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Measurement of D* Mesons in Jets from p+p Collisions at sqrt{s} = 200 GeV
- Source :
- Physical Review D, Physical Review D, American Physical Society, 2009, 79, pp.112006. ⟨10.1103/PhysRevD.79.112006⟩
- Publication Year :
- 2009
-
Abstract
- We report the measurement of charged $D^*$ mesons in inclusive jets produced in proton-proton collisions at a center of mass energy $\sqrt{s}$ = 200 GeV with the STAR experiment at RHIC. For $D^{*}$ mesons with fractional momenta $0.2 < z < 0.5$ in inclusive jets with 11.5 GeV mean transverse energy, the production rate is found to be $N(D^{*+}+D^{*-})/N(\mathrm{jet}) = 0.015 \pm 0.008 (\mathrm{stat}) \pm 0.007 (\mathrm{sys})$. This rate is consistent with perturbative QCD evaluation of gluon splitting into a pair of charm quarks and subsequent hadronization.<br />7 pages, 4 figures
- Subjects :
- High Energy Physics - Experiment (hep-ex)
13.85.Ni
13.25.Ft
13.87.Fh
Nuclear Theory
High Energy Physics::Phenomenology
FOS: Physical sciences
Physics::Accelerator Physics
High Energy Physics::Experiment
Astrophysics::Earth and Planetary Astrophysics
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Nuclear Experiment
High Energy Physics - Experiment
Subjects
Details
- Language :
- English
- ISSN :
- 15507998 and 15502368
- Database :
- OpenAIRE
- Journal :
- Physical Review D, Physical Review D, American Physical Society, 2009, 79, pp.112006. ⟨10.1103/PhysRevD.79.112006⟩
- Accession number :
- edsair.doi.dedup.....fff4ae4cbdde87c977d5194b5ace6c47
- Full Text :
- https://doi.org/10.1103/PhysRevD.79.112006⟩