.

Speaker: Stefan Schoppmann (Max-Planck-Institut für Kernphysik)
• 17:10
Testing New Physics Explanations of MiniBooNE Anomaly at Neutrino Scattering Experiments 20m
Speaker: Carlos Arguelles Delgado (MIT)
• 17:30
Search for neutrinoless double beta decay with GERDA 20m

The GERDA experiment searches for the neutrinoless double beta decay ($0\nu\beta\beta$) of $^{76}$Ge. It uses HPGe detectors enriched in the isotope $^{76}$Ge, which are directly immersed into liquid argon (LAr). In Phase II, the radio-pure cryogenic liquid acts not only as cooling medium for the detectors and passive shielding but also as active shielding. Due to the active veto system detecting LAr scintillation light, the superior energy resolution and an improved background recognition, already the initial release of Phase II showed a background rate in the energy region of interest (ROI), after pulse shape discrimination and liquid argon veto cuts, in the range of a few counts/(ROI$\cdot$ton$\cdot$yr). This made GERDA the first $0\nu\beta\beta$ experiment being background free up to its design exposure of 100 kg$\cdot$yr.

With the latest data release in mid 2018, comprising a total exposure of 82.4 kg$\cdot$yr, GERDA remained in the background free regime. It is the first experiment to surpass a median sensitivity on the half-life of $10^{26}$ yr for $0\nu\beta\beta$ decay. No signal has been observed and a lower limit of $0.9\cdot10^{26}$ yr (90 % C.L.) has been derived. Meanwhile the experiment has been upgraded by deploying also a new type of germanium detector and by improving the LAr instrumentation. In this talk we will present the basic concept of the GERDA design and the present physics results. Moreover, we will focus on the background contributions at Q$_{\beta\beta}$. Results on the performance of the upgraded experimental setup will be discussed.

Speaker: Ms Ann-Kathrin Schütz (University of Tübingen)
• 17:50
Results from the CUORE experiment 20m

ABSTRACT: The Cryogenic Underground Observatory for Rare Events (CUORE) is the first bolometric experiment searching for neutrinoless double beta decay (0νββ) that has been able to reach the one-ton scale. The detector consists of an array of 988 TeO2 crystals arranged in a compact cylindrical structure of 19 towers. The construction of the experiment was completed in August 2016 with the installation of all towers in the cryostat. Following a cooldown, diagnostic, and optimization campaign, routine data-taking began in spring 2017. In this talk, we present the 0νββ results of CUORE from examining a total TeO2 exposure of 86.3 kg∙yr, characterized by an average energy resolution of 7.7 keV FWHM and a background in the region of interest of 0.014 counts/(keV∙kg∙yr). In this physics run, CUORE placed the current best lower limit on the 130Te 0νββ half-life of > 1.3 × 10^25 yr (90% C.L.). We then discuss the additional improvements in the detector performance achieved in 2018, the latest evaluation of the CUORE background budget, and we finally present the most precise measurement of the 130Te 2νββ half-life to date.

Speaker: Guido Fantini (GSSI Gran Sasso)
• 18:10
Final results of the CUPID-0 Phase I experiment 20m

A convincing observation of neutrino-less double beta decay (0$\nu$DBD) relies on the possibility of operating high-energy resolution detectors in background-free conditions.
Scintillating cryogenic calorimeters are one of the most promising tools to fulfill the requirements for a next-generation experiment. Several steps have been taken to demonstrate the maturity of this technique, starting form the successful experience of CUPID-0.
The CUPID-0 experiment collected 10 kg*y of exposure, running 26 Zn$^{82}$Se crystals during two years of continuous detector operation. The complete rejection of the dominant alpha background was demonstrated, measuring the lowest counting rate in the region of interest for this technique. Furthermore, the most stringent limit on the Se-82 0$\nu$DBD was established.
In this contribution we present the final results of CUPID-0 Phase I, including a detailed model of the background and the measurement of the 2$\nu$DBD half-life.

