Measurement of sin2 θeff                      lept using e+e- pairs from γ∗/Z bosons produced in pp collisions at a center-of-momentum energy of 1.96 TeV

(CDF Collaboration)

doi:10.1103/PhysRevD.93.112016

Measurement of sin² θ_eff ^lept using e+e- pairs from γ^∗/Z bosons produced in pp collisions at a center-of-momentum energy of 1.96 TeV

(CDF Collaboration)

Department of Physics

University of Helsinki
National Institute for Nuclear Physics
University of Padua
University of Michigan, Ann Arbor
Fermi National Accelerator Laboratory
Northwestern University
Comenius University
Institute of Experimental Physics
Waseda University
Joint Institute for Nuclear Research
Texas A&M University
Argonne National Laboratory
University of Oxford
Kyungpook National University
Ewha Womans University
Seoul National University
Sungkyunkwan University
Korea Institute of Science and Technology Information
Chonnam National University
Jeonbuk National University
Lawrence Berkeley National Laboratory
Purdue University
Johns Hopkins University
University of Siena
University of Pisa
University of Wisconsin-Madison
Duke University
Rockefeller University
Baylor University
University of Rochester
University of Pittsburgh
The University of Chicago
University of Bologna
Michigan State University
University of Glasgow
Carnegie Mellon University
Autonomous University of Barcelona

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32 Scopus citations

Abstract

At the Fermilab Tevatron proton-antiproton (pp) collider, Drell-Yan lepton pairs are produced in the process pp→e+e-+X through an intermediate γ∗/Z boson. The forward-backward asymmetry in the polar-angle distribution of the e- as a function of the e+e - pair mass is used to obtain sin2θefflept, the effective leptonic determination of the electroweak-mixing parameter sin2θW. The measurement sample, recorded by the Collider Detector at Fermilab (CDF), corresponds to 9.4 fb-1 of integrated luminosity from pp collisions at a center-of-momentum energy of 1.96 TeV, and is the full CDF Run II data set. The value of sin2θefflept is found to be 0.23248±0.00053. The combination with the previous CDF measurement based on μ+μ- pairs yields sin2θefflept=0.23221±0.00046. This result, when interpreted within the specified context of the standard model assuming sin2θW=1-MW2/MZ2 and that the W- and Z-boson masses are on-shell, yields sin2θW=0.22400±0.00045, or equivalently a W-boson mass of 80.328±0.024 GeV/c2.

Original language	English
Article number	112016
Journal	Physical Review D
Volume	93
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevD.93.112016
State	Published - 28 Jun 2016

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10.1103/PhysRevD.93.112016

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@article{e4f69e9b03d74d01b7f473148f284edb,

title = "Measurement of sin2 θeff lept using e+e- pairs from γ∗/Z bosons produced in pp collisions at a center-of-momentum energy of 1.96 TeV",

abstract = "At the Fermilab Tevatron proton-antiproton (pp) collider, Drell-Yan lepton pairs are produced in the process pp→e+e-+X through an intermediate γ∗/Z boson. The forward-backward asymmetry in the polar-angle distribution of the e- as a function of the e+e - pair mass is used to obtain sin2θefflept, the effective leptonic determination of the electroweak-mixing parameter sin2θW. The measurement sample, recorded by the Collider Detector at Fermilab (CDF), corresponds to 9.4 fb-1 of integrated luminosity from pp collisions at a center-of-momentum energy of 1.96 TeV, and is the full CDF Run II data set. The value of sin2θefflept is found to be 0.23248±0.00053. The combination with the previous CDF measurement based on μ+μ- pairs yields sin2θefflept=0.23221±0.00046. This result, when interpreted within the specified context of the standard model assuming sin2θW=1-MW2/MZ2 and that the W- and Z-boson masses are on-shell, yields sin2θW=0.22400±0.00045, or equivalently a W-boson mass of 80.328±0.024 GeV/c2.",

author = "\{(CDF Collaboration)\} and T. Aaltonen and S. Amerio and D. Amidei and A. Anastassov and A. Annovi and J. Antos and G. Apollinari and Appel, \{J. A.\} and T. Arisawa and A. Artikov and J. Asaadi and W. Ashmanskas and B. Auerbach and A. Aurisano and F. Azfar and W. Badgett and T. Bae and A. Barbaro-Galtieri and Barnes, \{V. E.\} and Barnett, \{B. A.\} and P. Barria and P. Bartos and M. Bauce and F. Bedeschi and S. Behari and G. Bellettini and J. Bellinger and D. Benjamin and A. Beretvas and A. Bhatti and Bland, \{K. R.\} and B. Blumenfeld and A. Bocci and A. Bodek and D. Bortoletto and J. Boudreau and A. Boveia and L. Brigliadori and C. Bromberg and E. Brucken and J. Budagov and Budd, \{H. S.\} and K. Burkett and G. Busetto and P. Bussey and P. Butti and A. Buzatu and A. Calamba and S. Camarda and I. Yu",

note = "Publisher Copyright: {\textcopyright} 2016 American Physical Society.",

year = "2016",

month = jun,

day = "28",

doi = "10.1103/PhysRevD.93.112016",

language = "English",

volume = "93",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "11",

}

TY - JOUR

T1 - Measurement of sin2 θeff lept using e+e- pairs from γ∗/Z bosons produced in pp collisions at a center-of-momentum energy of 1.96 TeV

AU - (CDF Collaboration)

AU - Aaltonen, T.

