Measurements of D-0 and D* production in p plus p collisions at root s=200 GeV

Adamczyk, L.; Agakishiev, G.; Aggarwal, M. M.; Ahammed, Z.; Alakhverdyants, A. V.; Alekseev, I.; Alford, J.; Anderson, B. D.; Anson, C.; Barnovská, Zuzana; Bielčík, J.; Bielčíková, Jana; Chaloupka, Petr; Chung, Paul; Hajková, O.; Kapitán, Jan; Pachr, M.; Rusňák, Jan; Šumbera, Michal; Tlustý, David

doi:https://dx.doi.org/10.1103/PhysRevD.86.072013

Number of the records: 1

Measurements of D-0 and D* production in p plus p collisions at root s=200 GeV

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SYSNO ASEP	0385264
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Measurements of D-0 and D* production in p plus p collisions at root s=200 GeV
Author(s)	Adamczyk, L. (PL) Agakishiev, G. (RU) Aggarwal, M. M. (IN) Ahammed, Z. (IN) Alakhverdyants, A. V. (RU) Alekseev, I. (RU) Alford, J. (US) Anderson, B. D. (US) Anson, C. (US) Barnovská, Zuzana (UJF-V) Bielčík, J. (CZ) Bielčíková, Jana (UJF-V)_{RID, ORCID, SAI} Chaloupka, Petr (UJF-V)_RID Chung, Paul (UJF-V) Hajková, O. (CZ) Kapitán, Jan (UJF-V) Pachr, M. (CZ) Rusňák, Jan (UJF-V)_{RID, ORCID, SAI} Šumbera, Michal (UJF-V)_{RID, ORCID, SAI} Tlustý, David (UJF-V)
Number of authors	366
Source Title	Physical Review D: Particles, Fields, Gravitation and Cosmology. - : American Physical Society - ISSN 1550-7998 Roč. 86, č. 7 (2012), s. 072013
Number of pages	14 s.
Language	eng - English
Country	US - United States
Keywords	heavy quarks ; heavy mesons ; relativistic collisions
Subject RIV	BG - Nuclear, Atomic and Molecular Physics, Colliders
R&D Projects	LA09013 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Institutional support	UJF-V - RVO:61389005
UT WOS	000310436300002
DOI	10.1103/PhysRevD.86.072013
Annotation	We report measurements of charmed-hadron (D-0, D) production cross sections at midrapidity in p + p collisions at a center-of-mass energy of 200 GeV by the STAR experiment. Charmed hadrons were reconstructed via the hadronic decays D-0 -> K- pi(+), D(+) -> D-0 pi(+) -> K-pi(+)pi(+) and their charge conjugates, covering the p(T) range of 0.6-2.0 and 2.0-6.0 GeV/c for D-0 and D*(+), respectively. From this analysis, the charm-pair production cross section at midrapidity is d sigma/dy vertical bar(c (c) over bar)(y-0) = 170+/-45(stat)(-59)(+38()sys) mu b. The extracted charm-pair cross section is compared to perturbative QCD calculations. The transverse momentum differential cross section is found to be consistent with the upper bound of a fixed-order next-to-leading logarithm calculation.
Workplace	Nuclear Physics Institute
Contact	Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228
Year of Publishing	2013

Number of the records: 1