Speaker: Luca Gironi
• 18:30
Earth tomography with neutrinos 20m
Speaker: Sergio Palomares Ruiz (IFIC Valencia)
• 18:50
Lithium molybdate scintillating bolometers for double beta decay 20m

The LUMINEU project has recently set up a technology for the development
of high-performance scintillating bolometers containing the nuclide
100Mo, in the framework of the R&D activities towards the proposed
tonne-scale neutrinoless double beta decay experiment CUPID. Using in
particular Li2100MoO4 detectors, high energy resolution (5-6 keV FWHM at
2615 keV), excellent alpha background rejection (>99.9%) and extreme
radiopurity (below 0.005 mBq/kg U/Th intrinsic activity) have been
demonstrated in multiple tests with remarkable reproducibility.
Moreover, with only 0.1 kg x y of 100Mo exposure, the measured
two-neutrino double beta decay half-life is one of the most precise
values ever reported. As a follow-up of this activity, a demonstrator
named CUPID-Mo is collecting data in the Modane underground laboratory
in France. CUPID-Mo consists of twenty 0.2-kg 100Mo-enriched Li2MoO4
scintillating bolometers (containing more than 2 kg of 100Mo) to be
operated for at least 0.5 yr, providing a sensitivity to 100Mo larger
than 10^24yr. CUPID-Mo is a very important demonstrator for the
implementation of CUPID, as the CUPID-Mo detectors follow closely the
configuration chosen for the baseline of CUPID.

Speakers: Mrs Claudia Nones (IRFU/DPhP), Mrs The CUPID-Mo collaboration
• 19:10
The NEXT experiment for neutrinoless double beta decay searches 20m
Speaker: Justo Martin-Albo (Harvard University)
• 19:30
Electromagnetic neutrinos: New constraints and new effects in oscillations 20m

Abstract:

We have continued discussions of neutrino electromagnetic properties [1,2] and have performed a detailed and accurate study [3] of the electromagnetic interactions of massive neutrinos in the theoretical formulation of low-energy elastic neutrino-electron scattering.
Using the derived new expression for a neutrino electromagnetic scattering cross section [3],
we obtained [4] a new bound on the neutrino charge radii from COHERENT elastic neutrino-nucleus scattering data. Worthy of note, our paper [4] has been included by the Editors Suggestion to the Phys.Rev.D “Highlights of 2018”.
A reasonable part of the proposed talk is dedicated to results of our recently performed detailed studies of new effects in neutrino spin, spin-flavour and flavor oscillations under the influence of the transversal matter currents [5] and a constant magnetic field [6]. These two effects can be summarized as follows:

1) it is shown [5] that neutrino spin and spin-flavor oscillations can be engendered by weak interactions of neutrinos with the medium in the case when there are the transversal matter currents (for the appearance of neutrino spin oscillations in this case there is no need either for a neutrino nonzero magnetic moment or for an external magnetic field); different possibilities for the resonance amplification of oscillations are discussed, the neutrino Standard Model and non-standard interactions are accounted for;

2) within a new treatment [6] of the neutrino flavor, spin and spin-flavour oscillations in the presence of a constant magnetic field, that is based on the use of the exact neutrino stationary states in the magnetic field, it is shown that there is an interplay of neutrino oscillations on different frequencies; in particular: a) the amplitude of the flavour oscillations νLe↔ νLμ at the vacuum frequency is modulated by the magnetic field frequency, and b) the neutrino spin oscillation probability (without change of the neutrino flavour) exhibits the dependence on the neutrino mass square difference Δm2 .

The discovered new phenomena in neutrino oscillations should be accounted for reinterpretation of results of already performed experiments on detection of astrophysical neutrino fluxes produced in astrophysical environments with strong magnetic fields and dense matter. These new neutrino oscillation phenomena are also of interest [7,8] in view of future experiments on observations of supernova neutrino fluxes with large liquid-scintillator detectors like JUNO, for instance.

References:

[1] C. Guinti and A. Studenikin,
“Neutrino electromagnetic interactions: A window to new physics”,
Rev. Mod. Phys. 87 (2015) 531-591.

[2] A.Studenikin,
“Neutrino electromagnetic interactions: A window to new physics - II”,
PoS EPS-HEP2017 (2017) 137.

[3] K. Kouzakov, A. Studenikin,
“Electromagnetic properties of massive neutrinos in low-energy
elastic neutrino-electron scattering”, Phys. Rev. D 95 (2017) 055013.

[4] M. Cadeddu, C. Giunti, K. Kouzakov, Y.F. Li, A. Studenikin, Y.Y. Zhang,
“Neutrino charge radii from COHERENT elastic neutrino-nucleus scattering”,
Phys. Rev. D 98 (2018) no.11, 113010.

[5] P. Pustoshny, A. Studenikin,
"Neutrino spin and spin-flavour oscillations in transversal
matter currents with standard and non-standard
interactions", Phys.Rev. D98 (2018) no.11, 113009.

[6] A. Popov, A. Studenikin, "Neutrino eigenstates and flavour, spin and spin-flavour oscillations in a constant magnetic field ", Eur.Phys.J. C79 (2019) no.2, 144.

