BLV2019

21 Oct 2019, 09:00 → 24 Oct 2019, 19:30 Europe/Madrid

Main Auditorium (IFT (Madrid) )

The 2019 International Workshop on Baryon and Lepton Number Violation (BLV2019) will be hosted by the Institute for Theoretical Physics (IFT) in Madrid, on October 21-24, 2019.

Oral contributions are by invitation only, except for PhD students: they are welcome to apply to participate in the PhD forum with a 5 min. plenary talk complemented with a poster on the same subject. Abstract submission for poster contributions is open for all participants. The deadline for abstract submission is July 15th, late submissions will be placed in a waiting list and considered if slots become available.

• Partial support will be available for a limited number of young participants. 

Monday 21 October

09:00 → 09:50 Registration

09:50 → 10:00 Welcome

10:00 → 10:30 Madrid reflections on the SM & Beyond

Speaker: Pilar Hernandez

BLV2019.pdf

10:30 → 11:00 "Science and Ann Nelson"

Speaker: David Kaplan

Ann_Madrid_Talk.pdf

11:00 → 11:30 "New developments in electroweak baryogenesis"

Speaker: Thomas Markus Konstandin (Deutsches Elektronen-Synchrotron (DE))

seminar.pdf

11:30 → 12:00 Coffee

12:00 → 12:30 "Search for Baryon Number Violation with free neutrons"

Speaker: Yuri Kamyshkov (University of Tennessee)

YK-BLV-2019.pdf

12:30 → 13:00 “New perspectives on baryogenesis”

Speaker: Andrew Long (University of Michigan - LCTP)

Andrew_Long--BLV_2019.pdf

13:00 → 14:30 Lunch

14:30 → 15:00 "Symmetry Violation Searches with Short- and Long-baseline Neutrino Experiments"

Speaker: Georgia Karagiorgi

blv2019.pdf

15:10 → 16:10 Baryon Number Violation

Convener: Benjamin Grinstein (Univ. of California San Diego (US))

15:10 Non-standard nucleon decay modes

Speaker: Martin Hirsch (Instituto de Fisica Corpuscular (CSIC, University of Valencia))

MH_BLV19.pdf

15:30 Proton decay at one loop

Speaker: Toshihiko Ota

BLV-Madrid-ota.pdf

15:50 Leptoquarks and baryon number violation

Speaker: Svjetlana Fajfer (Univ. of Ljubljana and Inst. J. Stefan)

BLV2019Fajfer.pdf

15:10 → 16:10 Dark Matter

Convener: Pasquale Serpico (LAPTh - CNRS & Univ. Savoie (FR))

15:10 Dark matter bound states

Speaker: Kalliopi Petraki

Talk_2019_10_20_Madrid_BLV_DarkMatterBoundStates.pdf

15:30 Twin Neutralino Dark Matter

Speaker: Marcin Badziak

TwinNeutralino.pdf

15:50 (Baby)IAXO

Speaker: Javier Galán Lacarra

baby-IAXO-Galan.pdf

15:10 → 16:10 Lepton Flavour and Number Violation

Convener: Jure Zupan (University of Cincinnati)

15:10 The theory of 0nu2beta

Speaker: Wouter Dekens (Los Alamos National Lab)

WDekens_BLV2019.pdf

15:30 NLDBD in Ge-76

Speaker: Anna Julia Zsigmond (Max Planck Institute for Physics)

GERDA_BLV2019_AJZsigmond.pdf

15:50 NLDBD with bolometers

Speaker: O'Donnell Thomas

NLDBD_with_Bolometers.pdf

15:10 → 16:10 Neutrinos

Convener: Yvonne Wong (The University of New South Wales)

15:10 Massive neutrinos and large-scale structure simulations

Speaker: Dr Carmelita Carbone (National Institute for Astrophysics - INAF)

Carbone_BLV2019.pdf

15:30 Non-standard neutrino interactions in cosmology

Speaker: Dr Isabel Mira Oldengott

BLV19_Oldengott.pdf

15:50 Sterile neutrino thermalisation in the early Universe

Speaker: Pablo Fernández de Salas (Stockholm University)

Pablo-talk-v1.pdf

16:10 → 16:40 Coffee

16:40 → 17:40 Baryogenesis

Convener: Dr Daniele Teresi (Università di Pisa)

16:40 Neutrino Option Leptogenesis

In this talk I will discuss the compatibility between the Neutrino Option, in which the electroweak scale is generated by PeV scale Majorana neutrinos, and leptogenesis. In particular, we find the Neutrino Option is consistent with resonant leptogenesis and we subsequently explore the viable parameter space.

