Workshop on Pion and Kaon Structure Functions at the EIC

2 Jun 2020, 08:00 → 5 Jun 2020, 19:00 US/Eastern

Online

Craig Roberts (Nanjing University), Tanja Horn (Cath)

The Lagrangian masses of the quarks deliver only ≈ 1% of the proton mass, mp; and it is the emergence of the bulk of mp and the (very probably) related mechanism of confinement that are the key unresolved issues in hadron physics. In addressing these issues, the potential of the EIC is enormous. It promises to enable a quantitative understanding of the structure of hadrons, such as the nucleon, pion and kaon, in terms of quarks and gluons, thereby achieving key goals of modern physics. Recent synergistic advances in computation, experiment and theory reveal the prospects for a precise description of the one-dimensional structure of hadrons, exemplified by parton distribution functions (PDFs) and electromagnetic form factors, and of constructing three-dimensional images of hadrons, as expressed in Generalized Parton Distributions (GPDs) and Transverse-Momentum-Dependent Distributions (TMDs). Hence, today, there is an unprecedented opportunity to chart the in-hadron distributions of, inter alia, mass, charge, magnetization and angular momentum.

This workshop will canvass recent progress toward a coherent program of pion and kaon structure studies at the Electron-Ion Collider (EIC) that will deliver these maps. Their drawing demands an interplay between experiment and theory. Here, recent experimental developments have been matched by new theoretical insights and rapid computational advances. The progress triad is completed by high-level phenomenology in the form of global structure function fitting frameworks. Machine learning and exascale computing are both expected to play a material role in this march of progress.

This workshop aims to capitalize on the success of two prior meetings (PIEIC2017, PIEIC2018), which led to a White Paper, published in Eur.Phys.J.A 55 (2019) 10, 190. Its near-term goals are to expand this documentation, driving toward a significant new element in the EIC User Group Physics and Detector Handbook, and develop contributions as part of the ongoing Yellow Report Initiative.

Tuesday, 2 June

08:00 → 09:55 Tuesday morning 1: Setting the stage

Convener: Rolf Ent (Jefferson Lab)

08:00 Welcome and Introduction

Speaker: Abhay Deshpande (Stony Brook University)

00 Welcome-Pi-K-Structure-R.pdf

08:15 Emergence of Pion and Kaon Structure – Introduction

Speaker: Craig Roberts (Nanjing University)

2006EHMEIC.pdf

2006EHMEIC.pptx

08:40 Pion and Kaon Structure at an EIC – White Paper

Speaker: Tanja Horn (Cath)

CFNS-Pion-Kaon-Structure-Horn-nbk.pdf

CFNS-Pion-Kaon-Structure-Horn-nbk.pptx

09:05 Pion and Kaon Structure with AMBER @ CERN

Speaker: Oleg Denisov (INFN Torino)

Oleg CFNS.pdf

09:30 Pion, Kaon and Proton Mass Understanding

Speaker: Jianwei Qiu (Jefferson Lab)

Qiu-PionKaon.pdf

09:55 → 10:15 Break

10:15 → 13:10 Tuesday morning 2: Setting the stage – Sullivan and Drell-Yan methods

Convener: Tanja Horn (Cath)

10:15 EIC detector, Simulations, Experimental Possibilities

Speaker: Yulia Furletova (Jefferson Lab)

MesonStructure_EICdet_06_2020.pdf

10:40 Pion and Kaon structure functions at EIC

Speaker: Richard Trotta (The Catholic University of America)

mesonSF_CFNS.pdf

11:05 Pion/kaon structure study using Drell-Yan pair production

Speaker: Vincent Andrieux (UIUC)

Andrieux_EIC20200602.pdf

11:30 Discussion on complementarity of experiments and theoretical methods

Speaker: Paul E Reimer (Argonne National Laboratory)

ReimerPionKaonTheoryExperiment.pdf

Wednesday, 3 June

08:00 → 10:05 Wednesday morning 1: Large-x PDF and resummation

Convener: Craig Roberts (Nanjing University)

08:00 Two Issues concerning the Pion Structure Function

Speaker: Lei Chang (Nankai U.)

CFNSChang.pptx

08:25 Soft-gluon Resummation and the Pion Parton Distribution Function

Speaker: Werner Vogelsang (Tuebingen Univ., Institute for Theoretical Physics)

cfns_Vogelsang.pdf

08:50 Pion and Kaon Tagged DIS at JLab 12-GeV

Speaker: Rachel Montgomery (U. Glasgow)

Montgomery_PiK_EIC_030620.pdf

09:15 Pion Parton Distribution functions

Speaker: Minghui Ding (ECT*)