[7] C. Giunti, K. Kouzakov, Y. F. Li, A. Lokhov, A. Studenikin, S. Zhou,
Electromagnetic neutrinos in laboratory experiments and astrophysics,
Annalen Phys. 528 (2016) 198.

[8] J.S. Lu, Y.-F. Li and S. Zhou,
Getting the most from the detection of Galactic supernova neutrinos in future large liquid-scintillator detectors, Phys. Rev. D 94 (2016) 023006.

Speaker: Студеникин Студеникин Иван Александрович (M.V. Lomonosov Moscow State University (RU))
• 16:30 19:30
Parallel Session QCD+HF
Convener: Mitesh Patel (Imperial College (GB))
• 16:30
Heavy Flavour Results from the Tevatron 20m
Speaker: Rick van Kooten (Indiana)
• 16:50
Heavy flavour production and properties in ATLAS and CMS 20m
Speaker: Soeren Andre Prell (Iowa State University (US))
• 17:10
Belle II status and early physics 20m
Speaker: Tagir Aushev (Moscow IPT)
• 17:30
Open Charm at BESIII 20m
Speaker: Evelina Mihova Gersabeck (Manchester)
• 17:50
Mixing and CP violation in beauty and charm at LHCb 20m
Speaker: Artur Ukleja (Warsaw)
• 18:10
Rare, radiative, and electroweak penguin decays of heavy flavour hadrons at LHCb 20m
Speaker: Eric Cogneras (Clermont-Ferrand)
• 18:30
Lepton Flavour Universality tests with heavy flavour decays at LHCb 20m
Speaker: Harry Cliff (Cambridge)
• 18:50
Physics beyond SM with Kaons from NA62 20m
Speaker: Michele Corvino (Napoli)
• 19:10
Latest results from NA48/2 20m
Speaker: Dmitry Madigozhin (Dubna)
• 20:20 22:20
Dinner Dinning Room @ Chateau

Dinning Room @ Chateau

• Wednesday, 5 June
• 08:00 12:00
Excursion to Chateau de Chenonceau and to Clo Lucé (Leonardo da Vinci)
• 12:30 14:00
Lunch Dinning Room @ Chateau

Dinning Room @ Chateau

• 14:00 16:00
Parallel Session Astro+Cosmo
Convener: Ed Copeland (Nottingham University)
• 14:00
An updated measurement of the Hubble constant from H0LiCOW 20m
Speaker: Cristian Rusu (National Astronomical Observatory of Japan)
• 14:20
South Pole Telescope Status and prospects 20m
Speaker: Christian Reichardt
• 14:40
BICEP/Keck 20m
Speaker: Clement Pryke (University of Minnesota)
• 15:00
The Simons Observatory: status and prospects 20m
Speaker: Federico Nati
• 15:20
BAO measurement based on Lya forests 20m

Just after inflation, due to the coupling between photons and baryons, sound waves were created and propagated in the primordial plasma until recombination. At that time, these so called Baryonic Acoustic Oscillations (BAO) left their imprint in the matter distribution. This feature is still measurable as a small excess (1%) in the matter 2-point correlation function.
This BAO peak can be measured both transversely and radially. The transverse measurement yields the ratio of the angular-diameter distance to the sound horizon scale at recombination (da(z)/rs), while the radial measurement gives access directly to the expansion rate through the quantity H(z)rs.
First detected in the Luminous red galaxy correlation function at redshifts between 0.16 and 0.47 (Einseinstein et al., 2005 and Cole et al., 2005), other matter tracers have since be used to access to other redshift ranges. The highest redshift measurement has been performed at z = 2.34, using the Lya forests seen in high redshift quasar spectra.
I will present the latest BAO measurement based on Lya forests at mean redshift 2.34 using the SDSS-IV – eBOSS data. This analysis yields 3.3 % and 4.4 % precision on the measurements of the H(z)rs and Da(z)/rs respectively.

