Towards improved hadron femtography with hard exclusive reactions

Jul 18, 2022, 7:00 AM → Jul 22, 2022, 7:00 PM US/Eastern

Auditorium 130, Hahn Hall North Wing (Virginia Tech)

Alexandre Camsonne (JLab), Astrid Hiller Blin (JLab), Charlotte Van Hulse, Marie Boër (Virginia Tech)

The aim of the workshop is to provide an overview of the current status of the experimental and theoretical studies, including lattice QCD, of exclusive reactions and to discuss future possible exclusive measurements as well as needed theoretical studies. In particular, we will focus on the study of hard exclusive meson production and a sample of Compton-like processes, other than DVCS, in lepton-hadron and hadron-hadron collisions, to access generalised parton distributions and the mass and pressure distribution of hadrons. We will also discuss the study of double Drell-Yan, dihadron and dijet production, which is sensitive to Wigner distributions. Unless conditions prevent it, the workshop is foreseen to be attended in person at the University of Virginia Tech in Blacksburg, VA, USA.

Thank you to all the participants

Organizing committee: Marie Boër, Alexandre Camsonne, Astrid Hiller-Blin, Charlotte Van Hulse

Local organizing committee: Debaditya Biswas, Mahmoud Gomina, Jocelyn Robbins, Brannon Semp, Erik Wrightson, Melinda Yuan

Administrative support: Lorrie Mitchell, Jacqueline Woodyard

Virginia Tech Physics Department chair: Mark Pitt

 

This project is supported by the Initiatives Fund Program, a JSA commitment, to support programs, initiatives, and activities that further the scientific outreach, promote the science, education and technology of Jefferson Lab and benefit the Lab’s extended user community in ways that complement the Lab’s basic and applied research missions.

This workshop is supported by the Virginia Tech physics department, JSA, the Center for Neutrino Physics at Virginia Tech, CAEN electronics and the PArtonic Structure of the HAdrons group at VT.

firstcircular2022.pdf

Monday, July 18

8:10 AM → 8:30 AM Badge, Registration

8:30 AM → 9:00 AM Welcome: Introduction, important information and goals

Convener: Marie Boër (Virginia Tech)

WelcomeTalk_VTworkshop.pdf

9:00 AM → 10:30 AM Theory

9:00 AM General theory exclusive reactions (Simonetta Liuti, in person)

Speaker: Liuti Simonetta (UVA)

liuti_24GeV_July722.pdf

9:30 AM GPDs from exclusive photoproduction (Jianwei Qiu, in-person)

Speaker: Jianwei Qiu (JLab)

10:00 AM Exploring Transition GPDs at JLab12 and EIC (Christian Weiss, remote)

Speaker: Christian Weiss (JLab)

weiss22_vatech22.pdf

10:30 AM → 11:05 AM coffee break / Registration and badge

11:05 AM → 12:45 PM Compton-like: Fits, DVCS and beyond

VT_DDVCS_2022_Camsonne.pdf

11:05 AM GPD programs with SBS, JLab Hall A (Erik Fuchey, in person)

EFuchey_VTexclusive2022.pdf

11:30 AM GPD extraction using the UVA model (Brandon Kriesten, in person)

11:55 AM GPD fits using AI (Zulkaida Akbar, in person)

12:15 PM Multichannel GPD fits (Kresimir Kumerici, in person)

kumericki-virginia22.pdf

12:45 PM → 2:45 PM lunch break

2:45 PM → 4:00 PM Compton-like: TCS

Wagner_TCS_VT_0722.pdf

2:45 PM Accessing TCS in ep and hh collisions (Jakub Wagner, in person)

Wagner_TCS_VT_0722.pdf

3:15 PM Transversely polarized TCS at JLab Hall C using NPS and CPS (Vardan Tadevosyan, in person)

HC_TCS-transpol.pdf

3:40 PM Fits of Compton Form Factors from TCS versus DVCS (Brannon Semp, in person)

4:00 PM → 4:30 PM coffee break

4:30 PM → 5:15 PM Compton-like: DDVCS

VT_DDVCS_2022_Camsonne.pdf

4:30 PM Opportunities for DDVCS at JLab with SoLID experiment (Hall A) (Alexandre Camsonne, in person)

VT_DDVCS_2022_Camsonne.pdf

4:55 PM Prospects for measuring DDVCS at JLab Hall C, and motivations (Jocelyn Robbins, Melinda Yuan, in person)

5:15 PM → 6:15 PM Round Table: Compton-like reactions (Stepan Stepanyan, Jakub Wagner)