Speaker: Jessica Turner (CERN)

BLV2019_JessicaTurner.pdf

17:00 Type-I Seesaw as the Common Origin of Neutrino Mass, Baryon Asymmetry, and the Electroweak Scale

In this talk, I will discuss some recent work on resonant leptogenesis in the context of the so-called "neutrino option". The "neutrino option" denotes the idea that the Higgs mass parameter results entirely from heavy-neutrino threshold corrections in the type-I seesaw extension of the Standard Model. This is possible for a heavy-neutrino mass scale of the order of 10^6 to 10^7 GeV, provided that the Higgs scalar potential satisfies classically scale-invariant boundary conditions at high energies. In my talk, I will describe the viable parameter space of this scenario, which is consistent with (1) the low-energy data on neutrino oscillations, (2) the observed value of the baryon asymmetry, and (3) electroweak symmetry breaking with a 125 GeV Higgs boson. In addition, I will highlight some interesting implications for high-energy flavor models and low-energy neutrino observables. This talk is based on work in collaboration with Vedran Brdar, Alexander J. Helmboldt, and Sho Iwamoto [1905.12634]. I will also refer to the closely related work by I. Brivio, K. Moffat, S. Pascoli, S.T. Petcov, and J. Turner [1905.12642].

Speaker: Kai Ruven Schmitz (CERN)

schmitz_baryogenesis_2019_10_21.pdf

17:20 Preheating confronts leptogenesis

High scale leptogenesis is notoriously difficult to probe experimentally. In this talk, I will discuss constraints on a minimal model, in which the observed baryon asymmetry is realized after the inflaton decays into the lightest sterile neutrino. Because this scenario induces a Higgs-inflation coupling at the radiative level, strong constraints come from the stability of the Higgs vacuum during pre-heating. The constraints are strongest when the sterile neutrino is thermal at production. I will show how these constraints depend on the reheat temperature, the inflaton mass, and the masses in the neutrino sector.

Speaker: Djuna Croon (University of Sussex)

BLV2019.pdf

16:40 → 17:40 Exotics at Colliders

Convener: Eva Halkiadakis (Rutgers State Univ. of New Jersey (US))

16:40 Searches for Leptoquarks at the LHC

Speaker: David Michael Morse (Northeastern University (US))

Morse_David_LQ_BLV2019.pdf

17:00 B-anomalies and Leptoquarks

Speaker: Javier Fuentes-Martin (University of Zurich)

fuentes_BLV2019.pdf

17:20 Lepton flavor and baryonic flavor violating searches at LHCb

Speaker: Rosa Fini (Universita e INFN, Bari (IT))

BLV2019_Fini.pdf

16:40 → 17:40 Lepton Flavour and Number Violation

Convener: Jure Zupan (University of Cincinnati)

16:40 Beyond tonne-scale DBD

Speaker: Bjoern Soenke Wonsak

Slides_THEIA_BLV_clean9.pdf

17:00 LNV and neutrino models

Speaker: Mr Juan Herrero (INFN, SISSA)

LNscales_BLV.pdf

17:20 LNV in Delta L > 2

Speaker: Renato Fonseca (IPNP, Charles University, Prague)

Renato_Fonseca_BLV2019.pdf

Renato_Fonseca_BLV2019.pptx

16:40 → 17:40 Neutrinos

Convener: Yvonne Wong (The University of New South Wales)

16:40 High-energy neutrinos of cosmic origin

Speaker: Simona Toscano (VUB - Vrije Universiteit Brussel)