Speaker: Victoria de Sainte Agathe
• 15:40
What will the largest neutrino telescopes tell us about solar flares? 20m
Speaker: Gwenhaël de Wasseige (APC, CNRS)
• 14:00 16:00
Parallel Session BSM+DM
Convener: Prof. Stephen Jacob Sekula (Southern Methodist University (US))
• 14:00
A 96 GeV Higgs Boson in the N2HDM 20m

We discuss a ∼ 3 σ signal (local) in the light Higgs-boson search in the diphoton decay mode at ∼ 96 GeV as reported by CMS, together with a ∼ 2 σ excess (local) in the b ̄b final state at LEP in the same mass range. We interpret this possible signal as a Higgs boson in the 2 Higgs Doublet Model with an additional real Higgs singlet (N2HDM). We find that the lightest Higgs boson of the N2HDM can perfectly fit both excesses simultaneously, while the second lightest state is in full agreement with the Higgs-boson measurements at 125 GeV, and the full Higgs-boson sector is in agreement with all Higgs exclusion bounds from LEP, the Tevatron and the LHC as well as other theoretical and experimental constraints. We show that only the N2HDM type II and IV can fit both the LEP excess and the CMS excess with a large ggF production component at ∼ 96 GeV. We derive bounds on the N2HDM Higgs sector from a fit to both excesses and describe how this signal can be further analyzed at the LHC and at future e+e− colliders, such as the ILC.

Speaker: Sven Heinemeyer (CSIC (Madrid, ES))
• 14:20
Searches for electroweak supersymmetry in ATLAS 20m
Speaker: Yohei Yamaguchi (Tokyo Institute of Technology (JP))
• 14:40
Search for scalar top and gluino in fully hadronic final state with CMS 20m
Speaker: Koushik Mandal (Eotvos Lorand University (HU))
• 15:00
General bounds on Conformal Dark Sectors 20m

I present the most general bounds one can make on the phenomenology of hidden sectors with conformal symmetry, which are weakly coupled to the SM. Without the need to specify their particle or symmetry content, we have derived a consistent description of final states in a generic CFT, and have applied it to current experimental runs. Our analysis covers a wide range of phenomena: we investigate collider searches (LEP, LHC run 2), a number of low-energy experiments, and effects on cosmology and astrophysical objects. The combined results form a guide to model building with conformal sectors.

Speaker: Kevin Max (SNS, Pisa)
• 15:20
Bound states in DM 20m
Speaker: Julia Harz (TUM, Munich and LPTHE, Paris)
• 15:40
Dark matter searches at Belle II 20m
Speaker: Sam Cunliffe (DESY)
• 14:00 16:00
Parallel Session Higgs+Top+EW
Convener: Marco Delmastro (CNRS/IN2P3 LAPP)
• 14:00
Higgs-boson transverse momentum 20m
Speaker: Chris Wever (Karlsruhe Institute of Technology)
• 14:20
Higgs-boson properties in CMS 20m
Speaker: Alessandro Calandri (Eidgenoessische Technische Hochschule Zuerich (CH))
• 14:40
Higgs-boson measurements in ttH production in ATLAS 20m
Speaker: Richard Polifka (Charles University (CZ))
• 15:00
Measurement of ttH production with H->bb in CMS 20m
Speaker: Michael Wassmer (KIT - Karlsruhe Institute of Technology (DE))
• 15:20
Di-Higgs searches at 13 TeV and prospects for HL-LHC in ATLAS 20m
Speaker: Nikolaos Rompotis (University of Liverpool (UK))
• 15:40
Searches for an extended Higgs sector in CMS 20m
Speaker: Silvia Taroni (University of Notre Dame (US))
• 14:00 16:00
Parallel Session QCD+HF
Convener: Marco Gersabeck (University of Manchester (GB))
• 14:00
XYZ particles at BESIII 20m
Speaker: Hao Cai (Wuhan)
• 14:20
Hadron spectroscopy at BESIII 20m
Speaker: Xiaoshuai Qin (Ruhr-Universitaet Bochum)
• 14:40
Hadron spectroscopy and exotic states at LHCb 20m
Speaker: Mikhail Mikhasenko (CERN)
• 15:00
QCD studies in ATLAS and CMS 20m
Speaker: Qun Wang (Peking University (CN))
• 15:20
Precision measurements of jet substructure and fragmentation in ATLAS 20m
Speaker: Jason Robert Veatch (Georg August Universitaet Goettingen (DE))
• 15:40
QCD highlights from ALICE and fixed-target opportunities 20m
Speaker: Cynthia Hadjidakis (Orsay IPN)
• 16:00 16:30
Coffee Break Marguerite de Valois Ground Floor