6:30 PM → 9:00 PM Reception at Smithfield

Tuesday, July 19

9:00 AM → 11:05 AM HEMP: high energy & theory

9:00 AM Exclusive reactions at LHCb (Charlotte Van Hulse - in person)

Hadronfemto_charlotte.pdf

9:25 AM Alice results on UPCs and peripheral collisions (Alexandr Bylinkin - remote)

Bylinkin_Virginia_2022_ALICE_final_v4.pdf

9:50 AM GPDs from hard exclusive reactions with gamma-meson pair production (Saad Nabeebaccus - remote)

virginia-tech-GPD.pdf

10:15 AM Generalized parton distributions through universal moment parameterization: zero skewness case (Yuxun Guo, in person)

GPDs through universal moment parameterization VT.pdf

10:35 AM Exclusive and diffractive quarkonium production at high energy (Beatriz Gay Ducati)

virginia_MBGD_2022.pdf

11:05 AM → 11:35 AM coffee break

11:35 AM → 1:05 PM HEMP

11:35 AM Deeply Virtual Exclusive Vector-Meson production at COMPASS (Andrzej Sandacz, remote)

Speaker: Andrzej Sandacz (National Centre for Nuclear Research (PL))

sandacz-Virginia-Tech-2022.pdf

12:05 PM postponed to Friday

12:35 PM Exclusive Physics Program at EIC (Elke Aschenauer, in person)

Diffractive Physics from RHIC to EIC

1:05 PM → 2:50 PM lunch break

2:50 PM → 4:20 PM HEMP

2:50 PM Prospects for exclusive J/psi and Upsilon production at EIC kinematics (Tyler Schroeder, in person)

VT Presentation.pdf

3:20 PM Overview of Hard exclusive measurements at JLab Hall B (Stepan Stepanyan, in person)

Speakers: Stepan Stepanyan (Jefferson Lab), Stepan Stepanyan (JLab)

Stepanyan-femto2022_vt.pdf

3:50 PM Exclusive lepton pair production at JLab Hall B with CLAS12 (Rafayel Paremuzyan, in person)

VT_Paremuzyan.pdf

4:20 PM → 4:50 PM coffee break

4:50 PM → 6:00 PM Round Table: Hard Exclusive Meson Production (Elke Aschenauer, Beatriz Gay Ducati, Kresimir Kumericki)

Wednesday, July 20

8:30 AM → 10:35 AM Meson and nucleon Structure

8:30 AM Pion distribution amplitude at physical point using leading-twist expansion of quasi-DA matrix element (Xiang Gao, in-person)

Exclusive2022_DA.pdf

8:55 AM Pion Structure at JLab Hall C (Dave Gaskell, in-person)

fpi_vt.pdf

9:20 AM Kaon Structure at JLab Hall C (Richard Trotta, in person)

KaonLTHallC_VTech2022.pdf

9:45 AM Threshold quarkonium production (Xiangdong Ji, in person)

VT-Quarkonium-ji.pdf

10:10 AM Near threshold heavy quarkonium production (Feng Yuan, in person)

HeavyQuarkoniumThreshold_VT.pdf

10:35 AM → 11:10 AM coffee break

11:10 AM → 12:45 PM Nucleon Structure: Quarkonia near-threshold production: experiment

11:10 AM Nucleon mass decomposition (Andreas Metz, remote)

VT_2022_nucleon_mass.pdf

11:35 AM New results on exclusive J/psi photoproduction near threshold with GlueX (Lubomir Pentchev, in person)

LPentchev_Jpsi_HardExclusive.pdf

12:00 PM Exclusive J/psi near threshold and pentaquark search at JLab Hall C (Sylvester Joosten, in person)

20220720-VT-HallC-Jpsi.pdf

12:25 PM Polarized near-threshold J/psi opportunities at JLab Hall C (Erik Wrightson)

ErikWrightson_07.20.22_J_Psi_OpportunitiesTalk.pdf

12:45 PM → 1:45 PM Round Table: threshold production & meson structure (Dave Gaskell, Feng Yuan)

1:45 PM → 2:30 PM sandwich lunch

2:30 PM → 8:00 PM Social events

Sign in in the Auditorium on the white board. We are proposing 2 level of hike, a tour of the Blue Ridge with stop at winery, going to Roanoke for a brewery and/or museum tour, or any activity you suggest that has more than 4 people. Guests are very welcome and encouraged to come with you.

8:00 PM → 10:30 PM Barbecue

Come to the Duck Pound, we are setting a BBQ for all to join after the social event. We should start around 6 or 7 PM. We plan to start the food around 7 PM. We have a mix of meat, vegetables, fruits, ... We are not allowed to provide alcoholic drink and therefore will provide a selection of soda and water.

