Journal Article

PUBDB-2020-03120

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png $\Lambda_c^{\pm}$ production in pp collisions with a new fragmentation function

Kniehl, B. A.Extern* ; Kramer, G.Extern* ; Schienbein, I.Extern* ; Spiesberger, H.

2020
Inst.302363 Melville, NY

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Please use a persistent id in citations: doi:10.1103/PhysRevD.101.114021  doi:10.3204/PUBDB-2020-03120

Report No.: DESY-20-058; MITP/20-015; arXiv:2004.04213

Abstract: We study inclusive $Λ_{c}^±$-baryon production in $pp$ collisions in the general-mass variable-flavor-number scheme and compare with data from the LHCb, ALICE, and CMS collaborations. We perform a new fit of the $c \to Λ_{c}^±$ fragmentation function combining $e^+ e^-$ data from OPAL and Belle. The agreement with LHC data is slightly worse compared with a calculation using an older fragmentation function, and the tension between different determinations of $Λ_{c}^±$ production cross sections from the LHC experimental collaborations is not resolved. The ratio of data for $Λ_{c}^+$-baryon and D$^0$-meson production seems to violate the universality of c-quark to c-hadron fragmentation.

Keyword(s): p p: scattering ; Lambda/c+: production ; universality: violation ; fragmentation function ; CERN LHC Coll ; BELLE ; ALICE ; LHC-B ; OPAL ; CMS ; electron positron: annihilation ; data analysis method ; charm: fragmentation

Note: 21 pages ; publication: Phys.Rev. D101 11 (2020) 114021 ; ;

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Contributing Institute(s):

1. Uni Hamburg / Theorie (UNI/TH)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF3-611) (POF3-611)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2020

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Database coverage:
; ; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; 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/Report Kniehl, B. A.Extern* ; Kramer, G.Extern* ; Schienbein, I. ; Spiesberger, H.
$\Lambda_c^{\pm}$ production in pp collisions with a new fragmentation function
[10.3204/PUBDB-2020-01553]     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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