Far Forward Physics (Meeting added because of holidays)

Thursday 18 Nov 2021, 12:30 → 13:35 US/Eastern

CERN

Milind Vaman Diwan (Brookhaven National Laboratory (US))

Discussion regarding the physics and detector design for the Forward Physics Facility at the LHC. 

MVD, Wenjie Wu,  Sebastian White, Ahmed Ismail, Bolotnikov, Asner, Kling, Reno, Bian, Feng, Kuzniak, Paolone, Trojanowski, Tsang,  Yichen Li, Yu Seon Jeong

 

MVD would like to make a list of papers and documents that people are contributing. 

Will ask over email.

Wenjie showed some initial results on tau containment. Containment is quite good with neutrino energy missing.

MVD claims that the background rejection needed for extraction of nu_tau events is not too high (~factor of 40) 

Jonathan questions the basis for this.  Certainly just muon tagging might be good enough to eliminate muon neutrinos. Neutral currents and electrons neutrinos remain to be rejected.  Need more simulation studies. 

There are issues in using Genie for interactions above 100 GeV. 

Felix will provide information on high energy Genie interactions.

Mary Hall: Has Alfonso Garcia Soto also incorporated DIS into GENIE up to high energies?

Felix Kling to Everyone (1:16 PM)
There is a new module called HEDIS (high energy DIS) in GENIE now, which should be able to do this. See https://arxiv.org/abs/2106.09381 Sec 3.7.

Marcin provided a calculation of light yield for some geometries for LAR and LKR.

The dark rates are manageable in SiPM at these temperatures.  But we need a better calculation of Kr85 rates.

If Kr85 is too high, we will need alternate ideas for triggering. 

MVD showed some pictures of the R&D setup at CERN for scintillation R&D.

Marcin is talking to Filippo about R&D at CERN.

Next meeting will be December 9. 

 

12:30 → 12:45 Updates and documents

Some updates since last meeting. Also provide a list of documents that are related to FPF and Snowmass that are being produced.

Speaker: Milind Vaman Diwan (Brookhaven National Laboratory (US))

updates.pdf

12:45 → 13:05 Initial look at nutau simulations.

Initial look at nutau simulations and reconstruction in lqiuid argon or krypton detectors.

Speakers: Wenjie Wu (University of California, Irvine), Wenjie Wu (University of California, Irvine)

20211118@FLArEDetectorSimulation.pdf

13:05 → 13:25 Photon detection and backgrounds rates

A look at SiPM readout of photon detection in LAR and LKR
detectors.
Some comments on R&D that is needed.

Speaker: Marcin Marek Kuzniak (Polish Academy of Sciences (PL))

Kuzniak_lightyield_dcr.pdf

13:25 → 13:30 R&D possibilities.

List of detector R&D

RandDatCERN.pdf