Interpretation of Transverse Momentum and Rapidity Dependence on Angular Distributions of Z-boson Production at LHC

We show that the transverse momentum (pT) spectrum of Z boson production measured at Fermilab Tevatron can be well reproduced by leading-order event generators if Z + 1 jet processes are included with a proper solution for the double-count problem and if the parton shower (PS) branch kinematics are defined appropriately. The choice of the PS evolution variable does not definitely determine the low-pT behavior. Our new event generator employing the limited leading-log (LLL) subtraction and a built-in leading-log PS reproduces the spectrum very well, not only in large pT regions but also at low pT down to pT = 0.

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Transverse momentum distribution in Drell-Yan pair and W and Z boson production

Nuclear Physics B ◽

10.1016/0550-3213(85)90479-1 ◽

1985 ◽

Vol 250 (1-4) ◽

pp. 199-224 ◽

Cited By ~ 782

Author(s):

J.C. Collins ◽

Davison E. Soper ◽

George Sterman

Keyword(s):

Transverse Momentum ◽

Momentum Distribution ◽

Z Boson ◽

Transverse Momentum Distribution ◽

Boson Production

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Interpretation of angular distributions of Z-boson production at colliders

Physics Letters B ◽

10.1016/j.physletb.2016.05.035 ◽

2016 ◽

Vol 758 ◽

pp. 384-388 ◽

Cited By ~ 19

Author(s):

Jen-Chieh Peng ◽

Wen-Chen Chang ◽

Randall Evan McClellan ◽

Oleg Teryaev

Keyword(s):

Z Boson ◽

Angular Distributions ◽

Boson Production

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Extraction of partonic transverse momentum distributions from semi-inclusive deep-inelastic scattering, Drell-Yan and Z-boson production

Journal of High Energy Physics ◽

10.1007/jhep06(2017)081 ◽

2017 ◽

Vol 2017 (6) ◽

Cited By ~ 56

Author(s):

Alessandro Bacchetta ◽

Filippo Delcarro ◽

Cristian Pisano ◽

Marco Radici ◽

Andrea Signori

Keyword(s):

Transverse Momentum ◽

Inelastic Scattering ◽

Deep Inelastic Scattering ◽

Z Boson ◽

Boson Production ◽

High Transverse Momentum ◽

Momentum Distributions ◽

Fixed Order ◽

Global Fit ◽

Logarithmic Accuracy

Abstract We present an extraction of unpolarized partonic transverse momentum distributions (TMDs) from a simultaneous fit of available data measured in semi-inclusive deep-inelastic scattering, Drell-Yan and Z boson production. To connect data at different scales, we use TMD evolution at next-to-leading logarithmic accuracy. The analysis is restricted to the low-transverse-momentum region, with no matching to fixed-order calculations at high transverse momentum. We introduce specific choices to deal with TMD evolution at low scales, of the order of 1 GeV2. This could be considered as a first attempt at a global fit of TMDs.

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THE UNDERLYING EVENT IN LARGE TRANSVERSE MOMENTUM CHARGED JET AND Z-BOSON PRODUCTION

International Journal of Modern Physics A ◽

10.1142/s0217751x01006620 ◽

2001 ◽

Vol 16 (supp01a) ◽

pp. 250-254 ◽

Cited By ~ 1

Author(s):

◽

RICK FIELD

Keyword(s):

Transverse Momentum ◽

Z Boson ◽

Charged Particles ◽

Boson Production ◽

Large Transverse Momentum ◽

Initial State ◽

Underlying Event ◽

State Radiation ◽

Beam Remnant ◽

Parton Scattering

We study the behavior of the underlying event in large transverse momentum charged jet and Z-boson production at 1.8 TeV and compare with the QCD Monte-Carlo models. The data indicate that neither ISAJET or HERWIG produce enough charged particles (with pT > 0.5 GeV/c) from the "beam-beam remnant" component and that ISAJET produces too many charged particles from initial-state radiation. PYTHIA whic uses multiple parton scattering to enchance the underlying event does the best job describing the data

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