Longitudinal Double Spin Asymmetries in Heavy Flavor Production in Polarized p+p Collisions at s = 200 GeV

2009 ◽  
Author(s):  
Xiaorong Wang ◽  
Donald G. Crabb ◽  
Yelena Prok ◽  
Matt Poelker ◽  
Simonetta Liuti ◽  
...  
Keyword(s):  
Heavy Flavor ◽  
Spin Asymmetries ◽  
Double Spin ◽  
Heavy Flavor Production ◽  
200 Gev

LONGITUDINALLY POLARIZED HADRO- AND PHOTOPRODUCTION OF HEAVY QUARKS

2009 ◽  
Vol 24 (35n37) ◽  
pp. 3045-3051
Author(s):  
JOHANN RIEDL
Keyword(s):  
Spin Structure ◽  
Heavy Quarks ◽  
Monte Carlo Code ◽  
Heavy Flavor ◽  
Gluon Polarization ◽  
Order Accuracy ◽  
Spin Asymmetries ◽  
Double Spin ◽  
Heavy Flavor Production ◽  
Phenomenological Studies

Measurements of double-spin asymmetries for single-inclusive heavy flavor production and for heavy quark correlations are expected to provide valuable information about the spin structure of the nucleon, in particular, the elusive gluon polarization. We discuss progress towards a versatile parton-level Monte-Carlo code for the production and decay of heavy quarks in longitudinally polarized hadron-hadron and photon-hadron collisions at next-to-leading order accuracy of QCD. Phenomenological studies are presented for BNL-RHIC and COMPASS.

scholarly journals Longitudinal double-spin asymmetries for dijet production at intermediate pseudorapidity in polarized pp collisions at s=200  GeV

2018 ◽  
Vol 98 (3) ◽  
Author(s):  
J. Adam ◽  
L. Adamczyk ◽  
J. R. Adams ◽  
J. K. Adkins ◽  
G. Agakishiev ◽  
...  
Keyword(s):  
Pp Collisions ◽  
Dijet Production ◽  
Spin Asymmetries ◽  
Double Spin ◽  
200 Gev

scholarly journals Experimental Overview on Heavy Flavor Production in Heavy Ion Collisions.

2018 ◽  
Vol 172 ◽  
pp. 04004
Author(s):  
Cesar L. da Silva
Keyword(s):  
Heavy Ion ◽  
High Energy ◽  
Mass Hierarchy ◽  
Heavy Flavor ◽  
Nuclear Collisions ◽  
Ion Collisions ◽  
Heavy Flavor Production ◽  
200 Gev ◽  
The Media ◽  
8 Tev

The use of probes containing heavy quarks is one of the pillars for the study of medium formed in high energy nuclear collisions. The conceptual ideas formulated more than two decades ago, such as quark mass hierarchy of the energy that the probe lose in the media and color screening of bound heavy quarkonia states, have being challenged by the measurements performed at RHIC and LHC. A summary of the most recent experimental observations involving charm and bottom quarks in pp, pA, and AA collisions from collisions energies extending from √sNN =200 GeV to 8 TeV is presented. This manuscript also discuss possibilities of new measurements which can be at reach with increased statistics and detector upgrades.

scholarly journals Double-spin asymmetry of electrons from heavy-flavor decays inp+pcollisions ats=200  GeV

2013 ◽  
Vol 87 (1) ◽  
Author(s):  
A. Adare ◽  
S. Afanasiev ◽  
C. Aidala ◽  
N. N. Ajitanand ◽  
Y. Akiba ◽  
...  
Keyword(s):  
Spin Asymmetry ◽  
Heavy Flavor ◽  
Double Spin Asymmetry ◽  
Double Spin ◽  
200 Gev ◽  
Heavy Flavor Decays

Longitudinal Double-spin Asymmetries for π[sup 0] Production at Forward Rapidity in pp Collisions at s = 200 GeV at STAR

2009 ◽  
Author(s):  
Scott W. Wissink ◽  
Donald G. Crabb ◽  
Yelena Prok ◽  
Matt Poelker ◽  
Simonetta Liuti ◽  
...  
Keyword(s):  
Forward Rapidity ◽  
Pp Collisions ◽  
Spin Asymmetries ◽  
Double Spin ◽  
200 Gev

scholarly journals AN of Single Heavy Flavor Decay Muon in the PHENIX Experiment at RHIC

2016 ◽  
Vol 40 ◽  
pp. 1660043 ◽  
Author(s):  
Xiaorong Wang ◽  
Feng Wei
Keyword(s):  
Transverse Momentum ◽  
Spin Asymmetry ◽  
Single Spin Asymmetry ◽  
Transverse Spin ◽  
Heavy Flavor ◽  
Spin Asymmetries ◽  
Single Spin ◽  
Phenix Experiment ◽  
Single Spin Asymmetries ◽  
Heavy Flavor Production

Transverse single-spin asymmetries provide valuable information about the spin structure of the nucleon. At RHIC energies, heavy-flavor production is dominated by gluon-gluon fusion, and the subsequent decay into high [Formula: see text] electrons or muons can be observed statistically in a collider detector like PHENIX. The transverse single-spin asymmetry in heavy-flavor production originates from the initial state correlation between the internal transverse momentum of the parton and the transverse spin of the nucleon (similar with the known Sivers effect). The measurement of transverse single-spin asymmetry of single muons from heavy flavor decay at RHIC serves as a clean probe and would provide important information on the gluon Sivers function. In 2012, the PHENIX experiment collected 9.2 [Formula: see text] integrated luminosity in transversely polarized [Formula: see text] collisions at [Formula: see text] = 200 GeV with a polarization of [Formula: see text]. The signal-to-background ratio was improved by a factor of two compared to the previous RHIC 2006 and 2008 results in high transverse momentum region ([Formula: see text]GeV). The recent PHENIX preliminary results of transverse single-spin asymmetries of single heavy flavor decay muon at forward-rapidity will be shown and the possible improvement on this measurement in 2015 with the help of the FVTX detector will be discussed.

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