Measurement of D* mesons in jets from p+p collisions at sqrt [s]=200 GeV

Measurement of D* mesons in jets from p+p collisions at sqrt [s]=200 GeV

We report the measurement of charged D[superscript *] mesons in inclusive jets produced in proton-proton collisions at a center-of-mass energy sqrt [s]=200  GeV with the STAR experiment at the Relativistic Heavy Ion Collider. For D[superscript *] mesons with fractional momenta 0.2<z<0.5 in inc...

Full description

Bibliographic Details
Main Authors: Sakuma, Tai, Leight, William Axel, Kocoloski, Adam Philip, Jones, Christopher LaDon, Corliss, Ross Cameron, Betancourt, Michael Joseph, Balewski, Jan T., Surrow, Bernd, Walker, Matthew H, Redwine, Robert P, Milner, Richard G, Hoffman, Alan Michael
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:en_US
Published: American Physical Society 2010
Online Access:http://hdl.handle.net/1721.1/51785
https://orcid.org/0000-0002-5515-4563
https://orcid.org/0000-0001-5839-707X
https://orcid.org/0000-0002-0031-1963
https://orcid.org/0000-0002-9107-6312
Description
Summary:We report the measurement of charged D[superscript *] mesons in inclusive jets produced in proton-proton collisions at a center-of-mass energy sqrt [s]=200  GeV with the STAR experiment at the Relativistic Heavy Ion Collider. For D[superscript *] 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[superscript *][superscript +]+D[superscript *][superscript -])/N(jet)=0.015±0.008(stat)±0.007(sys). This rate is consistent with perturbative QCD evaluation of gluon splitting into a pair of charm quarks and subsequent hadronization.

Similar Items