Rencontre de Physique des Particules 2018 Paris, 11-13 April 2018

11 Apr 2018, 13:30 → 13 Apr 2018, 13:00 Europe/Paris

Charpak Lecture Hall (LPNHE)

Karim Benakli (CNRS)

The Rencontre de Physique des Particules (RPP) aims at gathering once per year the theoretical physicists working in France in the field of high energy physics.

The 2018 meeting was organised by the Institut Lagrange de Paris (LPTHE, LPNHE and IAP), Jussieu Campus, Sorbonne Université, Paris.

Organising committee:

Karim Benakli    (LPTHE)
Marco Cirelli      (LPTHE)
Michael Joyce    (LPNHE)
Joe Silk               (IAP)
Pietro Slavich     (LPTHE)

Location: 

The meeting was held at the Amphi Charpak:

Patio 22-33, Rez-de-chaussée (RC) - Niveau Saint Bernard (SB) - Porte 02 
Campus Jussieu
4, place Jussieu
75005 Paris

intro.pdf

Access to Amphi Charpak plan_acces_amphi_charpak-lpnhe-2016_10_20.pdf

Wednesday, 11 April

14:00 → 16:00 Théorie

14:00 Physics with jet substructure

Speaker: Gregory Soyez (IPhT, CEA Saclay)

substructure.pdf

14:30 High-energy QCD resummation effects at the LHC

Speaker: Dr Samuel Wallon

2.RPP-2018-SW.pdf

15:00 Probing jet-medium interaction via dijet, di-hadron, hadron-jet and photon-jet correlations

Speaker: Dr Shu-yi Wei (Ecole Polytechnique)

3.RPP-Shu-yi.pdf

15:20 Heavy quark phase diagram at two-loop order in perturbation theory

Speaker: Mr Jan Maelger (Ecole Polytechnique, Université Paris Diderot)

4.JMaelger.pdf

15:40 The nucleon axial charge from Lattice QCD

Speaker: Nicolas Garron

16:00 → 16:30 Pause café

16:30 → 18:00 Théorie

16:30 Impact of heavy neutral fermions on high-intensity observables

Speaker: Asmaa Abada

RPP-essai.pdf

17:00 Towards an identification of the flavour structure of new physics

Speaker: Björn Herrmann (LPSC Grenoble)

RPP 2018 Herrmann.pdf

17:30 Probing new physics with atomic spectroscopy

Speaker: Cedric Delaunay (LAPTh, CNRS)

isotopeshift_RPP.pdf

Thursday, 12 April

09:00 → 10:30 Théorie

09:00 Remarks about walking in gauge theories

Speaker: Vyacheslav Rychkov (CERN)

09:30 The breakings of « simple » N=2 theories

Speaker: Jean-Pierre Derendinger (Universitaet Bern (CH))

2.Derendinger_04_18.pdf

10:00 A more functional bootstrap

The conformal bootstrap aims to systematically constraint CFTs based on crossing symmetry and unitarity.
In this talk I will introduce a new approach to extract information from the crossing symmetry sum rules, based on the construction of linear functionals
with certain positivity properties. I show these functionals allow us to derive optimal bounds on CFT data. Furthemore I will argue that special extremal solutions to crossing form a basis for the crossing equation, with the functionals living in the dual space. As an application we reconstruct physics of QFTs in AdS2 from the properties of 1d CFTs.

Speaker: Miguel Fernandes Paulos (CERN)

3.Talk-RPP.pdf

10:30 → 11:00 Pause café

11:00 → 12:30 Théorie

11:00 Evaluation of the muon g-2 in the standard model: a status report

Speaker: Marc KNECHT (CNRS)

4.MK_RPP_2018.pdf

11:30 SM extensions valid up to infinite energy

Speaker: Alessandro Strumia (Universita & INFN Pisa (IT))

5.Strumia.agravity.pdf

12:00 Recent advances on neutrino flavor evolution in dense media and kilonova observation

Speaker: Cristina VOLPE (AstroParticle and Cosmology - APC /CNRS)

6.Volpe.pdf

14:15 → 16:00 Reunion BTP2

BTP2-2018.pdf

16:00 → 16:30 Pause café

16:30 → 18:00 Théorie

16:30 Testing a-theorem for spontaneously broken CFTs in d=6

Speaker: Francesco Sgarlata (SISSA)

7.Sgarlata.pdf

16:50 A highly protected global symmetry from quiver gauge symmetries

Speaker: Quentin BONNEFOY (Ecole Polytechnique - CPhT)

8.BONNEFOYRPP.pdf

17:10 Minimal constrained superfields and the Fayet-Iliopoulos model

Speaker: Yifan Chen (LPTHE, Paris)

9.RPPminimalCS.pdf

17:30 Beyond Positivity Bounds and the Fate of Massive Gravity

Speaker: Brando Bellazzini (CEA-Saclay)

10.Bellazzini.pdf

Friday, 13 April

09:00 → 10:20 Théorie

09:00 Reconciling B-decay anomalies with neutrino masses, dark matter and flavour violation

Speaker: Chandan Hati (LPC Clermont)

CH_RPP.pdf

09:20 A viable scenario to accommodate the B-physics anomalies

Speaker: Olcyr Sumensari (LPT Orsay)

Sumensari-RPP-2018.pdf

09:40 What can precision observables tell about the trilinear Higgs self coupling?

Speaker: Marco Fedele (INFN RM1)

RPP_Fedele.pdf

10:00 Two-loop QCD corrections to the lightest Higgs mass in the MSSM

Speaker: Sebastian Paßehr (Sorbonne Universite)

MSSM2L.pdf

10:20 → 10:50 Pause café

10:50 → 13:00 Théorie

10:50 Long-range interactions in dark matter phenomenology

Speaker: Kalliopi Petraki (Sorbonne Université)

5.Talk_2018_04_13_Paris_RPP_LongRangeInteractions.pdf

11:20 Quantum decoherence during inflation

Decoherence may play a role in the quantum-to-classical transition of primordial cosmological fluctuations. But if it occurs in the early Universe, the interaction with the environment that gives rise to it also changes observable predictions such as the power spectrum from inflation. I will show how this opens up the possibility to observationally probe quantum decoherence.

Speaker: Vincent Vennin (University of Portsmouth (UK), Institute of Cosmology and Gravitation)

6.vennin.pdf

11:50 R^2 Dark Energy in the Laboratory

Speaker: philippe brax (IPhT CEA Saclay)

7.RPP2018.pdf

12:20 Dark energy after GW170817

Speaker: Filippo Vernizzi (CEA)