Measurements of open charm production in Au plus Au collisions at root s(NN)=200 GeV with the STAR experiment at RHIC

Radhakrishnan, S.; Adam, J.; Adamczyk, L.; Adams, J. R.; Adkins, J. K.; Agakishiev, G.; Bielčík, J.; Bielčíková, Jana; Chaloupka, P.; Federič, Pavol; Harlenderová, A.; Holub, L.; Kocan, M.; Kosarzewski, L. K.; Kramárik, L.; Kvapil, J.; Lidrych, J.; Líčeník, R.; Matonoha, O.; Moravcová, Z.; Rusňák, Jan; Rusňáková, O.; Šimko, Miroslav; Šumbera, Michal; Vaněk, Jan

doi:https://dx.doi.org/10.1016/j.nuclphysa.2018.10.050

Počet záznamů: 1

Measurements of open charm production in Au plus Au collisions at root s(NN)=200 GeV with the STAR experiment at RHIC

1.

SYSNO ASEP	0502304
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Measurements of open charm production in Au plus Au collisions at root s(NN)=200 GeV with the STAR experiment at RHIC
Tvůrce(i)	Radhakrishnan, S. (US) Adam, J. (US) Adamczyk, L. (PL) Adams, J. R. (US) Adkins, J. K. (US) Agakishiev, G. (RU) Bielčík, J. (CZ) Bielčíková, Jana (UJF-V)_{RID, ORCID, SAI} Chaloupka, P. (CZ) Federič, Pavol (UJF-V)_{ORCID, SAI} Harlenderová, A. (CZ) Holub, L. (CZ) Kocan, M. (CZ) Kosarzewski, L. K. (CZ) Kramárik, L. (CZ) Kvapil, J. (CZ) Lidrych, J. (CZ) Líčeník, R. (CZ) Matonoha, O. (CZ) Moravcová, Z. (CZ) Rusňák, Jan (UJF-V)_{RID, ORCID, SAI} Rusňáková, O. (CZ) Šimko, Miroslav (UJF-V)_{ORCID, SAI} Šumbera, Michal (UJF-V)_{RID, ORCID, SAI} Vaněk, Jan (UJF-V)_{ORCID, SAI}
Celkový počet autorů	349
Zdroj.dok.	Nuclear Physics. A. - : Elsevier - ISSN 0375-9474 Roč. 982, č. 2 (2019), s. 659-662
Poč.str.	4 s.
Forma vydání	Tištěná - P
Akce	27th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (Quark Matter 2018)
Datum konání	13.05.2018 - 19.05.2018
Místo konání	Venice
Země	IT - Itálie
Typ akce	WRD
Jazyk dok.	eng - angličtina
Země vyd.	NL - Nizozemsko
Klíč. slova	STAR ; quark gluon plasma ; charm quark production ; charm quark hadronization ; heavy flavor energy loss
Vědní obor RIV	BG - Jaderná, atomová a mol. fyzika, urychlovače
Obor OECD	Nuclear physics
Způsob publikování	Open access
Institucionální podpora	UJF-V - RVO:61389005
UT WOS	000457515500150
EID SCOPUS	85060138951
DOI	10.1016/j.nuclphysa.2018.10.050
Anotace	We report in these proceedings on the measurements of collision centrality and transverse momentum (p(T)) dependences of the Lambda(+/-)(c) production in Au+Au collisions at root s(NN) = 200 GeV, using the STAR Heavy Flavor Tracker (HFT). The Lambda(+/-)(c) signal significance is greatly improved with the addition of the high-statistics data set collected in 2016 and the use of a supervised machine learning method for topological reconstruction of the decay vertices. The measured Lambda(+/-)(c)/D-0 ratio shows a significant enhancement compared to the PYTHIA prediction for p+p collisions, across the measured p(T) range. We also report on the updated measurements of D-0 nuclear modification factors R-AA and R-CP using the 2014 data with the HFT. The measured D-0 R-AA in central collisions is lower than unity across the p(T) interval of the measurement. The D-0 yields show strong suppression at high p(T) (> 6 GeV/c) in central collisions, consistent with that of light flavor hadrons. The c (c) over bar production cross section per binary nucleon collision at midrapidity in Au+Au collisions at 200 GeV is extracted based on the various charm hadron measurements by STAR. It is observed that while the charm hadrochemistry is significantly modified in Au+Au collisions compared to p+p collisions, the c (c) over bar production cross section at midrapidity remains consistent between Au+Au and p+p collisions.
Pracoviště	Ústav jaderné fyziky
Kontakt	Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228
Rok sběru	2020
Elektronická adresa	https://doi.org/10.1016/j.nuclphysa.2018.10.050

Počet záznamů: 1