Marguerite de Valois Ground Floor

• 16:30 19:30
Parallel Session Astro+Cosmo
Convener: Denise Boncioli
• 16:30
Recent Results from ANTARES 20m
Speaker: Giulia Illuminati (IFIC Valencia)
• 16:50
Cosmic Tau Neutrinos and the Astrophysical Neutrino Flavor Composition 20m
Speaker: Juliana Stachurska (DESY)
• 17:10
Radio Neutrino Astronomy 20m
Speaker: Daniel García Fernández (DESY)
• 17:30
HAWC: Results and Prospects 20m
Speaker: Dr Harm Schoorlemmer (Max-Planck-Institut für Kernphysik, Heidelberg)
• 17:50
EBL and Star Formation History from Fermi Data 20m
• 18:10
The transient sky at very-high energies: the MAGIC observations in the multi-messenger context 20m
Speaker: Antonio Stamerra (INAF, Rome)
• 18:30
News from the very-high-energy sky with H.E.S.S. 20m
Speaker: Andreas Zech (Observatoire de Paris)
• 18:50
Recent highlights from VERITAS 20m
Speaker: Olivier Hervet (UC Santa Cruz)
• 19:10
Highlights from the VERITAS Radio Galaxy Observation Program 20m
Speaker: Lucy Fortson (University of Minnesota)
• 16:30 19:30
Parallel Session BSM+DM
Convener: Priscilla Cushman (University of Minnesota)
• 16:30
Latest results from the Xenon1T Dark Matter Experiment, and future prospects 20m

Observations at astronomical and cosmological levels suggest the existence of a new form of non-luminous matter that interacts gravitationally with baryonic matter. The XENON1T detector, located at the underground National Laboratory of Gran Sasso in Italy, was designed and built to detect nuclear recoils from particles that may constitute the nature of this Dark Matter, their existence emerging in theories beyond the Standard Model under the generic name of Weakly Interacting Massive Particles (WIMPs). Using a 2t of ultra-pure liquid Xenon as target mass, this double phased TPC which was operational from late 2016 to 2018, after a 1 $\text{t}\times\text{yr}$ exposure, exhibiting an ultra-low electronic recoil background, did not observed a significant excess of the number of events over the expected background, thus achieving to provide the most stringent limit, to date, on the WIMP-nucleon spin-independent elastic scattering cross-section for WIMP masses above 6 $\text{GeV}/\text{c}^2$.
In this talk I will present an overview of the XENON1T experiment, its latest results, as well as the prospects for its immediate upgrading, the XENONnT detector that is expected to increase the sensitivity by more than one order of magnitude.

Speaker: Jean-Philippe ZOPOUNIDIS (Sorbonne Université, LPNHE)
• 16:50
Recent results from EDELWEISS Dark Matter searches 20m

The EDELWEISS collaboration is performing direct searches for light Dark Matter particles using cryogenic germanium detectors equipped with a charge and thermal signal readout. This versatile and highly performing technology opens new possibilities for searches for signals involving either electrons or nuclear recoils. This is attested to by results on Axion-Like Particles in the keV range, and by the attainment of the first sub-GeV spin-independent dark matter limit based on a germanium target. The search has been extended to Strongly Interacting Particles (SIMP) down to 45 MeV by exploiting the Migdal effect. New results on SIMPs with spin-dependent interactions will also be presented.

Speaker: Dimitri Misiak (IPNL)
• 17:10
COSINE-100 dark matter experiment 20m

The COSINE experiment aims at direct detection of Weakly Interacting Massive Particle (WIMP) using NaI(Tl) detectors, the same target material as the DAMA/LIBRA which claims to observe an annually modulated WIMP signal. The first phase of the experiment with ~106 kg of NaI(Tl) crystals consists of several shield structures including a liquid scintillator veto counter and installed at the Yangyang underground laboratory in Korea. The experiment started physics data taking in late September 2016 and several WIMP search analyses have been performed based on the 2 keV energy threshold with about 3 counts/day/kg/keV background rate in a region between 2 and 6 keV. In this talk, recent results and the prospect of the COSINE-100 experiment will be presented.

Speaker: Kyungwon Kim (Center for Underground Physics, IBS)
• 17:30
First results of ANAIS-112 on dark matter annual modulation 20m

ANAIS (annual modulation with NaI Scintillators) is a dark matter direct detection experiment located at the Canfranc Underground Laboratory (LSC, Spain). Its main goal is to proof or refute in a model independent way the DAMA/LIBRA positive result: an annual modulation in the low-energy detection rate compatible with the expected signal induced by WIMPs in the galactic halo. This signal, observed during more than 20 years, is in strong tension with the negative results of other very sensitive experiments, but a direct comparison using the same target material (NaI(Tl)) is still lacking. ANAIS-112, consisting of 112.5 kg of NaI(Tl) scintillators, was installed at the LSC in August 2017 and to the date it has accumulated more than 1.5 y of data. In this talk we will present the annual modulation analysis corresponding to an exposure of 157.55 kgxy and the ANAIS-112 projected sensitivity for the scheduled 5 y of operation.