BLV2019_SToscano.pdf

17:00 BSM searches in IceCube

Speaker: Jordi Salvadó (University of Barcelona)

IceCubeBSM_jordi.pdf

17:20 Neutrino properties from atmospheric neutrinos

Speaker: Steffen Hallmann (ECAP - Univ. Erlangen)

2019_10_21_neutrino_properties_orca_BLV19.pdf

17:50 → 18:20 “Anomalies in B-decays and why we love LUV”

Speaker: Benjamin Grinstein (Univ. of California San Diego (US))

BLV-Flavor-Grinstein-2019.pdf

18:30 → 19:30 Welcome cocktail

Tuesday 22 October

10:00 → 10:30 "Precision studies of GeV-scale resonant leptogenesis"

Speaker: Mikko Sakari Laine (Universitaet Bern (CH))

madrid19.pdf

10:30 → 11:00 Young Scientist Forum

Convener: S Fajfer (Univ. of Ljubljana and Inst. J. Stefan)

10:30 SO(10) Grand Unified Theory

Speaker: Katerina Jarkovska (Institute of Nuclear and Particle Physics)

Talk_Jarkovska.pdf

10:36 Modular Invariance of Levels 4 and 5

Speaker: Simon King (University of Southampton)

Modular_king_Madrid.pdf

10:42 Studies in Nuclear Model Systematics for Neutron-Antineutron Transformations in Ar-40

Speaker: Joshua Barrow

Presentation-JLBarrow_SPLIT_ForPosting.pdf

10:48 Generalised CP Symmetry in Modular-Invariant Models of Flavour

Speaker: Pavel Novichkov (SISSA/INFN, Trieste)

Novichkov_BLV2019.pdf

11:00 → 11:30 "Prospects on the determination of the Majorana character of neutrinos"

Speaker: Stefan Schönert

201910_blv_schoenert.pdf

11:30 → 12:00 Coffee

12:00 → 12:30 Neutrino Cosmology

Speaker: Yvonne Wong (The University of New South Wales)

yyyw.pdf

12:30 → 13:00 Young Scientist Forum

Convener: S Fajfer (Univ. of Ljubljana and Inst. J. Stefan)

12:30 Gravity-mediated Scalar Dark Matter in Warped Extra-Dimensions

Speaker: Miguel G. Folgado (IFIC CSIC-UV)

miguel_folgado.pdf

12:36 Neutrino Portals to Dark Matter

Speaker: Salvador Rosauro Alcaraz (Universidad Autónoma de Madrid)

Neutrino_Portals_BLV.pdf

12:42 On the Role of the nu_tau Appearance in DUNE in Constraining Standard Neutrino Physics and Beyond

Speaker: Anish Ghoshal (L)

Anish_talk_BLV.pdf

12:48 The Minimal Flavour Violating Axion

Speaker: Fernando Arias Aragón (Universidad Autónoma de Madrid)

MFVA Fernando Arias Aragón.pdf

13:00 → 15:00 Lunch + Poster Session

15:00 → 15:30 Having fun with electrons and muons: B-anomalies and more

Speaker: Gudrun Hiller (Technische Universitaet Dortmund (DE))

BLV2019-ghiller-madrid.pdf

15:30 → 16:40 Baryon Number Violation

Convener: David McKeen (TRIUMF)

15:30 Nucleon decay searches in Super-K and Hyper-K

Speaker: Makoto Miura (ICRR, University of Tokyo)

BLV19-SKpdecay-191018-upload.pdf

16:00 Nucleon decay searches in DUNE

Speaker: Viktor Pec (University of Sheffield)

pec_dune_pdk_search.pdf

16:20 The neutron lifetime anomaly

Speaker: Benjamin Grinstein (Univ. of California San Diego (US))

Grinstein.pdf

15:40 → 16:40 Exotics at Colliders

Convener: Eva Halkiadakis (Rutgers State Univ. of New Jersey (US))

15:40 Constraining 4-fermion interactions from top decays

Speakers: Jose Santiago (Granada University), Jose Santiago (Universidad de Granada (ES))