AU - Amerio, S.

AU - Amidei, D.

AU - Anastassov, A.

AU - Annovi, A.

AU - Antos, J.

AU - Apollinari, G.

AU - Appel, J. A.

AU - Arisawa, T.

AU - Artikov, A.

AU - Asaadi, J.

AU - Ashmanskas, W.

AU - Auerbach, B.

AU - Aurisano, A.

AU - Azfar, F.

AU - Badgett, W.

AU - Bae, T.

AU - Barbaro-Galtieri, A.

AU - Barnes, V. E.

AU - Barnett, B. A.

AU - Barria, P.

AU - Bartos, P.

AU - Bauce, M.

AU - Bedeschi, F.

AU - Behari, S.

AU - Bellettini, G.

AU - Bellinger, J.

AU - Benjamin, D.

AU - Beretvas, A.

AU - Bhatti, A.

AU - Bland, K. R.

AU - Blumenfeld, B.

AU - Bocci, A.

AU - Bodek, A.

AU - Bortoletto, D.

AU - Boudreau, J.

AU - Boveia, A.

AU - Brigliadori, L.

AU - Bromberg, C.

AU - Brucken, E.

AU - Budagov, J.

AU - Budd, H. S.

AU - Burkett, K.

AU - Busetto, G.

AU - Bussey, P.

AU - Butti, P.

AU - Buzatu, A.

AU - Calamba, A.

AU - Camarda, S.

AU - Yu, I.

PY - 2016/6/28

Y1 - 2016/6/28

N2 - At the Fermilab Tevatron proton-antiproton (pp) collider, Drell-Yan lepton pairs are produced in the process pp→e+e-+X through an intermediate γ∗/Z boson. The forward-backward asymmetry in the polar-angle distribution of the e- as a function of the e+e - pair mass is used to obtain sin2θefflept, the effective leptonic determination of the electroweak-mixing parameter sin2θW. The measurement sample, recorded by the Collider Detector at Fermilab (CDF), corresponds to 9.4 fb-1 of integrated luminosity from pp collisions at a center-of-momentum energy of 1.96 TeV, and is the full CDF Run II data set. The value of sin2θefflept is found to be 0.23248±0.00053. The combination with the previous CDF measurement based on μ+μ- pairs yields sin2θefflept=0.23221±0.00046. This result, when interpreted within the specified context of the standard model assuming sin2θW=1-MW2/MZ2 and that the W- and Z-boson masses are on-shell, yields sin2θW=0.22400±0.00045, or equivalently a W-boson mass of 80.328±0.024 GeV/c2.

AB - At the Fermilab Tevatron proton-antiproton (pp) collider, Drell-Yan lepton pairs are produced in the process pp→e+e-+X through an intermediate γ∗/Z boson. The forward-backward asymmetry in the polar-angle distribution of the e- as a function of the e+e - pair mass is used to obtain sin2θefflept, the effective leptonic determination of the electroweak-mixing parameter sin2θW. The measurement sample, recorded by the Collider Detector at Fermilab (CDF), corresponds to 9.4 fb-1 of integrated luminosity from pp collisions at a center-of-momentum energy of 1.96 TeV, and is the full CDF Run II data set. The value of sin2θefflept is found to be 0.23248±0.00053. The combination with the previous CDF measurement based on μ+μ- pairs yields sin2θefflept=0.23221±0.00046. This result, when interpreted within the specified context of the standard model assuming sin2θW=1-MW2/MZ2 and that the W- and Z-boson masses are on-shell, yields sin2θW=0.22400±0.00045, or equivalently a W-boson mass of 80.328±0.024 GeV/c2.

UR - https://www.scopus.com/pages/publications/84977668334

U2 - 10.1103/PhysRevD.93.112016

DO - 10.1103/PhysRevD.93.112016

M3 - Article

AN - SCOPUS:84977668334

SN - 2470-0010

VL - 93

JO - Physical Review D

JF - Physical Review D

IS - 11

M1 - 112016

ER -

Measurement of sin² θ_eff ^lept using e+e- pairs from γ^∗/Z bosons produced in pp collisions at a center-of-momentum energy of 1.96 TeV

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