Speaker: Maria Martinez (Universidad de Zaragoza)
• 17:50
First Results from the ABRACADABRA-10 cm Prototype 20m

The evidence for the existence of Dark Matter is well supported by many cosmological observations. Separately, long standing problems within the Standard Model point to new weakly interacting particles to help explain away unnatural fine-tunings. The axion was originally proposed to explain the Strong-CP problem, but was subsequently shown to be a strong candidate for explaining the Dark Matter abundance of the Universe. ABRACADABRA is a proposed experiment to search for ultralight axion Dark Matter, with a focus on the mass range $10^{-14} < m_a < 10^{-6}$ eV. We search for these axions and other axion like particles (ALPs) through a modification to Maxwell's equations, which cause strong magnetic fields to source weak oscillating electrical currents parallel to the field. In this talk, I will describe the working principle behind the ABRACADABRA experiment, present the first results from a prototype experiment called ABRACADABRA-10 cm that we have built at MIT, and discuss prospects for future versions of ABRACADABRA.

Speaker: Jonathan Ouellet (Massachusetts Institute of Technology)
• 18:10
The search for Dark Matter with the IceCube Neutrino Telescope 20m
Speaker: Juan Antonio Aguilar Sanchez (Université Libre de Bruxelles)
• 18:30
Directional Dark Matter Search with Nuclear Emulsion 20m

The NEWSdm experiment, based on nuclear emulsions, is proposed to measure the direction of WIMP-induced nuclear recoils. We discuss the potentiality, both in terms of exclusion limits and potential discovery, of a directional experiment based on the use of a solid target made by newly developed nuclear emulsions and read-out systems reaching sub-micrometric resolution. We also report results of the test exposure conducted in Gran Sasso last year.

Speaker: Murat Ali Guler (Middle East Technical University (TR))
• 18:50
DARWIN: the ultimate dark matter detector 20m

The DARWIN experiment is a proposed next-generation dual-phase time projection chamber which will operate 50 tonnes of natural xenon and whose primary goal will be to explore the entire experimentally accessible parameter space for WIMPs. Besides its unprecedented sensitivity to WIMPS above a mass of 5 GeV/c2, such a large detector, with its low-energy threshold and ultra low background level, will be sensitive to other rare interactions as well. DARWIN will measure low energy solar neutrinos with a high precision, observe the coherent neutrino-nucleus interaction and detect galactic supernovae. In addition it will search for axions, axion-like particles and the neutrinoless double beta decay of 136Xe. We discuss here the concept of DARWIN, the ongoing R&D and the sensitivity for the different physics channels.

Speaker: Patricia Sanchez-Lucas (University of Zurich)
• 16:30 19:30
Parallel Session Higgs+Top+EW
Convener: Andre Hoang (University of Vienna)
• 16:30
Top mass measurements in ATLAS and CMS 20m
Speaker: Marco Vanadia (Universita e INFN, Roma II (IT))
• 16:50
Top-quark property measurements in ATLAS and CMS 20m
Speaker: Pietro Vischia (Universite Catholique de Louvain (UCL) (BE))
• 17:10
Top-quark modelling 20m
Speaker: Tomas Jezo (University of Zurich)
• 17:30
Top-quark cross-sections and properties in CMS 20m
Speaker: Juan Gonzalez (Universidad de Oviedo (ES))
• 17:50
Differential cross-section measurements for ttbar and ttbar+bb production in ATLAS 20m
Speaker: Mr Yasiel Delabat Diaz (Deutsches Elektronen-Synchrotron (DE))
• 18:10
Precise predictions for ttA/tt cross section ratios at the LHC 20m

With the goal of increasing the precision of NLO QCD prediction for pp -> ttA in the dilepton decay channel we study cross section ratios. Our analysis is based on fully realistic matrix elements including off-shell effects and interferences between resonance and continuum contributions. Focusing on the LHC at 13 TeV we present numerical results for inclusive and differential ratios and a detailed study of theoretical uncertainties stemming from renormalization/factorization scales as well as the impact of the parton distribution functions.

