QNP2022 - The 9th International Conference on Quarks and Nuclear Physics

Session

New Physics

Sep 8, 2022, 3:00 PM

online

Conveners

New Physics: Parallel 4

• Elton Smith (JLab)

New Physics: Parallel 2

• Igal Jaegle

242. Dark matter in high-intensity experiments

Yu-Dai Tsai (University of California, Irvine)

9/8/22, 3:00 PM

oral presentation

In this talk, I will give a broad overview of the production and detection of dark matter in high-intensity experiments. The dark matter and dark sector candidates include dark scalar, dark photon, millicharged particles, dark neutrino, and dipole-portal heavy neutral leptons in existing and future experiments like MiniBooNE, MicroBooNE, DUNE, SBN, NA62, and SHiP. I also discuss similar...

63. Mirror Matter searches with the J-PET detector

Elena Perez del Rio (Jagiellonian University)

9/8/22, 3:25 PM

The Positronium system, a bound state of an electron and a positron, is
suitable for testing the predictions of quantum electrodynamics (QED), since its
properties can be perturbatively calculated to high accuracy and is not affected
by finite size or QCD effects at the current experimental precision level. The
Ps triple state, the ortho-Positronium (o-Ps), which mainly decays to...

30. Latest results from the CUORE experiment

Samantha Pagan (Yale)

9/8/22, 3:50 PM

The Cryogenic Underground Observatory for Rare Events (CUORE) is the first bolometric experiment searching for 0νββ decay that has been able to reach the one-tonne mass scale. The detector, located at the LNGS in Italy, consists of an array of 988 TeO2 crystals arranged in a compact cylindrical structure of 19 towers. CUORE began its first physics data run in 2017 at a base temperature of...

82. Potential impact of a dark photon

Anthony Thomas (CSSM and CoEPP)

9/8/22, 4:15 PM

We explore the sensitivity of the parity-violating electron scattering (PVES) asymmetry in both elastic and deep-inelastic scattering to the properties of a dark photon. Given advances in experimental capabilities in recent years, there are interesting regions of parameter space where PVES offers the chance to discover
new physics in the near future. There are also cases where the existence...

248. Parity-violating electron scattering measurements at Jefferson Lab

David Armstrong (William & Mary)

9/9/22, 8:30 AM

oral presentation

Parity-violating electron scattering (PVES) is a relatively clean way to probe the weak mixing angle at intermediate energies. It also can provide information on aspects of nucleon and nuclear structure. In this talk I will review the progression in the sensitivity of PVES measurements and summarize recent results from Jefferson Lab. I will also describe the future MOLLER measurement, which...

155. Search for dark matter with the Beam Dump eXperiment (BDX)

Elton Smith (JLab)

9/9/22, 8:55 AM

Light dark matter (LDM), with masses in the MeV to GeV range, is theoretically well motivated but remarkably unexplored. The JLab Beam Dump eXperiment (BDX) is an approved proposal to collect up to 10^22 electrons-on-target (EOT) at 11 GeV during 285 days to search for LDM using a segmented CsI(Tl) scintillator detector placed downstream of the Hall A beam-dump at Jefferson Lab. This...

178. Displaced searches for light vector bosons/axions at Belle-2

Sabyasachi Chakraborty (International School for Advanced Studies (SISSA), Trieste, Italy)

9/9/22, 9:20 AM

Belle II experiment is the perfect laboratory to search for particles that couple weakly to the Standard Model and have a characteristic decay length of a few centimetres and more. Such long lived and displaced vertex search leads to a unique signal with essentially no background. Using this methodology we show that Belle II experiment can successfully probe parameter spaces of axions, light...

113. Sensitivity of the η(′) → π0γγ and η′ → ηγγ decays to a sub-GeV leptophobic U(1)B boson

Rafel Escribano

9/9/22, 9:45 AM

The sensitivity of the rare decays $\eta^{(\prime)}\to\pi^{0}\gamma\gamma$ and $\eta^{\prime}\to\eta\gamma\gamma$ to signatures of a leptophobic $B$ boson in the MeV--GeV mass range is analysed in this work.
By adding an explicit $B$-boson resonance exchange, $\eta\to B\gamma\to\pi^{0}\gamma\gamma$, to the Standard Model contributions from vector meson dominance and the linear sigma model,...