Transverse momentum cross section of $e^+e^-$ pairs in the $$Z$$-boson region from $$p\bar{p}$$ collisions at $$\sqrt{s}=1.96$$ TeV

Journal Article · Sun Jul 01 04:00:00 EDT 2012 · Phys.Rev.D86:052010,2012

OSTI ID:1047761

Aaltonen, T; Alvarez Gonzalez, B; Amerio, S; Amidei, D; Anastassov, A; Annovi, A; Antos, J; Apollinari, G; Appel, J A; Arisawa, T; Artikov, A

The transverse momentum cross section of e{sup +}e{sup -} pairs in the Z-boson mass region of 66-116 GeV/c{sup 2} is precisely measured using Run II data corresponding to 2.1 fb{sup -1} of integrated luminosity recorded by the Collider Detector at Fermilab. The cross section is compared with quantum chromodynamic calculations. One is a fixed-order perturbative calculation at O({alpha}{sub s}{sup 2}), and the other combines perturbative predictions at high transverse momentum with the gluon resummation formalism at low transverse momentum. Comparisons of the measurement with calculations show reasonable agreement. The measurement is of sufficient precision to allow refinements in the understanding of the transverse momentum distribution.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL
• Sponsoring Organization: DOE Office of Science
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1047761
• Report Number(s): FERMILAB-PUB-12-421-E; arXiv eprint number arXiv:1207.7138
• Journal Information: Phys.Rev.D86:052010,2012, Journal Name: Phys.Rev.D86:052010,2012
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCURACY
CROSS SECTIONS
DISTRIBUTION
Experiment-HEP
FERMILAB COLLIDER DETECTOR
GLUONS
LUMINOSITY
QUANTUM CHROMODYNAMICS
TRANSVERSE MOMENTUM