TopContactInteractions.pdf

16:00 Exotic Higgs Boson searches at the LHC

Speakers: Asma Hadef (Royal Holloway University of London), Asma Hadef (University of Science and Technology of China (CN))

Exotic Higgs Boson Searches at the LHC-4.pdf

16:20 Searches for Hadronic Resonances at the LHC

Speaker: Melpomeni Diamantopoulou (National and Kapodistrian University of Athens (GR))

BLV_22_10_2019.pdf

15:40 → 16:40 Lepton Flavour and Number Violation

Conveners: Ana M. Teixeira (LPC Clermont), Jure Zupan (University of Cincinnati)

15:40 LFV, universality, rare decays at e+e-

Speaker: Mario Merola (Universita e sezione INFN di Napoli (IT))

Merola_LFV_BLV2019.pdf

16:00 LFV, universality @ LHC

Speaker: Ms Zhenzi Wang (Universitaet Zuerich (CH))

presentation_draft_v8.pdf

16:20 Models of flavor and LFV

Speaker: Robert Ziegler (CERN)

Ziegler.pdf

15:40 → 16:40 Neutrinos

Convener: Michel Sorel (IFIC)

15:40 Neutrino mass ordering determination from global fits

Speaker: Ivan Jesus Martinez Soler (Northwestern University)

3nu_Ivan.pdf

16:00 Long-baseline neutrino experiments

Speaker: Kirk Bays

Latest results from long-baseline neutrino experiments.pdf

16:20 Radiative neutrino mass models

Speaker: Avelino Vicente (IFIC - CSIC / U. Valencia)

a_vicente.pdf

16:40 → 17:10 Coffee

17:10 → 18:10 Baryogenesis

Convener: Andrew Long (University of Michigan - LCTP)

17:10 Baryogenesis from Primordial Helical Hypermagnetic Fields

Recent observations of TeV blazars by Fermi identified deficits of secondary GeV cascade photons.
These observations can be explained by intergalactic magnetic fields, which may have a primordial origin.
If the magnetic fields are helical and generated in the early Universe such as before the electroweak symmetry
breaking, nontrivial interaction between (hyper)magnetic fields and other particles can cause some interesting
and non negligible phenomena in the early Universe.
In this talk, I will show that the baryon asymmetry can be generated by the chiral anomaly, and
baryon asymmetry is not completely washed out by the electroweak sphalerons.
Thus, this mechanism can be responsible for the present baryon asymmetry of the Universe.
If this mechanism is responsible for the present Universe, the BSM physics is needed for the generation
of (hyper)magnetic fields but not for the baryogenesis. I will also shortly discuss possible mechanism to generate
such helical hypermagnetic fields suitable for the baryogenesis scenario.

Speaker: Kohei Kamada (Research Center for the Early Universe, University of Tokyo)

KK_1022BLV.pdf

17:30 The baryon asymmetry from a composite Higgs

We present a study of the electroweak baryogenesis in composite Higgs models, with a focus on the case where the electroweak phase transition (EWPT) happens simultaneously with the confinement phase transition of the new strong sector. We show that the EWPT can naturally be strongly first order, and the scale-dependent top quark Yukawa can result in a sufficient amount of CP violation, without conflict with the current experimental constraints.

Speaker: Oleksii Matsedonskyi (DESY Hamburg)

matsedonskyi_madrid.pdf

17:50 High Scale Electroweak Baryogenesis

We explore the possibility that the electroweak phase transition happens at a scale much higher than the electroweak scale today. In this context, high scale CP-violating sources for electroweak baryogenesis are not constrained by low-energy experiments. We propose a scenario of high-scale electroweak baryogenesis linked to flavour physics. This scenario allows for a period of enhanced Yukawa couplings during the evolution of the universe, which source time-dependent CP violation. The electroweak symmetry is never restored after the high-scale phase transition due to negative contributions to the Higgs thermal mass squared from a large number of additional electroweak-scale neutral scalars coupling to the Higgs. As a result, the washout of the baryon asymmetry is avoided.