Speaker: Manfred Kraus (HU Berlin)
• 18:30
Total and differential cross-sections for ttbar and ttbar+gamma in ATLAS 20m
Speaker: Joergen Sjoelin (Stockholm University (SE))
• 18:50
Rare top quark production in CMS 20m
Speaker: Barbara Alvarez Gonzalez (Universidad de Oviedo (ES))
• 19:10
Equivalent photons in proton-proton and ion-ion collisions at the LHC 20m

The LHC can be considered as a photon-photon collider with photons produced in ultraperipheral collisions of charged particles. Ultraperipheral collision is a kind of collision when the colliding particles pass at large distance from each other and collide with their electromagnetic fields. The particles remain intact after the collision. Electromagnetic field of an ultrarelativistic particle can be represented as a bunch of almost real (equivalent) photons distributed according to a known spectrum. Thus, ultraperipheral collisions at the LHC are a rich source of events to study $\gamma \gamma \to$ something reactions.

Photon flux in an ultraperipheral collision is proportional to $(Z_1 Z_2)^2$ where $Z_1$ and $Z_2$ are charges of the colliding particles. In this respect collisions of lead ions with $Z = 82$ look very promising for the search of New Physics in photon-photon collisions even though the $pp$ luminosity is a lot higher. However, the invariant mass of the produced system is limited by the maximum momentum of a virtual photon that the colliding particle can interact with in its reference frame without breaking apart. For the protons colliding with the energy of 13 TeV, the invariant mass can reach 2.8 TeV, while in the case of lead-lead collision with the energy of 5.02 TeV/(nucleon pair) production cross section falls rapidly after 100 GeV.

Production cross section of ultraperipheral collisions is very sensitive to electromagnetic form factors of the colliding particles. The data for $^{208}$Pb available in the literature is somewhat controversial. Nevertheless, the calculated production cross section for a pair of muons closely follows the experimental points. Production of muons in proton-proton collisions is described within the experimental uncertainty.

Ultraperipheral collisions at the LHC can be used to improve limits on supersymmetry in the region where chargino and neutralino masses are nearly equal. Final state protons can be registered by the forward detectors (ATLAS Forward Proton Detector or CMS-TOTEM Precision Spectrometer), and momenta of charginos produced in the collision are known. This information is used to greatly reduce the background from the Standard Model processes.

The talk is mostly based on the paper arXiv:1806.07238.

Speaker: Evgenii Zhemchugov (Institute for Theoretical and Experimental Physics)
• 16:30 19:30
Parallel Session QCD+HF
Convener: Jean-Yves Ollitrault (CNRS)
• 16:30
Vector Boson plus jet at forward rapidities 20m
Speaker: Duncan Walker (Durham)
• 16:50
Higgs boson pair and H+jet production 20m
Speaker: Matthias Kerner (Zurich U.)
• 17:10
Subtraction methods at NNLO 20m
Speaker: Raoul Röntsch (CERN)
• 17:30
Light by light scattering in ATLAS 20m
Speaker: Kristof Schmieden (CERN)
• 17:50
Open heavy flavour and quarkonia results from ALICE 20m
Speaker: Philippe Crochet (Clermont-Ferrand)
• 18:10
Results from proton-lead and fixed-target collisions at LHCb 20m
Speaker: Elisabeth Maria Niel (Orsay-LAL)
• 18:30
Muon collider: the Low EMittance Muon Accelerator (LEMMA) approach 20m
Speaker: Nazar Bartosik (Torino)
• 20:00 21:30
Dinner Dinning Room @ Chateau

Dinning Room @ Chateau

• Thursday, 6 June
• 09:00 10:30
QCD+EW+Top Physics+Heavy Ions Gaston d'Orléans

Gaston d'Orléans

Château de Blois, Blois, Loire Valley, France
Convener: Marumi Kado (Centre National de la Recherche Scientifique (FR))
• 09:00
Recent Precision W/Z Measurements at the LHC 30m
Speaker: Nenad Vranjes (Institute of Physics Belgrade (RS))
• 09:30
Recent VBS and VBF Measurements at the LHC 30m
Speaker: Dr Pietro Vischia (Universite Catholique de Louvain (UCL) (BE))
• 10:00
Progress in State-of-the-Art Matched Resummation/pQCD Calculations 30m
Speaker: Pier Francesco Monni (CERN)
• 10:30 11:00
Coffee Break Marguerite de Valois Ground Floor

Marguerite de Valois Ground Floor

• 11:00 12:00
QCD+EW+Top Physics+Heavy Ions Gaston d'Orléans

Gaston d'Orléans

Château de Blois, Blois, Loire Valley, France
Convener: Heather Gray (LBNL)
• 11:00
Defining and measuring the top mass 30m
Speaker: Andre Hoang (University of Vienna)
• 11:30
Heavy Ion Theory 30m
Speaker: Jean-Yves Ollitrault (CNRS)
• 12:00 12:15
Neutrino Physics Gaston d'Orléans