Thursday, July 21

8:00 AM → 10:10 AM GTMDs, jets, double DY

8:00 AM Exclusive Drell-Yan Process for GPDs at J-PARC E50 (Wen-Chen Chang, remote)

20220721_ExclusiveDYatJPARC_wchang.pdf

8:25 AM Physics at the new pi20 beamline in J-PARC (Natsuki Tomida, remote)

Exclusive workshop7.pdf

8:50 AM Exclusive dijet photoproduction at CMS (Alexandr Bylinkin - remote)

Bylinkin_Virginia_2022.pdf

9:15 AM Exclusive double quarkonium production from low to medium x (Marat Siddikov, remote)

MSiddikov_ExclusiveDoubleQuarkoniaProduction.pdf

9:40 AM Primary experimental observables to focus on for access to GTMDs (Yoshitaka Hatta, in-person)

virginiaTech.pdf

10:10 AM → 10:40 AM coffee break with remote participants

10:40 AM → 12:25 PM theory: interpretations and progress

10:40 AM Spin interpretations and parity violations (Oleg Teryaev, remote)

11:10 AM Photo- and electroproduction of pions and eta mesons at twist-3 (Kornelija Passek-Kumericki, remote)

Virginia2022-passek.pdf

11:35 AM Twist 3 GPD models (Fatma Aslan, in-person)

VT.pdf

12:00 PM Twist 3 GPDs and force distribution in hadrons (Matthias Burkhart, remote)

12:25 PM → 2:00 PM lunch break

2:00 PM → 3:40 PM Lattice, computing: Lattice QCD

2:00 PM Time reversal-odd effects in QCD and beyond (Dylan Manna, in person)

Dylan Manna T-odd effects in QCD and beyond QCD Evolution 2022 May 9 - 13 University of Virginia.pdf

2:25 PM Accessing GPDs from lattice QCD (Martha Constantinou - in person)

Exclusive_Processes_2022_Constantinou.pdf

2:50 PM Exploring twist-3 PDFs and GPDs from lattice QCD (Shohini Bhattacharya, in person)

ExclusiveWorkshop_2022SB.pdf

3:15 PM From PDFs to GPDs on lattice QCD (Yong Zhao, in person)

VT_2022_yzhao.pdf

3:40 PM → 4:40 PM Round Table: theory, interpretations, computing, lattice (Shohini Bhattacharya, Martha Constantinou, Yoshitaka Hatta)

5:00 PM → 10:00 PM social dinner: Dinner at the Transportation Museum in Roanoke

We will leave from Hahn Lot at 5 PM. Please sign up for your shuttle, we have 2 minivans and car. Program: visiting the museum (3 exhibitions; cars, train, airplanes...), we will have drinks served in the museum (car part) followed by a sit in buffet. The museum stays open to us until 10 PM. We can enter as early as 5 PM. Your workshop badge is your card to access the museum and the buffet. If you have guest, they are coming for free, but need to register as well, and will be provided with a badge. People under 21 need to check up with organizers since the place is serving wine. Lost badge? we will give you a new one.

5:00 PM Shuttle to Transportation museum

5:45 PM Visit and dinner, drinks

9:00 PM Shuttle back to Blacksburg

Friday, July 22

8:00 AM → 10:00 AM Future: JLab future

8:00 AM Exclusive Physics program with SoLID, JLab Hall A (Zhiwen Zhao, in person)

solid_exclusive_2022_07_vt_zwzhao.pdf

8:30 AM Hall C compact detector (Nilanga Liyanage, in-person)

Liyanage_VT_2022.pdf

9:00 AM Positron beam at JLab (Eric Voutier, in person)

IHF-0722-EV.pdf

9:30 AM JLab at 24 GeV (Patrizia Rossi, in person)

Rossi_ VaTECHxpdf.pdf

10:00 AM → 10:40 AM coffee break

10:40 AM → 12:40 PM Future: high energy/colliders

10:40 AM Hard Exclusive production of neutral pions at COMPASS (Oleg Kousnetsov - remote)

Kouznetsov_talk_22.07.pdf

11:10 AM Meson structure EIC (Tanja Horn)

11:40 AM EIC (Rolf Ent, in person)

EIC_VATech_072222.pptx

12:10 PM EICC (Zhihong Ye, remote)

EIC_China.pdf

12:40 PM → 1:40 PM Round Table: Future Experiments (Rolf Ent, Nilanga Liyanage)

1:40 PM → 2:00 PM Closeout

Convener: Marie Boër (Virginia Tech)

closeout.pdf