XXXIII International (ONLINE) Workshop on High Energy Physics "Hard Problems of Hadron Physics: Non-Perturbative QCD & Related Quests"

Session

Evening session 4

4

9 нояб. 2021 г., 15:30

Conveners

Evening session 4: Non-perturbative Methods for Soft Hadron Scattering

• Anton Godizov (Logunov IHEP NRC KI)

53. The discovery of the odderon by the D0 and TOTEM collaborations

Christophe Royon

09.11.2021, 15:30

Non-Perturbative Methods for Soft Hadron Scattering

We will describe the odderon discovery by the TOTEM and D0 experiments. The analysis compares the p pbar elastic cross section as measured by the D0 Collaboration at a center-of-mass energy of 1.96 TeV to that in pp collisions as measured by the TOTEM Collaboration at 2.76, 7, 8, and 13 TeV. The two data sets disagree at the 3.4 sigma level and thus provide evidence for the t-channel exchange...

11. Hadron potential at large distances and fine structure of the diffraction peak at 13 TeV.

Prof. Oleg Selyugin (BLTPh JINR)

09.11.2021, 16:00

Non-Perturbative Methods for Soft Hadron Scattering

O.V. Selyugin
BLTPh JINR, 141980 Dubna, Russia

Many models predict that soft interactions will enter a new regime at the
LHC: given the huge energy, unitarization may play a crucial role as the central
part of the protons becomes black [1]. In most part, this depends on the
behaviour of the hadron potential at large distances. Our analysis of dσ/dt of
the TOTEM Collaboration data, carried...

31. Study of central exclusive production with the CMS Precision Proton Spectrometer (PPS)

Maria Margherita Obertino (Università di Torino)

09.11.2021, 16:30

Non-Perturbative Methods for Soft Hadron Scattering

The Precision Proton Spectrometer (PPS) is a subdetector of the CMS experiment that facilitates the study of Central Exclusive Production (CEP) in proton-proton collisions at the LHC, in standard data taking conditions, by measuring protons scattered at very small angles. It started operating in 2016 and collected more than 110 fb-1 throughout the LHC Run 2. In this talk the physics program of...

46. Central exclusive diffractive production of axial-vector f1 mesons in proton-proton collisions

Piotr Lebiedowicz (IFJ PAN, Cracow)

09.11.2021, 17:00

Non-Perturbative Methods for Soft Hadron Scattering

We discuss the central exclusive production (CEP) of f1 mesons in high-energy proton-proton collisions, where the diffractive pomeron-pomeron fusion process is expected to be dominant [1]. The theoretical results are calculated within the tensor-pomeron approach [2]. Two ways to construct the pomeron-pomeron-f1 coupling are discussed. First we consider phenomenological approach. We adjust the...

70. Prospect for new physics observation with the CMS Precision Proton Spectrometer (PPS)

Dr Nicola Turini (INFN and University of Siena )

09.11.2021, 17:30

Non-Perturbative Methods for Soft Hadron Scattering

The Proton Precision Spectrometer is exploring gamma gamma collisions at high energy opening up a different window where to search for new physics beyond Standard Model. I will present the PPS potentiality looking for anomalies either for exclusive CEP or invisible particles production.

65. Discussion 4

Prof. Vladimir Petrov (Logunov IHEP NRC KI)

09.11.2021, 18:00

Non-Perturbative Methods for Soft Hadron Scattering