Gaston d'Orléans

Château de Blois, Blois, Loire Valley, France
Convener: Heather Gray (LBNL)
• 12:00
Cancelled - Status of Neutrino Parameters and Future Prospects 15m
Speaker: Roxanne Guenette (Harvard)
• 12:15 13:45
Lunch Dinning Room @ Chateau

Dinning Room @ Chateau

• 13:45 14:45
Neutrino Physics Gaston d'Orléans

Gaston d'Orléans

Château de Blois, Blois, Loire Valley, France
Convener: Sotiris Loucatos (Irfu-CEA-Saclay and APC, Paris)
• 13:45
Theoretical Models for the Neutrino Mass and Mixing Pattern 30m
Speaker: Mu-Chun Chen (University of California Irvine)
• 14:15
Lepton number violation: a global picture 30m
Speaker: Michele Lucente (Louvain university, Belgium)
• 14:45 15:15
The ICISE Centre and presentation of conferences in 2019 Gaston d'Orléans

Gaston d'Orléans

Château de Blois, Blois, Loire Valley, France
Convener: Sotirios Loucatos (Université Paris-Saclay (FR))
• 15:15 15:45
Coffee Break Marguerite de Valois Ground Floor

Marguerite de Valois Ground Floor

• 15:45 17:45
Discussion Session Gaston d'Orléans

Gaston d'Orléans

Château de Blois, Blois, Loire Valley, France
Convener: Daniel Froidevaux (CERN)
• 15:45
Future Electron Positron Colliders 30m
Speaker: Alain Blondel (Universite de Geneve (CH))
• 16:15
Future Hadron Colliders 30m
Speaker: Heather Gray (LBNL)
• 16:45
Discussion 1h
Speaker: All
• 20:00 23:00
Dinner: Cocktail and Conference Dinner Dinning Room @ Chateau

Dinning Room @ Chateau

• Friday, 7 June
• 08:30 10:00
The High Energy Universe Gaston d'Orléans

Gaston d'Orléans

Château de Blois, Blois, Loire Valley, France
Convener: Juan Antonio Aguilar (ULB Brussels)
• 08:30
Results from the Pierre Auger Observatory in the Light of UHECR Interactions 30m
Speaker: Denise Boncioli (GSSI)
• 09:00
Gamma Ray Astrophysics 30m
Speaker: Emma de Ona-Wilhelmi (DESY and CSIC/IEEC)
• 09:30
Multimessenger Astrophysics 30m
Speaker: Imre Bartos (University of Florida)
• 10:00 10:30
Cosmology Gaston d'Orléans

Gaston d'Orléans

Convener: Heide Costantini (INFN-Genova (ITALY)/ University of Notre Dame (USA))
• 10:00
21 cm Cosmology 30m
Speaker: Miguel Morales (University of Washington)
• 10:30 10:45
Coffee Break Gaston d'Orléans

Gaston d'Orléans

Château de Blois, Blois, Loire Valley, France
• 10:45 11:45
Cosmology Gaston d'Orléans

Gaston d'Orléans

Château de Blois, Blois, Loire Valley, France
Convener: Emma de Ona-Wilhelmi (DESY and CSIC/IEEC)
• 10:45
The Dark Energy Survey, Cosmological Results and Future Perspectives 30m

We summarize the most recent cosmological results from the Dark Energy Survey (DES). By combination of different probes (weak lensing, large scale structure, baryonic acoustic oscillations and supernovae Ia), DES has for the first time, for a galaxy survey, reached a precision in the cosmological parameters of the order of cosmic microwave background experiments. So far, no significant deviations from the LCDM model have been found. In the upcoming years, DES will improve over its current results, which will help to elucidate whether we are on the verge of a new revolution in cosmology, through a breakdown of the LCDM model, or if, on the contrary, the concordance model still holds as the best explanation for the nature of the Universe.

Speaker: Aurelio Carnero (LIneA, Rio de Janeiro)
• 11:15
Dark Energy: Theoretical Developments 30m
Speaker: Ed Copeland (Nottingham University)
• 11:45 12:45
Summary Talk Gaston d'Orléans

Gaston d'Orléans

Château de Blois, Blois, Loire Valley, France
Convener: Jean TRAN THANH VAN
• 11:45
Conference Summary 1h
Speaker: Graciela Beatriz Gelmini (University of California Los Angeles (US))
• 12:45 12:50
Concluding Remarks Gaston d'Orléans

Gaston d'Orléans

Château de Blois, Blois, Loire Valley, France
• 12:50 14:20
Lunch Dinning Room @ Chateau