Study of flavor dependence of the baryon-to-meson ratio in proton-proton collisions at √s=13 TeV

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F23%3A00582295" target="_blank" >RIV/61389005:_____/23:00582295 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/23:00582295

Result on the web

<a href="https://doi.org/10.1103/PhysRevD.108.112003" target="_blank" >https://doi.org/10.1103/PhysRevD.108.112003</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevD.108.112003" target="_blank" >10.1103/PhysRevD.108.112003</a>

Result language

angličtina

Original language name

Study of flavor dependence of the baryon-to-meson ratio in proton-proton collisions at √s=13 TeV

Original language description

The production cross sections of D-0 and Lambda(+)(c) hadrons originating from beauty-hadron decays (i.e., nonprompt) were measured for the first time at midrapidity (|y| < 0.5) by the ALICE Collaboration in proton-proton collisions at a center-of-mass energy root s = 13 TeV. They are described within uncertainties by perturbative QCD calculations employing the fragmentation fractions of beauty quarks to baryons measured at forward rapidity by the LHCb Collaboration. The bb production cross section per unit of rapidity at midrapidity, estimated from these measurements, is d sigma(bb)/dy|(|y|<0.5 )= 83.1 +/- 3.5(stat) +/- 5.4(syst)(-3.2)(+12.3) (extrap) mu b. The baryon-to-meson ratios are computed to investigate the hadronization mechanism of beauty quarks. The nonprompt Lambda(+)(c)/D-0 production ratio has a similar trend to the one measured for the promptly produced charmed particles and to the p/pi(+) and Lambda/K-S(0) ratios, suggesting a similar baryon-formation mechanism among light, strange, charm, and beauty hadrons. The p(T) -integrated nonprompt Lambda(+)(c)/D-0 ratio is found to be significantly higher than the one measured in e(+)e(-) collisions.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10304 - Nuclear physics

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physical Review D

ISSN

2470-0010

e-ISSN

2470-0029

Volume of the periodical

108

Issue of the periodical within the volume

11

Country of publishing house

US - UNITED STATES

Number of pages

19

Pages from-to

112003

UT code for WoS article

001137344800006

EID of the result in the Scopus database

2-s2.0-85181679313