Workshop on forward physics and QCD with LHC, EIC, and cosmic rays

20 Jan 2021, 08:00 → 23 Jan 2021, 16:00 US/Eastern

Hadron production at very forward rapidities is studied in high-energy proton-proton/ion scattering, lepton-proton/ion scattering, and cosmic ray physics and represents a topic of common interest to these fields. The forward region offers unique opportunities for exploring QCD in small-x and diffractive processes and presents specific experimental challenges in forward hadron detection.

The purpose of the workshop is to bring together experimentalists and theorists in high-energy collider experiments and cosmic ray physics, to review the status of forward physics, discuss the  opportunities and challenges, and realize synergies between the different fields. Discussions will focus on present experiments at the CERN LHC and RHIC BNL, the forward physics program with the future Electron-Ion Collider (EIC), and the connections with cosmic ray physics.

This workshop follows the series of meetings held in Nagoya, Japan (2015), Nagoya Japan (2017), Stony Brook, New York (2018), and Guanajuato, Mexico (2019).

The event will be hosted by Jefferson Lab and take place from January 20 through January 23, 2021. Because of the on-going pandemic situation, the meeting is expected to be held on-line.

 

The topics discussed during the workshop are:

• QCD at small-x, non-linear phenomena, and parton saturation
• Forward jets and high-p_T dissociation as a probe of saturation
• Diffractive and coherent processes on heavy and light nuclei
• Nuclear parton densities and shadowing
• Exclusive processes on proton and generalized parton distributions
• Spin/flavor and quantum number exchange in small-x processes
• Total cross sections and soft diffraction
• Cosmic ray physics and neutrinos
• Forward detection in collider experiments.

Wednesday 20 January

08:00 → 08:20 Introduction to workshop

Speaker: Christian Weiss (Jefferson Lab)

forward2021_intro.pdf

08:20 → 12:50 From pA at RHIC/LHC to eA at EIC: What can pA do to prepare for eA?

From pA at RHIC/LHC to eA at EIC: What can pA do to prepare for eA?

08:20 From pA to eA at EIC

Speaker: Matthew Sievert (University of Illinois at Urbana-Champaign)

Sievert.pdf

Sievert.pdf

Sievert.pptx

08:50 LHC/Alice results relevant to EIC

Speaker: Laure Marie Massacrier (Université Paris-Saclay (FR))

EIC.pdf

09:20 Proton-lead and photo nuclear collisions at LHC

Speaker: Michael Murray (The University of Kansas (US))

MurrayPPbPhotonPb.pdf

10:00 Break

10:20 Selected results on forward dijets

Speaker: Krzysztof Kutak (Instytut Fizyki Jadrowej Polskiej Akademii Nauk)

Jlab.pdf

10:50 Very forward phenomena in pA and UPC

Speaker: Mark Strikman (Penn State University)

veryforward.pdf

11:20 Discussion

forward2021_discussion1.pdf

13:00 → 16:00 Ultraperipheral pA/AA and photoproduction gamma-p/gamma-A

13:00 Photon Exchange

Speaker: Cristian Baldenegro Barrera (The University of Kansas (US))

photon_exchange_cbaldenegro.pdf

13:30 Photoproduction of vectors mesons

Speaker: Prof. Daniel Tapia Takaki (University of Kansas)

DTT- FWD workshop - Jan 2021.pdf

14:00 Break

14:30 Non-elastic contributions for the production of high-mass pairs

Speaker: Gustavo Gil Da Silveira (Universidade do Estado do Rio de Janeiro (BR))

talk.pdf

15:00 Discussion

Thursday 21 January

08:00 → 10:30 Cosmic rays: Joint physics studies with collider experiments, simulation tools

08:00 Cosmic ray physics experimental review

Speaker: Takashi SAKO (Institute for Cosmic Ray Research, University of Tokyo)

forward_QCD_CR_20210121_sako.pdf

08:30 pO run for cosmic rays and impact on muon puzzle

Speaker: Dr Hans Peter Dembinski (TU Dortmund)

talk.pdf

09:00 Cosmic Ray MC

Speaker: Dr Tanguy Pierog (KIT)

Pierog_CR_models_web.pdf

09:30 Discussion

10:30 → 15:30 Coherent and diffractive scattering on heavy and light nuclei

10:30 Break

11:00 Coherent processes on light ions

Speaker: sergio scopetta

scopetta_jlab_2021.pdf

11:30 Nuclear shadowing in coherent processes

Speaker: Vadim Guzey (NRC Kurchatov Institute PNPI (RU))

guzey_forward_2021.pdf

13:30 EIC forward detection

Speaker: Dr Alexander Jentsch (Brookhaven National Laboratory, EIC, STAR)

FF_Detectors_EIC_Alex_Jentsch_v3.pdf

FF_Detectors_EIC_Alex_Jentsch_v3.pptx

14:00 Photoproduction at EIC

Speaker: Justin Stevens (College of William and Mary)

stevens_forwardQCD.pdf

14:30 Discussion

Friday 22 January

08:00 → 15:55 Diffraction and low-x physics

08:00 Transverse momentum dependence of single spin asymmetries for very forward neutron production in polarized p+p collisions at sqrt(s) = 200 GeV

Speaker: Dr Benard Mulilo

Benard_JLAB_Workshop.pdf

08:30 CMS diffractive results

Speaker: Deniz Sunar Cerci (Adiyaman University (TR) - Istanbul University (TR))

DenizSunarCerci_2021.pdf

09:00 Elastic and diffractive proton—proton scattering at RHIC

Speaker: Dr Wlodek Guryn (Brookhaven National Laboratory)

ForwardPhysicsJlab.pdf

09:30 TOTEM/D0 odderon discovery

Speaker: Christophe Royon (The University of Kansas (US))

jlab2021.pdf

10:00 Discussion

11:00 Recent results in low-x (exclusive VM)

Speaker: Martin Hentschinski (Universidad de las Americas, Puebla)

fwd21.pdf

11:30 Gluon TMDs at small x

Speaker: Dr Francesco Giovanni Celiberto (ECT*/FBK Trento & INFN-TIFPA)

talk_FP_LHC_EIC_CR_2021_Celiberto.pdf

13:15 Effective field theory for heavy ions

Speaker: varun vaidya

REF.pdf

13:45 Factorization, resummation and CGC negative cross section problem

Speaker: Hao-yu Liu

14:05 Discussion

Saturday 23 January

08:00 → 12:20 Forward detectors: What exists? What can be built for EIC?: Detectors

08:00 FOCAL

Speaker: Constantinos Loizides (ORNL)

20211023_focal.pdf

08:30 AFP

Speaker: Jesse Liu (University of Chicago)

AFP-JLab-23-Jan-2021-JL.pdf

09:00 PPS

Speaker: Justin Andrew Williams (The University of Kansas (US))

jwilliams_pps.pdf

09:20 Break

09:50 Timing detectors

Speaker: Tommaso Isidori (The University of Kansas (US))

Timing detectors at the EIC_Isidori.pdf

10:20 Very forward hadron spectrometer

Speaker: Michael Albrow (Fermi National Accelerator Lab. (US))

FMS-HAD Cosmic 20210123.pdf

FMS-HAD Cosmic 20210123.pptx

10:50 FASER

Speaker: Felix Kling (SLAC)

EIC Workshop.pdf

11:20 Discussion

12:20 → 12:40 Workshop summary and close out