Speaker: Dr Iason Baldes (Universite Libre de Bruxelles)

BLV_Baldes.pdf

17:10 → 18:10 Baryon Number Violation

17:10 Lattice QCD updates on BNV matrix elements

Speaker: Michael Wagman (MIT)

Wagman_BLV_19.pdf

17:30 Neutron-antineutron connection to baryogenesis

Speaker: Bibhushan Shakya (CERN)

Bibhushan_BLV_nnbar.pdf

17:50 Low-scale baryogenesis and baryon number violation

Speaker: David McKeen (TRIUMF)

BLV2019.pdf

17:10 → 18:10 Dark Matter

Convener: Dr Bryan Zaldivar

17:10 Neutrons and the Dark Sector

Speaker: Jonathan Cornell

Cornell_Neutrons_Dark_Sector.pdf

17:30 Secular effects of Ultralight Dark Matter on Binary Pulsars

Speaker: Sergey Sibiryakov

2DM Sibiryakov_BLV2019.pdf

17:50 Freeze-in in MicrOMEGAs

Speaker: Andreas Goudelis

AndreasBLV.pdf

17:10 → 18:10 Exotics at Colliders

Convener: Eva Halkiadakis (Rutgers State Univ. of New Jersey (US))

17:10 Searches for Vector Like Quarks at the LHC

Speaker: Aniello Spiezia (Chinese Academy of Sciences (CN))

AnielloSpiezia_BLV2019.pdf

17:30 Vector resonances in BSM

Speaker: Dr Rafael Delgado (Technische Universität München)

BLV2019.pdf

17:50 Searches for heavy gauge bosons at the LHC

Speaker: Tetiana Hryn'ova (Centre National de la Recherche Scientifique (FR))

BLV-Oct2019.pdf

18:20 → 18:50 "Theory thoughts on lepton flavor violation"

Speaker: Jure Zupan (University of Cincinnati)

BLV2019_Madrid_Zupan_print.pdf

Wednesday 23 October

10:00 → 10:30 LNV and cLFV probes of heavy Majorana fermions

Speaker: Ana M. Teixeira (LPC Clermont)

AMTeixeira_LNV-23.10.pdf

10:30 → 11:00 Young Scientist Forum

Convener: Yoshitaka Kuno (Osaka University)

10:30 Model-independent analysis of charged-lepton-flavour-violating τ processes

Speaker: Kevin Monsálvez Pozo (IFIC)

ModelindependentanalysisCLFV.pdf

10:36 Scalar dark matter, Leptogenesis, neutrino mass and rare $B_{(s)} \to K^* (\phi) \mu^+ \mu^-$ processes in a minimal $B-L$ model

Speaker: Subhasmita Mishra (IIT Hyderabad)

2 YSF Subhasmita BLV_talk.pdf

10:42 Exotic Vector-Like Quark Decays in the Minimal Linear Sigma Model

Speaker: Javier Alonso González (Instituto de Física Teórica UAM-CSIC)

javier_alonso_Exotic_VLQ_Decays_MLsM_BLV2019.pdf

11:00 → 11:30 "Lepton flavour violation in muon decays"

Speaker: Luca Galli (INFN)

GalliLFVBLV.pdf

11:30 → 12:00 Coffee

12:00 → 12:30 "SMEFT: The new Standard Model"

Speaker: Verónica Sanz

BLV19_Sanz_SMEFT.pdf

12:30 → 13:00 "Science and Olya Igonkina"

Speaker: Wouter Verkerke (Nikhef National institute for subatomic physics (NL))

blv19-olya-v10.pdf

13:00 → 14:15 Lunch

14:15 → 15:15 Baryogenesis

Convener: Daniele Teresi (Università di Pisa)

14:15 Parameter space of baryogenesis in the νMSM

The Standard Model accompanied with two right-handed neutrinos with masses below the weak scale can explain the observed baryon asymmetry of the Universe. Moreover, this model is at least partially testable in the forthcoming experiments such as NA62, SHiP, and MATHUSLA. The remarkable progress in understanding of various rates entering the kinetic equations describing the asymmetry generation along with considerable improvements of the numerical procedures allow us to perform a comprehensive analysis of the parameter space of the model. We find that the region of parameters leading to successful baryogenesis is notably larger than it was previously obtained. Our results are presented in a way that they can be readily used for studies of sensitivity of various experiments searching for the right-handed neutrinos responsible for the baryon asymmetry of the Universe. We also present a detailed comparison with the studies by other groups.

