4th Forward Physics Facility Meeting

Session

BSM Working Group

Jan 31, 2022, 7:15 PM

Conveners

BSM Working Group

• Felix Kling (DESY)

11. Searching for Light Dark Matter at the Forward Physics Facility

Brian Thomas Batell

1/31/22, 7:15 PM

Light sub-GeV dark matter and dark sector particles can be copiously produced in the far forward direction at the LHC. The proposed FLArE, FASERnu2, and FASER2 experiments, housed in the Forward Physics Facility, can be sensitive to a variety of dark matter scattering and other associated dark sector signatures during the HL-LHC era. This talk will provide an overview of this possibility,...

15. Dark states with electromagnetic form factors at FLArE

Jui-Lin Kuo

1/31/22, 7:30 PM

Similar to millichagred particles, dark states with electromagnetic form factors can be probed at FLArE by scattering signals with SM particles in the detector. I will discuss details of production channels and the detection mechanism. Finally, I will present the projected sensitivity of FLArE.

50. Hunting Inflaton at FASER

Digesh Raut, Digesh Raut (University of Delaware)

1/31/22, 7:45 PM

We consider the nonminimal quartic inflation in a classically conformal $U(1)_X$ extended SM. We show that if the inflaton mass and its mixing angle with the SM Higgs field lie in a suitable range, the FASER experiment can search for the inflaton at the High Luminosity (HL)-LHC. Also because of the classical conformal invariance, the inflationary predictions and the LHC search for the $U(1)_X$...

37. Searching for dark photons at the FPF

Patrick Foldenauer

1/31/22, 8:00 PM

In the search for new physics, the dark photon is one of the most studied
targets. It is often invoked as a mediator connecting the SM to a secluded dark
sector charged under a novel dark $U(1)_X$ symmetry. However, beyond
the minimal secluded dark photon model there is a myriad of anomaly-free U(1)
extensions of the SM, which originate from gauging combinations the accidental
global...

13. Decays (and Production) of Light Vectors

Peter Reimitz

1/31/22, 8:15 PM

We provide a robust calculation of hadronic decays of light vector particles ($m<2$ GeV) into an extensive set of final state configurations of mesons and baryons. We improve currently considered mesonic decay channels as included in DarkCast, and complement them by a large list of additional channels, especially in the range of excited $\rho$, $\omega$, and $\phi$ states above $m>1$ GeV. We...

39. Radiative Decay of sub-GeV Supersymmetric Neutralinos from Light Mesons

Dominik Köhler

1/31/22, 8:30 PM

In certain supersymmetric scenarios, no existing mass bounds apply to the lightest neutralino. In the case of broken R-parity, such very-light neutralinos — produced via rare decays of mesons — may decay radiatively over macroscopic timescales leading to a single boosted-photon signature in the far-forward region at the LHC. We consider various R-parity Violating Supersymmetry (RPV-SUSY)...

14. Bremming Enhanced ALP Productions and FPF Sensisivity

Kunfeng Lyu (University of Minnesota)

1/31/22, 8:45 PM

The searches of axion-like particles (ALP) are strongly motivated by the general dark sector, strong CP problem and axiom quality problem etc. We focus on the gluonic coupling to ALP which is relevant to the strong CP puzzle and is of great importance. We propose the axion as the bremsstrahlung radiation off the proton in the typical proton-proton collision which has not been incorporated in...