Journal Article

PUBDB-2023-03587

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Forward neutrinos from charm at the Large Hadron Collider

Bhattacharya, A. (Corresponding author) ; Kling, F.DESY* ; Sarcevic, I. ; Stasto, A. M.

2023
American Physical Society Ridge, NY

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Please use a persistent id in citations: doi:10.1103/PhysRevD.109.014040  doi:10.3204/PUBDB-2023-03587

Report No.: DESY-23-067; arXiv:2306.01578

Abstract: The currently operating FASER experiment and the planned Forward Physics Facility (FPF) will detect a large number of neutrinos produced in proton-proton collisions at the LHC. In this work, we estimate neutrino fluxes at these detectors from charm meson decays, which will be particularly important for the νe and ντ channels. We make prediction using both the next-to-leading order collinear factorization and the kT-factorization approaches to model the production of charm quarks as well as different schemes to model their hadronization into charm hadrons. In particular, we emphasize that a sophisticated modeling of hadronization involving beam remnants is needed for predictions at FASER and FPF due to the sensitivity to the charm hadron production at low transverse momenta and very forward rapidity. As example, we use the string fragmentation approach implemented in pythia 8. While both standard fragmentation functions and pythia 8 are able to describe LHCb data, we find that pythia 8 predicts significantly higher rate of high energy neutrinos, highlighting the importance of using the correct hadronization model when making predictions.

Keyword(s): parton: distribution function ; neutrino: flux ; p p: scattering ; forward production ; charm: production ; K: decay ; pi: decay ; higher-order: 1 ; hadron: decay ; factorization: collinear ; transverse momentum: factorization ; quantum chromodynamics ; fragmentation ; CERN LHC Coll ; LHC-B

Note: Physical Review D 109, 014040 (2024). v2: version as published, 29 pages, 12 figures

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Contributing Institute(s):

1. Theorie-Gruppe (T)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)
2. DFG project 390833306 - EXC 2121: Quantum Universe (390833306) (390833306)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2023

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Database coverage:
; ; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; SCOAP3 sponsored Journal ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint Bhattacharya, A. (Corresponding author) ; Kling, F.DESY* ; Sarcevic, I. ; Stasto, A. M.
Forward Neutrinos from Charm at Large Hadron Collider
[10.3204/PUBDB-2023-03581]     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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