20200602_CFNS_Ding.pdf

09:40 The structure of Pion and Kaon from First-Principle Calculation in LQCD

Speaker: David Richards (Jefferson Laboratory)

cnfs_richards.pdf

10:05 → 10:25 Break

10:25 → 13:05 Wednesday morning 2: Large-x PDF and resummation

Convener: Jose Rodriguez Quintero

10:25 Perturbative QCD Analysis in a Fixed-W2 Framework

Speaker: simonetta liuti (universoty of virginia)

pionkaon_2020.pdf

pionkaon_2020.pptx

10:50 JAM pion PDF analysis including resummation

Speaker: Patrick Barry (North Carolina State University)

Barry.pdf

11:15 Global PDF fits at high x and perspectives on meson structure at EIC

Speaker: Timothy Hobbs (Southern Methodist University and EIC Center@JLab)

k603_pion.pdf

pion2020_v09a.pdf

11:40 Discussion on Resummation at Large-x

Speakers: Fredrick Olness (SMU), Pavel Nadolsky (Southern Methodist University)

discussion_v01.pdf

Thursday, 4 June

08:00 → 10:05 Thursday morning 1: Meson PDA and PDF

Convener: David Richards (Jefferson Laboratory)

08:00 Parton Distribution Functions and Beyond

Speaker: Khepani Raya Montano (Nankai U.)

CFNS Khépani.pdf

08:25 Pion and Kaon Valence quark distributions from lattice QCD

Speaker: Huey-Wen Lin (Michigan State University)

hwlin-PionKaonWorkshop.v3s.pdf

08:50 Pion/kaon gluon PDF study in charmonia and prompt photon production

Speaker: Charles-Joseph Naim (Saclay)

NAIM_MesonsGluonPDF.pdf

09:15 Calculation of Pion/Kaon-Nucleus Induced Drell-Yan Process from a Basis Light Front Approach

Speaker: Xingbo Zhao (IMP Lanzhou)

PionKaonStructureFunctionsEIC_200605.pdf

09:40 Asymmetries in Pion-Induced Drell-Yan with Polarized Protons

Speaker: Saman Bastami (UConn)

Pion-induced polarized Drell-Yan-CFNS2020.pdf

10:05 → 10:25 Break

10:25 → 13:05 Thursday morning 2: Meson PDA and PDF

Convener: Jorge Segovia (Universidad Pablo de Olavide)

10:25 Pion and Kaon Parton Distributions from their Light front Wave Functions

Speaker: Jose Rodriguez Quintero (U de Huelva)

SB-PpRQ.pdf

10:50 Structure of Mesons and its Impact on 3D Hadron Structure

Speaker: Cédric Mezrag (CEA Saclay-Irfu/DPhN)

mezrag_BNL.pdf

11:15 Exploring pion structure with Minkowski space dynamical model

Speaker: Tobias Frederico (Instituto Tecnologico de Aeronautica)

FREDERICO_WPKSF_EIC-2020.pdf

11:40 The Pion pdf: the transition from models to dynamical predictions in Minkowski space

Speaker: Giovanni Salme (INFN - Sezione di Roma)

gs_KP2020.pdf

12:05 Discussion on PDFs vs PDAs

Speaker: Craig Roberts (Nanjing University)

2006EHMEIC_Addendum.pdf

Friday, 5 June

08:00 → 10:05 Friday morning 1: Towards 3D Meson Structure

Convener: Oleg Denisov (INFN Torino)

08:00 Pion-induced Drell-Yan processes and Impact on Pion TMDs

Speaker: Alexey Vladimirov (Regensburg U)

Vladimirov.pdf

08:25 The transverse structure of the pion in momentum space

Speaker: Sabrina Cotogno (ECT Polytechnique)

PionTMDJune2020.pdf

08:50 Spatial and Momentum Imaging of the Pion and Kaon

Speaker: Chao Shi (Nanjing U.)

202006_PIEIC.pdf

09:15 LQCD 3D Meson Structure Prospects

Speakers: Colin Egerer, Raza Sufian

egerer_LQCD-3d-meson-structure-prospects.pdf

09:40 Pion off-shell electromagnetic form factors

Speaker: João Pacheco Bicudo Cabral de Melo (Universidade Cruzeiro do Sul)

pachecoeictalk20v10.pdf

10:05 → 10:25 Break

10:25 → 13:05 Friday morning 2: Towards 3D Meson Structure

Convener: Jianwei Qiu (Jefferson Lab)

10:25 Light meson form factors from exclusive measurements

Speaker: Stephen Kay (U. Regina)

Kay_Stephen_CFNS2020.pdf

10:50 Pion/kaon structure study in Primakoff reactions (polarizability)

Speaker: Andrei Maltsev (JINR/Dubna)

PrimakoffMeasurements_Maltsev_20200605.pdf

11:15 Further Prospects for Pion Structure Measurements at EIC

Speaker: Cynthia Keppel (Thomas Jefferson National Accelerator Facility)

Keppel_piK_EIC_wrkshp2020.pdf

11:40 Discussion on 3D Meson Structure Prospects

Speaker: Daria Sokhan

3DMesonStructureDiscussion_PionKaonWorkshop_5June20_Daria.pdf