Speaker: Inar Timiryasov (EPFL)

BLV_Timiryasov.pdf

14:35 Low-scale leptogenesis with three heavy neutrinos

Leptogenesis induced by the oscillations of GeV-scale neutrinos provides a minimal and testable explanation of the baryon asymmetry of the Universe. In this work we extend previous studies invoking only two heavy neutrinos to the case of three heavy neutrinos. We find qualitatively new behavior as a result of lepton number violating oscillations and decays, strong flavor effects in the washout and a resonant enhancement due to matter effects. An approximate global B-L symmetry (representing the difference of baryon and a generalized lepton number) can protect the light neutrino masses from large radiative corrections, while simultaneously providing the ingredients for the resonant enhancement of the lepton asymmetry due to thermal contributions to the heavy neutrino dispersion relations. This mechanism is particularly efficient for large heavy neutrino mixing angles near the current experimental limits, a regime in which leptogenesis is not feasible in the minimal scenario with two heavy neutrinos. In this new parameter regime, low-scale leptogenesis is testable by the LHC and other existing experiments.

Speaker: Juraj Klaric (EPFL - Ecole Polytechnique Federale Lausanne (CH))

klaric_2019BLV.pdf

14:55 Leptogenesis in the Scotogenic model

In this talk we consider the scenario in which the Standard model is augmented by three generations of right-handed neutrinos and a scalar doublet. The newly introduced fields share an odd charge under a $\mathbb{Z}_2$ parity symmetry. We present a scenario in which the dark matter particle is at the keV-scale. Such particle is free from X-ray limits due to the unbroken parity symmetry that forbids the mixing between active and right-handed neutrinos. The active neutrino masses are radiatively generated from the new scalars and the two heavier right-handed states with $\sim \mathcal{O}(100)$ GeV masses. We demonstrate how these heavy fermions can also produce the observed baryon asymmetry of the Universe through the combination of Akhmedov-Rubakov-Smirnov mechanism and recently proposed scalar decays. We identify the parameter space where the successful leptogenesis is compatible with the observed abundance of dark matter as well as the measurements from the neutrino oscillation experiments.

Speaker: Vedran Brdar (MPIK Heidelberg)

Vedran.pdf

14:15 → 15:35 Dark Matter

Convener: Pasquale Serpico (LAPTh - CNRS & Univ. Savoie (FR))

14:15 Dark Blobs: Exponentially Large Composite Dark Matter

Speaker: Dorota Grabowska

Grabowska_ExpLargeCompDM.pdf

14:35 Antiproton production cross section measurement in pHe collisions at LHCb: results and prospects

Speakers: Saverio Mariani, TBC TBC

BLV_2019_AntiprotonProduction.pdf

14:55 AMS-02 antiprotons are consistent with a secondary astrophysical origin

Speaker: Mathieu Boudaud

pbar_boudaud.pdf

15:15 Direct Detection of Slow Dark Matter

Speaker: Eric David Kramer

BVL.edk.pdf

14:15 → 15:35 Exotics at Colliders

Convener: Dr Veronica Sanz

14:15 Searches for Long Lived particles at the LHC

Speaker: Andrew Evan Hart (Rutgers State Univ. of New Jersey (US))

blv_20191023.pdf

14:35 Long-lived particles in BSM

Speaker: Dr Bryan Zaldivar

Zaldivar_LLPs_DM.pdf

14:55 Lepton flavor violating searches at the LHC

Speaker: Tomas Davidek (Charles University (CZ))

lfv_atlas_cms_2.pdf

15:15 Exotic dark sector searches at the LHC

Speaker: Matthias Saimpert (Deutsches Elektronen-Synchrotron (DE))

