Investigating cosmic ray elemental spectra and the atmospheric muon neutrino flux

Bowman, D.; Scrandis, R.; Seo, E. S.

doi:10.1016/j.asr.2022.07.037

Cited by 2 publications

(1 citation statement)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is also worth mentioning that the most recent estimates from cosmic ray extended air shower experiments, such as the Pierre Auger Observatory [68] and Telescope Array [69], point towards a mixed composition at the highest energies (see also refs. [66,70]).…”

Section: Cosmic Ray Spectrummentioning

confidence: 99%

Forward production of prompt neutrinos from charm in the atmosphere and at high energy colliders

Bai,

Diwan,

Garzelli

et al. 2023

J. High Energ. Phys.

View full text Add to dashboard Cite

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 $$ \sqrt{s} $$ 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 $$ \sqrt{s} $$ 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 $$ \sqrt{s} $$ 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.

show abstract