8th Forward Physics Facility Meeting

Session

Parallel 2

Jan 21, 2025, 3:00 PM

6/2-004 (CERN)

Conveners

Parallel 2: Neutrino Measurements

• Ken Ohashi (Universitaet Bern (CH))
• Umut Kose (ETH-Zurich)

31. Sweeper Magnet study

Kohei Chinone (Chiba University (JP))

1/21/25, 3:00 PM

At the FPF site, the background muon levels are expected to be similar to those at the current FASERν site. While the FASERν experiment requires replacing the detector 2-3 times per year, we aim to reduce this to once per year for FASERν2. To achieve this, We studied possibilities to use a sweeper magnet to reduce the background muons to one-third.
In this study, I performed GEANT4...

9. Optical readout option for the FLArE detector

k Mavrokoridis (University of Liverpool (GB))

1/21/25, 3:20 PM

I will present results obtained using the ARIADNE fast optical readout system and on how these inform the design of a FLArE optical LArTPC. A conceptual design of the FLArE TPC with a light readout plane and fast TimePix cameras will be discussed as well as a vacuum insulated cylindrical cryostat for this TPC option.

6. Data-driven constraints on the prompt neutrino fluxes

Jelle Koorn, Jukka John (Nikhef Theory Group)

1/21/25, 3:40 PM

The detection of TeV-energy neutrinos by the LHC far-forward detectors FASER/FASER$\nu$ and SND@LHC enables novel opportunities to validate theoretical predictions of of forward light particle production. In this work we present work in progress towards using the FASER and FPF event rate measurements to extract the LHC forward neutrino fluxes in a theory-agnostic manner by means of machine...

3. Unravelling New Physics Signals at the HL-LHC with Low-Energy Constraints

Elie Hammou

1/21/25, 4:00 PM

Recent studies suggest that global fits of Parton Distribution Functions (PDFs) might inadvertently 'fit away' signs of new physics in the high-energy tails of the distributions measured at the high luminosity programme of the LHC (HL-LHC). This could lead to spurious effects that might conceal key BSM signatures and hinder the success of indirect searches for new physics. In this talk, I...

36. Discovering neutrino tridents at FASER$\nu$2

Dr Toni Makela (University of California, Irvine)

1/21/25, 4:50 PM

Neutrino trident production of di-lepton pairs is well recognized as a sensitive probe of both electroweak physics and physics beyond the Standard Model. Although a rare process, it could be significantly boosted by such new physics, and it also allows the electroweak theory to be tested in a new regime. We demonstrate that the forward neutrino physics program at the Large Hadron Collider...

2. Tau polarization effects in $\nu_\tau / \bar{\nu}_\tau $ - tungsten interactions at the LHC energies

Reinaldo Francener (Universidade Estadual de Campinas)

1/21/25, 5:10 PM

Considering that the study of neutrino - nucleus interactions with incident neutrino energy ranges in the GeV - TeV range is feasible at the Large Hadron Collider, we investigate in this work the degree of polarization ${\cal{P}}$ of the (anti) tau lepton produced in (anti) tau neutrino - tungsten interactions. In this study we also investigate the impact of the tau polarization on the pions...

39. FORTVNE: scintillator bar-tungsten detector for FASER upgrades

Dr Wenjie Wu (University of California, Irvine), Wenjie Wu (University of California, Irvine)

1/21/25, 5:30 PM

We discuss results from simulations and CNNs to distinguish neutrino CC and NC events with a scintillator bar-tungsten detector in the FASER location.

5. FASERCal: High-Energy Neutrino Measurements at FASER

Charlotte Cavanagh (ETH Zurich (CH))

1/21/25, 5:50 PM

To address the challenges of higher muon background in addition to the increase in luminosity in LHC Run 4, ETH Zurich proposes a novel detector system which aims to provide highly granular 3D tracking, calorimetry and muon identification with a design that is compact, modular and scalable. The proposed FASERCal detector is designed to detect both charged-current and neutral-current neutrino...