BLV2019_20191023.pdf

14:15 → 15:35 Lepton Flavour and Number Violation

Convener: Ana M. Teixeira (LPC Clermont)

14:15 mu-> e conversion with COMET

Speaker: Yoshitaka Kuno (Osaka University)

BLV2019-KUNO.pdf

14:35 Mu2e

Speaker: Gaponenko Andrei

gaponenko-mu2e-v2.pdf

14:55 CLF change and Non-Standard neutrino Interactions

Speaker: Martin Gorbahn (Liverpool University)

nsi_madrid_blv2019.pdf

15:15 Neutrino masses and LFV in Little Higgs models

Speaker: Jose Santiago (Universidad de Granada (ES))

LNFVinLHT.pdf

16:00 → 19:00 Social Activity

20:00 → 23:00 Conference Dinner

Thursday 24 October

10:00 → 10:30 "Overview of indirect Dark matter search: Status and challenges"

Speaker: Pasquale Serpico (LAPTh - CNRS & Univ. Savoie (FR))

1910_IDMreview.pdf

10:30 → 11:00 Young Scientist Forum

Convener: Laura Lopez Honorez (Vrije Universiteit Brussel)

10:30 Is Lepton Flavour Universality Violation a hint on nonunitary New Physics Couplings?

Speaker: Jonathan Kriewald (LPC Clermont)

01_Kriewald_BLV.pdf

10:36 New Physics search with B_s^0→l^+ l^- in Z^' model

Speaker: SWAGATA BISWAS (NATIONAL INSTITUTE OF TECHNOLOGY DURGAPUR)

blv_2019_swagata.pdf

10:42 CP violation asymmetry of semileptonic decay channel B→πμ^+μ^- in non universal Z prime model

Speaker: PRITI NAYEK (NATIONAL INSTITUTE OF TECHNOLOGY DURGAPUR)

BLV 2019_priti.pdf

10:48 Baryogenesis and dark matter from B meson oscillations

Speaker: Gonzalo Alonso Alvarez (Universidad de Zaragoza (ES))

4YSF Alonso_Alvarez_Gonzalo_BLV19.pdf

11:00 → 11:30 "CP-violating axion-nucleon coupling in the SM and beyond"

Speaker: Maxim Pospelov

Pospelov Madrid2019.pdf

11:30 → 12:00 Coffee

12:00 → 13:00 Baryon Number Violation

Convener: Georgia Karagiorgi

12:00 Baryon-number violation by two units and the deuteron lifetime

Speaker: Femke Oosterhof (University of Groningen)

PresentatieMadrid3.pdf

12:20 New paths to baryon number violation by two units and their implications

Speaker: Susan Gardner (University of Kentucky)

svg_bnv_blv19.pdf

12:40 Experimental overview of free neutron-antineutron oscillation

Speaker: Albert Young (NCSU)

12:00 → 13:00 Dark Matter

Convener: Pasquale Serpico (LAPTh - CNRS & Univ. Savoie (FR))

12:00 Connections between neutrinos and DM

Speaker: Bibhushan Shakya

1DM_Bibhushan_BLV_DM_nu.pdf

12:20 Leptophobic Dark Matter and the Baryon Number Violation Scale

Speaker: Clara Murgui

2DM Clara BLVCM.pdf

12:40 Leptophilic dark matter

Speaker: Laura Lopez Honorez

Lopez-Honorez-BLV19.pdf

12:00 → 13:00 Lepton Flavour and Number Violation

Convener: Ana M. Teixeira (LPC Clermont)

12:00 "Xenon TPCs for double beta decay searches"

Speaker: Michel Sorel (IFIC)

BLV2019_Sorel.pdf

12:20 Axions and LFV

Speaker: Simone Blasi (Max Planck Institute for Nuclear Physics)

BLV2019_blasi.pdf

12:40 Discussion

13:00 → 14:30 Lunch

14:30 → 15:00 “Dark Matter Direct Detection: Status and Prospects"

Speaker: Jocelyn Rebecca Monroe (University of London (GB))

jmonroe_blv2019.pdf

15:00 → 15:30 "Dark sectors at accelerator experiments"

Speaker: Stefania Gori (UC Santa Cruz)

TalkBLV.pdf

15:40 → 16:40 Baryogenesis

Convener: Kohei Kamada (Research Center for the Early Universe, University of Tokyo)

15:40 Baryogenesis and Dark Matter from B Mesons

In this talk, based on arXiv:1810.00880, I will present a new mechanism of Baryogenesis and dark matter production in which both the dark matter relic abundance and the baryon asymmetry arise from neutral B meson oscillations and subsequent decays.

