We would like to report a series of studies and prototyping for data acquisition for EIC experiments. The EIC data rate is estimated based on full detector Geant4 simulations of the sPHENIX-EIC concept, which define the strategy in the DAQ design. The DAQ architecture is based on a high-performance FPGA-based PCI-express DAQ interface, which bridges custom front-end and commodity computing....
The recently-announced U.S.-based Electron-Ion Collider (EIC) is projected to facilitate polarized $eA$ collisions at a center-of-mass energy of $\sqrt{s} = 141 GeV$ at the largest $ep$ energy mode. The polarized electron beam would provide a unique opportunity to study the inner-structure of the proton and atomic nucleus. Recent studies show that $s(x,Q2)$ and $\Delta s(x,Q2)$ can be probed...
I will discuss DIS on a nucleus described as an extremal RN-AdS black hole with holographic quantum fermions in bulk. In leading order, the structure functions follow from the absorption of the R-current on the black-hole which most contribution at low-x. At next to leading order, the structure functions receive contributions from the bulk quantum fermions. DIS scattering off these...
We consider reweighted functional averages over the stochastic ensemble of small-x gluons. These correspond to observables over biased event ensembles. Such bias could, for example, be due to the selection of configurations with a greater number of gluons or higher mean transverse momentum squared. We compute the double inclusive gluon spectrum in high energy collisions in kT-factorization...
The prospects of accessing information on the hadronic form
factors of the energy-momentum tensor (EMT) have attracted
a lot of interest in literature. This concerns especially
the D-term form factor D(t) with its appealing interpretation
in terms of internal forces. With the focus on hadron structure,
so far theoretical and model studies concentrated on strongly
interacting...
Future high luminosity experiments, such as sPHENIX or any EIC detector, will greatly benefit from the use of a Time Projection Chamber (TPC) as one of its main tracking systems. A TPC’s ability to measure space points of charged tracks makes it an excellent detector for the desired resolution in momentum and energy loss dE/dx. The resolution is limited by distortions from Space Charge (SC) in...
We discuss nuclear corrections to the DIS structure functions focusing at the region of large Bjorken $x$. We present a detailed comparison with recent measurements of nuclear ratios at JLab: BONUS experiment [1] (deuterium), MARATHON experiment [2] ($^3$He and $^3$H targets) and Hall C [3] and CLAS collaboration [4] data. We show that the data at large $x$ can be well described by a combined...
We present prospects for the direct measurement of ratios of differential cross sections for the production of Z and Higgs bosons in proton-proton collisions, using data taken by CMS during the LHC Run II. The aim of the study is to investigate soft and hard gluon emission in the initial state for Higgs and Z production mechanisms. Hence, we focus on variables known to be sensitive to the...
Quantum entanglement (entanglement entropy) is proposed as
a universal phenomenon underlying the behavior of strongly
interacting systems across vastly different energy scales
(O.K. Baker and D.E. Kharzeev, Phys. Rev. D 98, 054007
(2018)). Deep Inelastic Scattering can be used to test this
hypothesis that there is a link between quantum entanglement
and nucleon and nuclear structure...
There is a nationwide drive to get more girls into physics and coding, and some educators believe gaming could be a way to get girls interested in coding and STEM topics. This project, sponsored by NSF, is to create a Quantum Chromodynamics (QCD) game that will raise public interest in QCD, especially among K-12 girls, and increase interest in coding among girls. Through the immersive...
We investigate the forward-jet energy spectrum within the color glass condensate framework at 5 TeV center-of-mass energy. In particular, we focus on the kinematic range covered by the CMS-CASTOR calorimeter. We show that our saturation-model calculations are compatible with the CASTOR measurements and that to optimally reproduce the data, effects of multiparton interactions need to be...
In this talk, an overview of parity violation deep inelastic scattering (PVDIS) future experiment by using a Solenoidal Large Intensity Device (SoLID) at Jefferson Lab (JLab) Hall A with the $12$ GeV upgrade, along with a brief description of the proposed SoLID spectrometer is discussed. We will obtain data with high statistic and large kinematic coverage for Bjorken $0.3< x <0.7$ and in the...
In theoretical and model studies so far the D-term D was always found
negative. The first insights from experiment indicate negative D-terms
for pion and proton. A proof that D < 0 was formulated based on classical
stability arguments. It is therefore interesting to ask whether it is possible
to encounter a positive D-term, if a physical system is unstable. This
question was...
The sPHENIX detector, designed to precisely measure jets, jet correlations, and dilepton pairs at RHIC energies, will begin data taking in 2023. With these key measurements in mind, sPHENIX will employ a compact TPC covering 20cm < r < 78 cm and |𝜂| < 1.1 as the central tracker. Utilizing an optimized Ne-CF4 gas mixture, zigzag readout pads, a 1.4T solenoid, and a modified SAMPA chip for...
The STAR Collaboration is constructing a forward rapidity (2.5 < $\eta$ < 4) upgrade that will include charged particle tracking and electromagnetic/hadronic calorimetry. Charge particle tracking capabilities are achieved via a combination of silicon detectors and small strip thin gap chamber detectors. Combining these detector types to achive tracking in the STAR forward region poses unique...
