California EIC Consortium Collaboration Meeting 2024

29 Feb 2024, 09:00 → 1 Mar 2024, 14:10 US/Pacific

Glen Mor Meeting Room (University of California, Riverside)

Miguel Arratia (University of California, Riverside), Kenneth Barish (UC Riverside)

We are happy to announce that the California EIC Consortium Collaboration Meeting will be held at the University of California, Riverside on February 29-March 1, 2024. It will commence at 9 AM on  Thursday and conclude at 12:00 PM on Friday.

This is a great opportunity for researchers, scientists, and students in the field of Electron-Ion Collider (EIC) to come together and share their latest findings, as well as collaborate on new projects. We hope to see you there!

Meeting room: The meeting will be held in the "Glen Mor Meeting Room K106/K108". To get there, please see the directions tab.

Thursday, 29 February

09:00 → 10:30 Thursday Morning: Overviews

09:00 Welcome

Speaker: Miguel Arratia (University of California, Riverside)

09:10 UCR Status & Plans

Speaker: Miguel Arratia (University of California, Riverside)

UCR update.pdf

09:30 UCLA Status & Plans

Speakers: Huan Huang (UCLA), Zhongbo Kang (UCLA)

EMcal_UCEIC_UCLA-Feb2024.pdf

09:50 UCB & LBNL Status & Plans

Speaker: Barbara Jacak (UC Berkeley and LBNL)

Berkeley_report_Feb24.pdf

10:10 UCD Status & Plans

Speaker: Daniel Cebra (University of California, Davis)

UCD_EIC_February_2024_v2.pdf

10:30 → 11:00 Coffee Break

11:00 → 12:40 Thursday Morning: Calorimetry 1

11:00 Proton-going ECal design and simulations

The proton-going Electromagnetic Calorimeter (pECal), situated in the Hadron Endcap alongside the forward Hadronic Calorimeter in the ePIC detector configuration, plays a crucial role in the ePIC scientific program for jet and photon/electron measurements. With an inner radius of 30 cm and an outer radius of 170 cm, the pECal spans a pseudorapidity range from 1.4 to 3.5.

The pECal's primary function is to facilitate the identification of $\pi^0$ decay photons up to 50 GeV and the reconstruction of jets with good hadron compensation in the hadron-going direction. Utilizing a sampling calorimeter design with a W-powder/ScFiber (W/ScFi) structure, initially developed at UCLA, this compact configuration efficiently fits within limited space constraints. Notably, the pECal boasts good energy resolution and fine granularity, meeting the stringent requirements of the ePIC scientific program.

During this presentation, I will show the pECal design and discuss the capabilities of the fECal in differentiating $\pi^0$ decay photons and identifying heavy-flavor jets from current simulations and machine-learning techniques.

Speaker: Zhongling Ji (UCLA)

ZhonglingJi_pECal

11:20 Measurement of characteristics of lightguides for forward EMcal for ePIC detector

Speaker: YUNSHAN CHENG (UCLA)

2024_EIC_colloquium_v3.pdf

11:40 Light yield studies for prototype calorimeter layers

Speaker: Miguel Rodriguez (UCR)

EIC Constortium(1).pdf

12:00 Design and Performance of Insert-like ZDC

Speaker: Ryan Milton (UCR)

RyanMilton_02_29_Consortium.pdf

12:40 → 14:10 Lunch

14:10 → 15:25 Thursday Afternoon: Tracking 1

14:10 t-reconstruction in the ZDC

Speaker: Barak Schmookler (UC Riverside)

zdc_022924.pdf

14:30 UC Berkeley Tracking Updates

I will give some updates on the work done on EICRecon track reconstruction by the Berkeley group.

Speaker: Beatrice Liang-Gilman (member@berkeley.edu;student@berkeley.edu;faculty@berkeley.edu;employee@berkeley.edu)

UCConsortium_TrackingUpdate_Feb29.pdf

15:05 Tracking in presence of backgrounds

Speaker: Benjamen Sterwerf (staff@berkeley.edu;employee@berkeley.edu;affiliate@berkeley.edu;member@berkeley.edu)

Admixed Background Effects on Tracking Reconstruction(Riverside).pptx

15:25 → 15:55 Coffee Break

15:55 → 17:15 Thursday Afternoon: Theory & Physics Performance Studies

15:55 Update on u-channel EIC Analyses

Backward ($u$-channel) meson production and DVCS results in baryons undergoing large momentum transfers. These reactions are interesting for their potential to provide insight on the mechanisms behind baryon stopping, and the nature of the baryon number inside the proton. We report an update on various $u$-channel physics simulations for the EIC, including a short summary report on our backward DVCS paper, and the status of several physics benchmarks in preparation for the ePIC TDR.

