Forward production of prompt neutrinos from charm in the atmosphere and at high energy colliders
Journal Article
·
· Journal of High Energy Physics (Online)
- Sun Yat-sen University, Guangdong (China)
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Universität Hamburg Luruper Chaussee (Germany)
- Chung-Ang University, Seoul (Korea, Republic of)
- Brookhaven National Laboratory (BNL), Upton, NY (United States); Stony Brook University, NY (United States); Columbia University, New York, NY (United States)
- University of Iowa, Iowa City, IA (United States)
The high-energy atmospheric neutrino flux is dominated by neutrinos from the decays of charmed hadrons produced in the forward direction by cosmic ray interactions with air nuclei. We evaluate the charm contributions to the prompt atmospheric neutrino flux as a function of the center-of-mass energy √s of the hadronic collision and of the center-of-mass rapidity y of the produced charm hadron. Uncertainties associated with parton distribution functions are also evaluated as a function of y. We find that the y coverage of LHCb for forward heavy-flavour production, complemented by the angular coverage of present and future forward neutrino experiments at the LHC, bracket the most interesting y regions for the prompt atmospheric neutrino flux. At √s = 14 TeV foreseen for the HL-LHC phase, nucleon collisions in air contribute to the prompt neutrino flux prominently below Eν ~ 107 GeV. Measurements of forward charm and/or forward neutrinos produced in hadron collisions up to √s = 100 TeV, which might become possible at the FCC, are relevant for the prompt atmospheric neutrino flux up to Eν = 108 GeV and beyond.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Grant/Contract Number:
- SC0010113; SC0012704
- OSTI ID:
- 2008206
- Report Number(s):
- BNL--224879-2023-JAAM
- Journal Information:
- Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 10 Vol. 2023; ISSN 1029-8479
- Publisher:
- Springer NatureCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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