Rencontres de Physique des Particules 2020

29 Jan 2020, 10:00 → 31 Jan 2020, 23:25 Europe/Paris

L'édition 2020 de la Rencontre de Physique des Particules aura lieu à l'École polytechnique, du mercredi 29 janvier à 10h30 au vendredi 31 janvier à 16h00. Les inscriptions sont ouvertes jusqu'au 15 janvier 2020.

Nous avons prévu un certain nombre d'exposés de revue et une session de discussion, ainsi que l'organisation d'une assemblée générale sur les perspectives de notre discipline.

Nous vous invitons à soumettre une proposition d'exposé (20 minutes) dans la rubrique "Abstract submission". La date limite pour l'envoi des abstracts est fixée au 15 janvier 2020.

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The 2020 edition of the Rencontre de Physique des Particules will be held at École polytechnique, from Wednesday 29 January at 10.30am to Friday 31 January at 4pm. Registration will be open until January 15, 2020.

We have foreseen a number of review talks, a discussion session, as well as the organisation of a Round Table on the status and perspectives of our field.  

We invite you to submit an abstract for a talk (20 minutes) in the section "Abstract submission". The deadline for abstract submission is January 15, 2020.

This event is supported by CNRS Labex P2IO, GDR Intensity Frontier and GDR QCD.

 

Wednesday 29 January

10:00 Welcome coffee

1 Introductory remarks

Speaker: Local organizing committee

welcome.pdf

Beyond the Standard Model

Convener: Emilian Dudas (Ecole Polytechnique)

2 Searching for dark matter with complementary probes

Speaker: Francesca Calore (LAPTh, CNRS)

RPP2020_FCalore_compressed.pdf

3 Axions at the crossroads

Speaker: Dr Jeremie Quevillon (LPSC, Grenoble (CNRS))

quevillon_RPP2020.pdf

4 Using noise fields to probe supersymmetry

Speaker: Dr Stam Nicolis (Institut Denis Poisson (UMR 7013) Tours)

RPP2020.pdf

5 The Trouble with Hubble: signs of new physics?

Speaker: Dr Vivian Poulin (LUPM, CNRS, France)

RPP_2020.pdf

12:20 Lunch

6 Welcome address

Speaker: Benoît Deveaud

QCD

Convener: Cédric Lorcé (Ecole polytechnique)

7 Thermodynamics and transport properties of the quark-gluon plasma: recent advancements

Speaker: Jacopo Ghiglieri (Centre National de la Recherche Scientifique (FR))

ghiglieri_RPP20.pdf

8 Gluon TMDs in electroproduction

Speaker: Pieter Taels

RPP Pieter Taels 2020 v3.pdf

9 Extraction of GFFs from GPDs

Speaker: Dr Arkadiusz Trawiński

Trawinski_RPP.pdf

10 Expression for the potential angular momentum within the scalar diquark model

One of the challenges of both nuclear and hadronic physics is to fully
understand the structure of nucleons and nuclei through the measurements
of its structure functions. In particular, possible future experiments at
the EIC are aimed to understand the origin of the spin of the proton. This
requires a proper decomposition of the nucleons total angular momentum
into an orbital motion and intrinsic spin. The most common decompositions
of angular momentum are the Jaffe-Manohar (canonical) and Ji (kinetic)
decompositions, which differ by the so-called "potential angular momentum"
and that depend on how the contributions are attributed to quarks and
gluons.

Even if some lattice calculations has shown that difference between the
decompositions is non-zero, we justify a non-vanishing potential angular
momentum using perturbation theory within a simple scalar diquark model at
two-loop level, and motivate the interpretation of such a difference as
originating from the torque exerted by initial or final state interactions
on the struck quark.

Speaker: Arturo Amor (Ecole polytechnique)

RPP2020_A_AMOR.pdf

16:05 Coffee break

11 Table ronde

Speaker: Bureau des théoriciens de physique des particules

Thursday 30 January

QCD

Convener: Cyrille Marquet (CPHT - Ecole Polytechnique)

12 Overview of (selected) recent results using Lattice QCD

Speaker: Antoine Gerardin (CPT Marseille)

gerardin_RPP.pdf

13 Developments in LQCD studies of heavy tetraquarks

Speaker: Anthony Sebastian Francis (CERN)

afrancis-paris-tetratalk.pdf

14 Signatures for the BCS phase in QCD at nonzero isospin asymmetry

Speaker: Francesca Cuteri (J. W. Goethe Universität)

cuteri.pdf

10:55 Coffee break

Flavour physics

Convener: Sebastien Descotes-Genon (Laboratoire de Physique Théorique d'Orsay)

15 Experimental overview of flavour physics

Speaker: Francesco Polci (Centre National de la Recherche Scientifique (FR))