Speaker: Miguel Escudero (IFIC-University of Valencia)

Escudero_Baryogenesis_BLV.pdf

16:00 Leptogenesis without Loops

We propose a new testable leptogenesis mechanism where the lepton asymmetry is generated from the interference of tree-level diagrams only. As a concrete example, we consider an amalgamation of the scotogenic model with an inert Higgs doublet and right-handed neutrinos, along with an electroweak-triplet scalar for a type-II seesaw. The imaginary part needed for the required CP-asymmetry comes from the trilinear coupling of the inert-doublet with the triplet. Neutrino mass is generated by both scotogenic and type-II seesaw contributions. The neutral component of the inert Higgs doublet serves as the dark matter candidate.

Speaker: Arnab Dasgupta (School of Liberal Arts, Seoul National University of Science and Technology)

16:20 Strong baryogenesis

In this talk I will explore a simple model which naturally explains the observed BAU. The strong coupling is promoted to a dynamical quantity, evolving through the VEV of a singlet field which mixes with the Higgs. In the resulting cosmic history, QCD confinement and EWSB occur simultaneously close to the weak scale. The early confinement triggers the axion to roll toward its minimum, and the changing CP-violation is communicated to the weak sector through the eta' meson, resulting in spontaneous baryogenesis. I will identify the regions of parameter space for which the asymmetry is frozen in and relaxation to the Standard Model vacuum occurs before BBN. For these regions, I will also discuss current and future collider and cosmological constraints.

Speaker: Djuna Croon (University of Sussex)

BLV2019b.pdf

15:40 → 16:40 Dark Matter

Convener: Bryan Zaldívar Montero (IFT UAM/CSIC)

15:40 Inflaxion dark matter

Speaker: Lorenzo Ubaldi

1DM Inflaxion_BLV2019_Ubaldi.pdf

16:00 DAMIC

Speaker: Nuria Castello

CastelloMor_damic_BLV2019.pdf

16:20 DM constraints from neutron stars

Speaker: Raghuveer Garani

3DM BLV_garani.pdf

15:40 → 16:40 Exotics at Colliders

Convener: Dr Veronica Sanz

15:40 Searches for Dark Matter at the LHC

Speaker: Varun Sharma (University of Wisconsin Madison (US))

BLV2019-VarunSharma.pdf

16:00 Right-handed Neutrinos at the LHC

Speaker: Juan Helo (USM)

2Exotics TalkHelo.pdf

16:20 Searches for RPV SUSY at the LHC

Speaker: Rebecca Carney (Stockholm University (SE))

rcarney_RPV_exoticsSession_BLV2019.pdf

15:40 → 16:40 Neutrinos

Convener: Michel Sorel (IFIC)

15:40 Light sterile neutrino searches at reactors

Speaker: Jacob Lamblin (Universite de Grenoble)

BLV2019_lamblin.pdf

16:00 Light sterile neutrino searches at accelerators

Speaker: Georgia Karagiorgi

16:20 Collider Searches for Heavy Neutrinos: Lessons from the European Strategy Update

Speaker: Richard Ruiz (Universite Catholique de Louvain)

rruiz_BLV19_HeavyN_EuroStrategy.pdf

16:40 → 17:10 Coffee

17:10 → 17:40 “Towards a GUT SMASH”

Speaker: Andreas Ringwald (Deutsches Elektronen-Synchrotron DESY)

17:40 → 18:10 "Who Oders the Dark Matter?"

Speaker: Tsutomu Yanagida

2 Yanagida Who orders DM.pdf