New Perspectives 2024

Session

SpinQuest

9 Jul 2024, 08:00

One West (Fermi National Accelerator Laboratory)

Conveners

SpinQuest

• Thomas Murphy ()

Contribution list Timetable

85. SpinQuest in 10 Minutes

Md Forhad Hossain (New Mexico State University)

09/07/2024, 08:00

The E1039/SpinQuest experiment at Fermi National Accelerator Laboratory uses a 120 GeV proton beam from the Main Injector, incident upon transversely polarized protons and deuterons using $NH_3$ and $ND_3$ targets, respectively. SpinQuest will perform the first measurement of the Sivers asymmetry in Drell-Yan (pp) and (pd) scattering from sea quarks, thereby contributing to the world data...

86. Overview of SpinQuest Polarized Target System

Vaniya Ansari (Mississippi State University)

09/07/2024, 08:15

SpinQuest is a polarized target experiment that utilizes the 120 GeV proton beam from the Main Injector facility at Fermilab. The aim is to measure the Sivers asymmetry for the light sea quarks in the longitudinal momentum fraction range of $0.1-0.5$ in the Drell-Yan process. A non-vanishing Sivers function for sea quarks is evidence of sea quark orbital angular momentum. SpinQuest intends to...

99. The microwave system of the SpinQuest polarized target setup

Vibodha Bandara

09/07/2024, 08:30

The SpinQuest experiment at Fermilab uses a polarized solid ammonia
target under a 5T magnetic field, immersed in the liquid helium bath of
an evaporation refrigerator, which lowers the lattice temperature of the
material to nearly 1K. This brings the materials to thermal equilibrium
(TE) polarization state. The TE polarization of the material is enhanced
by radiating a d-band microwave,...

107. Beam Heat Load Effect on Polarization in the SpinQuest Experiment

Muhammad Farooq (University of Virginia, USA)

09/07/2024, 08:45

The SpinQuest experiment at Fermilab aims to measure the Sivers asymmetry for light sea quarks in the longitudinal momentum fraction range of 0.1 < $x_B$ < 0.5 using polarized observables from the Drell-Yan process. This requires polarized NH$_3$ and ND$_3$ targets. The experiment employs Fermilab's 120 GeV main injector proton beam, delivering approximately 3x$10^{12}$ protons per second over...

108. Extracting Sivers Asymmetry in Drell-Yan at E1039 experiment using a likelihood method

Harsha Sirilal Kalu Arachchige (New Mexico State University)

09/07/2024, 09:00

The intrinsic spins of the valence and sea quarks inside the nucleon contribute only a fraction of the total spin of the nucleon. The orbital angular momentum of these quarks may also contribute. A non-vanishing Sivers function, which will produce a Transverse Single Spin Asymmetry in Drell-Yan production, is conclusive evidence of non-zero or- bital angular momentum. The E1039 (SpinQuest)...

121. Measurement of transverse single-spin asymmetries for $J/\psi$ production in polarized p + p collisions at $\sqrt{s} = 15GeV$

Chatura Kuruppu (University Of South Carolina)

09/07/2024, 09:15

The transverse single-spin asymmetry (TSSA) is a measure of the imbalance in particle production concerning the plane defined by the transverse spin axis and the direction of momentum of a polarized hadron. TSSAs have gained recognition as a method for examining Quantum Chromodynamics (QCD), both within the initial-state hadrons and during the process of hadronization from partons. In $J/\psi$...

24. Domain Adaptation in Gravitational Lens Analysis

Upcoming surveys are predicted to discover galaxy-scale strong lenses on the magnitude of $10^5$, making deep learning methods necessary in lensing data analysis. Currently, there is insufficient real lensing data to train deep learning algorithms, but training only on simulated data results in poor performance on real data. Domain adaptation can bridge the gap between simulated and real...

2. Precision ionization calibrations of silicon skipper CCDs for dark matter detection

Direct dark matter detection experiments can reach the thresholds as low as $\mathcal{O}$(10eV). In that regime, we report precision ionization measurements induced by Compton scattering of gamma rays and nuclear recoils from neutrons. A skipper charge-coupled device (CCD) with single electron resolution developed for DAMIC-M experiment was used to collect data. Compton scattering on silicon...

55. Regional Selection with Skipper CCDs for Astronomical Applications

The Skipper CCD, through the use of a floating gate output stage, allows for multiple, non-destructive charge measurements per pixel and thus, a tunable readout noise level which has been shown to reach down to .04 e- rms. In the next coming months, a Skipper CCD composed focal plane is planned to replace the current conventional CCD detector at the SOAR Integral Field Spectrograph (SIFS) with...

28. Searching for Dwarf Galaxies Around Isolated, Low-Mass Hosts

Dwarf galaxies are the oldest, least evolved, and most dark-matter-dominated galaxies in the universe, therefore studying them can shed light on the formation of some of the first galaxies to exist, the evolution of larger host galaxies like our Milky Way, as well as the abundance and distribution of dark matter across the Local Universe. Most research to date involving dwarf galaxies has...

49. Telescopes Drive Themselves: Optimizing Cosmic Survey Scheduling with Reinforcement Learning

The planning and execution of observational cosmology campaigns have undergone a substantial increase in complexity, particularly for advanced telescopes like the Rubin Observatory’s LSST, JWST, and the Nancy Grace Roman telescope.
Traditionally, astronomical observatories have relied on manual planning to scan a predefined list of astronomical objects, which usually results in suboptimal...

8. The Dependence of Cooling and Heating Functions on Local Radiation Fields

Cooling and heating functions of gas determine its energy budget and the thermal pressure support it can provide. These functions are thus a key ingredient in the physics that control how stars and galaxies form. The radiative transfer physics shaping cooling and heating functions is known, but is too computationally expensive to include in hydrodynamic simulations for realistic local...