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Title: Measurement of the azimuthal angle distribution of leptons from W boson decays as a function of the W transverse momentum in pp collisions at {radical}(s)=1.8 TeV

Abstract

We present the first measurement of the A{sub 2} and A{sub 3} angular coefficients of the W boson produced in proton-antiproton collisions. We study W{yields}e{nu}{sub e} and W{yields}{mu}{nu}{sub {mu}} candidate events produced in association with at least one jet at CDF, during Run Ia and Run Ib of the Tevatron at {radical}(s)=1.8 TeV. The corresponding integrated luminosity was 110 pb{sup -1}. The jet balances the transverse momentum of the W and introduces QCD effects in W boson production. The extraction of the angular coefficients is achieved through the direct measurement of the azimuthal angle of the charged lepton in the Collins-Soper rest-frame of the W boson. The angular coefficients are measured as a function of the transverse momentum of the W boson. The electron, muon, and combined results are in good agreement with the standard model prediction, up to order {alpha}{sub s}{sup 2} in QCD.

Authors:
; ; ; ; ; ; ; ;  [1]; ; ; ; ; ;  [2]; ; ; ; ;  [3]
  1. University of Florida, Gainesville, Florida 32611 (United States)
  2. University of California at Santa Barbara, Santa Barbara, California 93106 (United States)
  3. Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States) (and others)
Publication Date:
OSTI Identifier:
20776828
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 73; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevD.73.052002; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; DISTRIBUTION; ELECTRONS; FERMILAB COLLIDER DETECTOR; FERMILAB TEVATRON; INCLUSIVE INTERACTIONS; JET MODEL; LEPTONIC DECAY; MESONS; MUONS; PROTON-ANTIPROTON INTERACTIONS; PROTON-PROTON INTERACTIONS; QUANTUM CHROMODYNAMICS; STANDARD MODEL; TEV RANGE; TRANSVERSE MOMENTUM; W MINUS BOSONS; W PLUS BOSONS

Citation Formats

Acosta, D., Field, R.D., Klimenko, S., Konigsberg, J., Korytov, A., Mitselmakher, G., Sukhanov, A., Tsybychev, D., Wang, S.M., Affolder, T., Hill, C., Incandela, J., Issever, C., Spiropulu, M., Stuart, D., Albrow, M.G., Apollinari, G., Badgett, W., Beretvas, A., and Binkley, M. Measurement of the azimuthal angle distribution of leptons from W boson decays as a function of the W transverse momentum in pp collisions at {radical}(s)=1.8 TeV. United States: N. p., 2006. Web. doi:10.1103/PhysRevD.73.052002.
Acosta, D., Field, R.D., Klimenko, S., Konigsberg, J., Korytov, A., Mitselmakher, G., Sukhanov, A., Tsybychev, D., Wang, S.M., Affolder, T., Hill, C., Incandela, J., Issever, C., Spiropulu, M., Stuart, D., Albrow, M.G., Apollinari, G., Badgett, W., Beretvas, A., & Binkley, M. Measurement of the azimuthal angle distribution of leptons from W boson decays as a function of the W transverse momentum in pp collisions at {radical}(s)=1.8 TeV. United States. doi:10.1103/PhysRevD.73.052002.
Acosta, D., Field, R.D., Klimenko, S., Konigsberg, J., Korytov, A., Mitselmakher, G., Sukhanov, A., Tsybychev, D., Wang, S.M., Affolder, T., Hill, C., Incandela, J., Issever, C., Spiropulu, M., Stuart, D., Albrow, M.G., Apollinari, G., Badgett, W., Beretvas, A., and Binkley, M. Wed . "Measurement of the azimuthal angle distribution of leptons from W boson decays as a function of the W transverse momentum in pp collisions at {radical}(s)=1.8 TeV". United States. doi:10.1103/PhysRevD.73.052002.
@article{osti_20776828,
title = {Measurement of the azimuthal angle distribution of leptons from W boson decays as a function of the W transverse momentum in pp collisions at {radical}(s)=1.8 TeV},
author = {Acosta, D. and Field, R.D. and Klimenko, S. and Konigsberg, J. and Korytov, A. and Mitselmakher, G. and Sukhanov, A. and Tsybychev, D. and Wang, S.M. and Affolder, T. and Hill, C. and Incandela, J. and Issever, C. and Spiropulu, M. and Stuart, D. and Albrow, M.G. and Apollinari, G. and Badgett, W. and Beretvas, A. and Binkley, M.},
abstractNote = {We present the first measurement of the A{sub 2} and A{sub 3} angular coefficients of the W boson produced in proton-antiproton collisions. We study W{yields}e{nu}{sub e} and W{yields}{mu}{nu}{sub {mu}} candidate events produced in association with at least one jet at CDF, during Run Ia and Run Ib of the Tevatron at {radical}(s)=1.8 TeV. The corresponding integrated luminosity was 110 pb{sup -1}. The jet balances the transverse momentum of the W and introduces QCD effects in W boson production. The extraction of the angular coefficients is achieved through the direct measurement of the azimuthal angle of the charged lepton in the Collins-Soper rest-frame of the W boson. The angular coefficients are measured as a function of the transverse momentum of the W boson. The electron, muon, and combined results are in good agreement with the standard model prediction, up to order {alpha}{sub s}{sup 2} in QCD.},
doi = {10.1103/PhysRevD.73.052002},
journal = {Physical Review. D, Particles Fields},
number = 5,
volume = 73,
place = {United States},
year = {Wed Mar 01 00:00:00 EST 2006},
month = {Wed Mar 01 00:00:00 EST 2006}
}