RPP2020.pdf

16 Probing the flavor of New Physics with dipoles

Speaker: Luiz Vale Silva

Vale_Silva_5.pdf

17 Angular analysis of the rare decay Λ𝑏→Λ(1520)(→𝑁𝐾)ℓ+ℓ−

Speaker: Martin Novoa Brunet (IJCLab)

Talk_at_RPP_January_2020_Study_of_Lambda_b_to_KN_ll_decay.pdf

12:50 Lunch

Electroweak

Convener: Francois Gelis

18 Electroweak corrections for LHC physics

Speaker: Hua-Sheng Shao

Shao_RPP2020.pdf

QCD

Convener: Francois Gelis

19 Basic Properties of Generalized Parton Distributions

Speaker: Cédric Mezrag (CEA Saclay)

mezrag_2020RPP.pdf

20 Gravitational form factor constraints for states of arbitrary spin

Speaker: Peter Lowdon

RPP2020.pdf

21 Unbiased determination of DVCS Compton Form Factors and consequences for 3D nucleon structure

Speaker: Hervé MOUTARDE

moutarde-rpp-palaiseau-2020-01-30.pdf

16:20 Coffee break

QCD

Convener: Urko Reinosa (CPHT - Ecole Polytechnique - CNRS)

22 Parton distribution functions from Lattice QCD

Speaker: Dr Savvas Zafeiropoulos (CPT Marseille)

RPP2020_Zafeiropoulos.pdf

23 Primordial fluctuations in high-energy nuclear collisions

Speaker: Giuliano Giacalone (Université Paris-Saclay)

rpp.pdf

Formal aspects

Convener: Urko Reinosa (CPHT - Ecole Polytechnique - CNRS)

24 Two-loop ghost-gluon vertex in the Curci-Ferrari model

Speaker: Mr Nahuel Barrios (Universidad de la República)

talk_v3.pdf

25 Landau-Khalatnikov-Fradkin transformation and the mystery of even 𝜁-values in Euclidean massless correlators

Speaker: Sofian Teber (Sorbonne University)

teber-rpp20.pdf

19:00 Reception

Friday 31 January

Beyond the Standard Model

Convener: Stephane Lavignac (IPhT Saclay)

26 A New Concept for the Detection of Axion Dark Matter

Speaker: Raffaele Tito Dagnolo (Univ. of California San Diego (US))

dagnolo_RPP.pdf

27 Multiple point principle in the general Two-Higgs-Doublet model

Speaker: Lohan Sartore (LPSC)

MPP_THDM_RPP20.pdf

28 Light dark sector EFT and long-lived states

Speaker: Luc Jean Marie Darmé (INFN - National Institute for Nuclear Physics)

Darme_RPP.pdf

10:55 Coffee break

Formal aspects

Convener: Karim Benakli (Centre National de la Recherche Scientifique (FR))

29 Modern developments in scattering amplitudes

Speaker: Piotr Tourkine (Centre National de la Recherche Scientifique (FR))

review-RPP2020.pdf

30 Discussion avec le directeur de l'IN2P3

Speaker: Reynald Pain (IN2P3)

12:30 Lunch

Beyond the Standard Model

Convener: Michele Frigerio (Laboratoire Charles Coulomb)

31 Cosmology With a Very Light $L_\mu − L_\tau$ Gauge Boson

Speaker: Mr Mathias Pierre (IFT-UAM Madrid)

RPP2020(1).pdf

32 Particle dark matter searches through cross-correlations between gamma-rays and neutral hydrogen intensity mapping

Dark matter in cosmic structures is expected to produce signals
originated from its particle physics nature, among which the electromagnetic
emission represents a relevant opportunity, whose intensity is directly linked
to the amount of dark matter in galaxies and clusters. On the other hand, this
emission is very faint, thus contributing only at the unresolved level. These
unresolved radiation backgrounds are isotropic at first order, but must
exhibit a degree of anisotropy since they originate from clustered dark matter
haloes. This fact implies also that the anisotropies in the radiation fields
should be correlated to the same matter distribution in the Universe.
In this talk we propose to exploit this correlation by using the intensity
mapping of the 21cm emission line of neutral hydrogen as the tracer of matter
distribution, and gamma-rays as the tracer of particle dark matter
annihilation. Intensity mapping has the advantage of not being flux limited in
the measurement of the matter distribution (as instead galaxy catalogs are)
since it does not need to identify individual galaxies, and offers excellent
redshift information being a line emission. We show the expected level for
this cross-correlation signal and we derive forecasts for the study of this
novel signature through the combination of Fermi-LAT gamma-rays data and SKA
intensity mapping capabilities.

Speaker: Elena Pinetti

Pinetti_cross_correlation.pdf

Closing talk

Convener: Stéphane Munier (CNRS and École polytechnique)

33 Towards EeV Astronomy: catching the sources of ultra-high-energy cosmic rays

Speaker: Kumiko Kotera (IAP)

19_01_31_RPP_kotera-compressed.pdf