Rights statement: © 2011 American Physical Society
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Precise study of the Z/gamma* boson transverse momentum distribution in ppbar collisions using a novel technique
AU - Collaboration, D0
AU - Bertram, Iain
AU - Borissov, Guennadi
AU - Fox, Harald
AU - Ross, Anthony
AU - Williams, Mark
AU - Ratoff, Peter
AU - Love, Peter
AU - Sopczak, Andre
N1 - © 2011 American Physical Society 12 pages, 3 figures
PY - 2011/3/26
Y1 - 2011/3/26
N2 - Using 7.3 pb-1 of ppbar collisions collected by the D0 detector at the Fermilab Tevatron, we measure the distribution of the variable \phistar, which probes the same physical effects as the Z/gamma* boson transverse momentum, but is less susceptible to the effects of experimental resolution and efficiency. A QCD prediction is found to describe the general features of the \phistar distribution, but is unable to describe its detailed shape or dependence on boson rapidity. A prediction that includes a broadening of transverse momentum for small values of the parton momentum fraction is strongly disfavored.
AB - Using 7.3 pb-1 of ppbar collisions collected by the D0 detector at the Fermilab Tevatron, we measure the distribution of the variable \phistar, which probes the same physical effects as the Z/gamma* boson transverse momentum, but is less susceptible to the effects of experimental resolution and efficiency. A QCD prediction is found to describe the general features of the \phistar distribution, but is unable to describe its detailed shape or dependence on boson rapidity. A prediction that includes a broadening of transverse momentum for small values of the parton momentum fraction is strongly disfavored.
U2 - 10.1103/PhysRevLett.106.122001
DO - 10.1103/PhysRevLett.106.122001
M3 - Journal article
VL - 106
JO - Physical review letters
JF - Physical review letters
SN - 1079-7114
IS - 12
M1 - 122001
ER -