Speaker: Zachary Sweger (University of California, Davis)

Sweger.pdf

16:15 Jets as precision probes in Semi-Inclusive DIS events at the future Electron-Ion Collider

To explore the potential Jet observable as a probe for the three-dimensional (3D)
hadron structure encoded in transverse-momentum-dependent parton-distribution functions (TMD PDFs) and fragmentation functions (TMD FFs).

Speaker: Nihal Gozlukluoglu (student@csun.edu;exl student@csun.edu;applicant@csun.edu)

Jets_as_precision_probes_in_DIS.pdf

16:35 Transverse energy-energy correlators in the Color-Glass Condensate

Transverse energy-energy correlators (TEECs) are event-shape observables that can be used to study QCD by examining angular correlations between produced particles. As they are weighted by the energy of the particle, they are an infrared-safe observable that can be calculated to high accuracy. This makes TEECs a potentially useful tool in extracting the target structure in DIS and studying physics in the small-$x$ regime where saturation effects are believed to be important.

In this talk, we will present results for TEECs in back-to-back electron-hadron production in the small-$x$ region of DIS [1]. We establish a factorization theorem given in terms of the hard function, soft function, TEEC jet function, and quark distribution. The quark distribution is written in terms of the small-$x$ dipole amplitudes which incorporate the saturation effects. By considering both proton and nuclear targets in DIS, we demonstrate that TEECs can be a powerful tool to understand gluon saturation and nuclear modification at the upcoming Electron-Ion Collider.

[1] Zhongbo Kang, Jani Penttala, Fanyi Zhao, Yiyu Zhou, arXiv:2311.17142 [hep-ph]

Speaker: JANI PENTTALA (UCLA)

2024_EIC_Consortium_Penttala.pdf

16:55 Global Extraction of Nuclear TMDs

Kang group's latest nuclear TMDs global extraction based on Drell-Yan datasets & SIDIS datasets from JLAB,HERMES

Speaker: CONGYUE ZHANG (UCLA)

Nuclear-TMDs 2024_01_29 (1).pdf

18:30 → 20:30 Reception dinner

Friday, 1 March

09:00 → 10:15 Friday Morning: Calorimetry 2

09:00 Parasitic test of Insert Prototype in the STAR Hall

Speaker: Sean Preins (University of California, Riverside)

CALI Prototype RHIC Test.pdf

09:20 Installation of prototype in STAR Hall, and hodoscope tracking

Speaker: Peter Carney (Univeristy of California, Riverside)

GenII Prototype Construction-1.pdf

GenII Prototype Construction(1).pptx

09:40 Simulations for test at STAR Hall

Speaker: Weibin Zhang (UC Riverside)

20240301--Gen_II_CALI.pdf

10:00 Studies of scintillator tiles with cosmic rays

Speaker: Mia Macias

California EIC Consortium Collaboration Meeting 2024.pdf

Studies of scintillator tiles with cosmic rays

10:15 → 10:45 Coffee Break

10:45 → 12:05 Friday Morning: Tracking/Calorimetry

10:45 Minimum-Ionizing Particle (MIP) Analysis Results

Speaker: Chase Owen (UC Riverside)

EIC MIP Analysis Results.pdf

11:00 ePIC SVT Air Cooling Studies - Status Update

The LBNL and UC Berkeley groups have been studying the feasibility of air cooling the Silicon Vertex Tracker with different air distribution materials. I will present a status update on this work.

Speaker: Tyler Hague (Berkeley Lab)

Air Cooling Update.pdf

11:20 Status of realistic-seeded tracking in ePIC

This would basically be similar to the TIC meeting summary talk I'll give on Monday Feb. 26th. Talk will be about 20 minutes long.

Speaker: Barak Schmookler (UC Riverside)

tracking_030124.pdf

11:45 Reconstruction of Nuclear Fragments at IP8

Speaker: JiaJun Huang (Student@ucr.edu)

Fission and Photon @ EIC.pptx

12:05 → 12:15 Closing Remarks

Speaker: Miguel Arratia (University of California, Riverside)

12:15 → 13:45 Lunch