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@ARTICLE{Acharya:250807,
author = {Acharya, Shreyasi and others},
title = {{M}easurement of {P}rompt {D}$^{0}$, $\Lambda_{c}^{+}$, and
$\Sigma_{c}^{0,++}$(2455) {P}roduction in
{P}roton–{P}roton {C}ollisions at $\sqrt s$ = 13 {T}e{V}},
journal = {Physical review letters},
volume = {128},
number = {1},
issn = {0031-9007},
address = {College Park, Md.},
publisher = {APS},
reportid = {GSI-2023-00081, arXiv:2106.08278. CERN-EP-2021-103},
pages = {012001},
year = {2022},
note = {Phys. Rev. Lett. 128 (2022) 012001. 20 pages, 2 captioned
figures + 2 captioned figures in appendix, authors from page
12, published version, figures at
http://alice-publications.web.cern.ch/node/7197. Published
by the American Physical Society under the terms of the
Creative Commons Attribution 4.0 International license.},
abstract = {The $p_{\rm T}$-differential production cross sections of
prompt D$^0$, Λ$_c^+$, and Σ$_c^{0,++}$(2455) charmed
hadrons are measured at midrapidity (|y|<0.5) in pp
collisions at $\sqrt{s}$=13 TeV. This is the first
measurement of Σ$_c^{0,++}$ production in hadronic
collisions. Assuming the same production yield for the three
Σ$_c^{0,+,++}$ isospin states, the baryon-to-meson cross
section ratios Σ$_c^{0,+,++}$/D$^0$ and Λ$_c^+$/D$^0$ are
calculated in the transverse momentum ($p_\rm{T}$) intervals
$2 < p_{\rm T} < 12$ and $1 < p_{\rm T} < 24$ GeV/$c$.
Values significantly larger than in e$^+$e$^-$ collisions
are observed, indicating for the first time that baryon
enhancement in hadronic collisions also extends to the
Σ$_c$. The feed-down contribution to Λ$_c^+$ production
from Σ$_c^{0,+,++}$ is also reported and is found to be
larger than in e$^+$e$^-$ collisions. The data are compared
with predictions from event generators and other
phenomenological models, providing a sensitive test of the
different charm-hadronization mechanisms implemented in the
models.},
keywords = {hadron hadron, interaction (INSPIRE) / p p, scattering
(INSPIRE) / cross section, ratio (INSPIRE) / TeV (INSPIRE) /
GeV (INSPIRE) / baryon (INSPIRE) / transverse momentum
(INSPIRE) / isospin (INSPIRE) / enhancement (INSPIRE) /
hadron (INSPIRE) / Monte Carlo (INSPIRE)},
cin = {ALI / DTL / CIT / EXM / ALICE@CERN},
ddc = {530},
cid = {I:(DE-Ds200)ALI-20080822OR105 /
I:(DE-Ds200)DTL-20051214OR031 /
I:(DE-Ds200)CIT-20110310OR121 /
I:(DE-Ds200)EXM-20080818OR100 / I:(DE-Ds200)Coll-CERN-ALICE},
pnm = {612 - Cosmic Matter in the Laboratory (POF4-612) / HGS-HIRe
- HGS-HIRe for FAIR (HGS-HIRe) / SUC-GSI-Heidelberg -
Strategic university cooperation GSI-U Heidelberg
(SUC-GSI-HE) / SUC-GSI-Frankfurt - Strategic university
cooperation GSI-U Frankfurt/M (SUC-GSI-FR) /
SUC-GSI-Darmstadt - Strategic university cooperation GSI-TU
Darmstadt (SUC-GSI-DA)},
pid = {G:(DE-HGF)POF4-612 / G:(DE-Ds200)HGS-HIRe /
G:(DE-Ds200)SUC-GSI-HE / G:(DE-Ds200)SUC-GSI-FR /
G:(DE-Ds200)SUC-GSI-DA},
experiment = {EXP:(DE-H253)LHC-Exp-ALICE-20150101},
typ = {PUB:(DE-HGF)16},
eprint = {2106.08278},
howpublished = {arXiv:2106.08278},
archivePrefix = {arXiv},
SLACcitation = {$\%\%CITATION$ = $arXiv:2106.08278;\%\%$},
UT = {WOS:000748271700007},
pubmed = {pmid:35061479},
doi = {10.1103/PhysRevLett.128.012001},
url = {https://repository.gsi.de/record/250807},
}