Electroweak and BSM physics at the EIC

6 May 2020, 08:00 → 7 May 2020, 19:00 US/Eastern

Online

Ciprian Gal (Stony Brook University), Michael Gerike (University of Manitoba), Wouter Deconinck (University of Manitoba), Yulia Furletova (Jefferson Lab)

As part of the third physics pillar (“Physics at the Luminosity Frontier”) of the original Electron-Ion Collider (EIC) white paper, Electroweak Physics gives us the possibility to study topics that have a much broader appeal in the Physics community.

Nearly a decade ago at a workshop at William & Mary, the opportunities for studying electroweak physics at the EIC were explored. At that time the parameters of the collider were still in flux and the detector design still in early stages. Since then the focus of the EIC community has largely been on QCD and nuclear processes. Now is an opportune time to re-evaluate the prospects for studying electroweak processes at the EIC. The goal of the
proposed adhoc meeting would be to reinvigorate the efforts of the electroweak community in the detector development for the electron-ion collider and to re-engage with the broader EIC community so that we can take full advantage of the recent developments (in particular in simulations working group).

Due to the COVID-19 virus, we will hold the workshop online using Zoom (password via email to registered participants).

This event is part of the CFNS workshop/ad-hoc meeting series. See the CFNS conferences page for other events.

Wednesday, 6 May

1 Welcome

Speaker: Abhay Deshpande (Stony Brook University)

00 Welcome.pdf

2 Broad overview of EIC

Speaker: Douglas Higinbotham (Jefferson Lab)

EIC-Update-V2.pptx

3 EIC accelerator overview

Speakers: Christoph Montag (BNL), Christoph Montag (BNL)

EIC-accelerator-Montag.pptx

4 Polarimetry Overview

Speaker: Dave Gaskell

eic_polarimetry_overview.pdf

10:30 Streching break

5 HERA/Collider(ep) physics for fixed target people

Speaker: Stefan Schmitt (DESY)

2020-05-06_eic-workshop.pdf

6 Experience of EW and BSM physics at HERA and lessons for the EIC

Speaker: Elisabetta Gallo (DESY and University of Hamburg)

EIC_EWKandBSM_fromHERA_ElisabettaGallo.pdf

7 Impact of EIC on LHC

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

HOBBS_EW-EIC20.pdf

12:30 Lunch

8 BSM and EW with positrons at EIC

Speaker: Wally Melnitchouk (Jefferson Lab)

Melnitchouk.pdf

9 Theory of lepton flavor violation

Speaker: Sonny Mantry (University of North Georgia)

EIC-Electroweak-and-BSM-physics-May-2020.pdf

10 Charged lepton flavor and number violation

Speaker: Jinlong Zhang (Stony Brook University)

CLFV_EIC_Zhang.pdf

15:00 Streching break

11 C1q and C2q with SoLID

The SoLID Spectrometer has been designed at JLab in order to provide a high luminosity and high-acceptance device for studies of parity-violation in deep inelastic scattering (PVDIS) as well at ft the QCD structure of
the proton in the valance quark region. The program is complementary to that of the EIC, whichfocusses more on the lower Bjorken $x$ region. The PVDIS studies will measure the vector-electron and axial quark current, described by the coupling constants $C_2{u}$ and $C_{2d}$. Since these are small
in the Standard Model, a precision measurement provides a good test of BMS physics. Deep inelastic scattering is the only reaction for which the radiative corrections cam be precisely determined.In addition, the method provides a unique way to measure hadron physics at large Bjorken $x$. Charge symmetry violation can be isolated with a deuterium target and an isovector EMC effect can be studies in a neutron-rich nucleus such as $^{48}$Ca. In addition, quark-quark correlations can be isolated in hight-twist effects. With a proton target, the $d/u$ PDF ratio can be measured directly without making corrections for nuclear targets.

Speaker: Prof. Paul Souder (Syracuse University)

EIC.pdf

12 Parity violating DIS (g1,g5)

Speaker: Yuxiang Zhao (Stony Brook University)

Neutral-Current_Weak_Interactions_at_an_EIC.pdf

13 Electroweak Axial Structure Functions and CKM Unitarity

Speaker: Kyle Shiells (University of Manitoba)

EIC Talk 2020 Kyle Shiells_KLSPGB.pdf

Thursday, 7 May

14 Charge symmetry violation implications on extractions

Speaker: Phiala Shanahan (MIT)

Shanahan.pdf

15 Deuterium run impact on CSV

Speaker: Dipangkar Dutta (Mississippi State University)

CSV_EIC_2020.pdf

16 Precision weak mixing angle measurements

Speaker: Ayres Freitas (University of Pittsburgh)

eic_2020_freitas.pdf

10:30 Streching break

17 Lorentz and CPT violation in partons

Speaker: Enrico Lunghi (Indiana University)

t-200507-BSM@EIC-SME.key

t-200507-BSM@EIC-SME.pdf

18 Charge-current jet measurements

Speaker: Miguel Arratia (University of California, Riverside)

Workshop_EWBSMatEIC.pdf

19 Dark photon searches at EIC

Speaker: Ross Corliss (SBU)

EIC Dark Photons 2020.05.07.pdf

12:30 Lunch

20 Time symmetry violation

Speaker: Michael Snow (Indiana University Bloomington)

WMSEIC2020.pdf

21 Removing flat directions in SMEFT fits: how polarized electron-ion collider data can complement the LHC

We study the potential of future Electron-Ion Collider (EIC) data to probe four-fermion operators in the Standard Model Effective Field Theory (SMEFT). The ability to perform measurements with both polarized electron and proton beams at the EIC provides a powerful tool that can disentangle the effects from different SMEFT operators. We compare the potential constraints from an EIC with those obtained from Drell-Yan data at the Large Hadron Collider. We show that EIC data plays an important complementary role since it probes combinations of Wilson coefficients not accessible through available Drell-Yan measurements.

Speaker: Daniel Wiegand (Northwestern University/Argonne National Lab)

SMEFT_DanielWiegand.pdf

22 Open session

WorkshopShortSummary.pdf