TY  - EJOUR
AU  - Kniehl, B. A.
AU  - Kramer, G.
AU  - Schienbein, I.
AU  - Spiesberger, H.
TI  - Λ<sub>c</sub><sup>±</sup> production in pp collisions with a new fragmentation function
IS  - arXiv:2004.04213
M1  - PUBDB-2020-01553
M1  - arXiv:2004.04213
M1  - DESY-20-058
M1  - MITP/20-015
PY  - 2020
N1  - * Temporary entry *21 pages
AB  - We study inclusive Λ<sub>c</sub><sup>±</sup>-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 → Λ<sub>c</sub><sup>+</sup> fragmentation function combining e<sup>+</sup>e<sup>−</sup> 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<sub>c</sub><sup>±</sup> production cross sections from the LHC experimental collaborations is not resolved. The ratio of data for Λ<sub>c</sub><sup>+</sup>-baryon and D<sup>0</sup>-meson production seems to violate the universality of c-charm quark to c-hadron fragmentation.
KW  - p p: scattering (autogen)
KW  - universality: violation (autogen)
KW  - fragmentation function (autogen)
KW  - CERN LHC Coll (autogen)
KW  - fragmentation (autogen)
KW  - tension (autogen)
KW  - BELLE (autogen)
KW  - ALICE (autogen)
KW  - quark (autogen)
KW  - LHC-B (autogen)
KW  - OPAL (autogen)
KW  - CMS (autogen)
LB  - PUB:(DE-HGF)25 ; PUB:(DE-HGF)29
DO  - DOI:10.3204/PUBDB-2020-01553
UR  - https://bib-pubdb1.desy.de/record/437492
ER  -