Limits on anomalous WWγ couplings from pp → Wγ + X events at √s = 1.8 TeV

Universidad de Buenos Aires, Buenos Aires, Argentina; DØ Collaboration

doi:10.1103/PhysRevLett.78.3634

Limits on anomalous WWγ couplings from pp → Wγ + X events at √s = 1.8 TeV

Universidad de Buenos Aires, Buenos Aires, Argentina
, DØ Collaboration

Physics and Astronomy

Fermi National Accelerator Laboratory
New York University
Michigan State University
Tata Institute of Fundamental Research
Columbia University
Rice University
University of Illinois at Chicago
Lawrence Berkeley National Laboratory
Indiana University Bloomington
Centro Brasileiro de Pesquisas Físicas
Northeastern University
University of Michigan, Ann Arbor
Iowa State University
Brookhaven National Laboratory
Stony Brook University
University of Maryland, College Park
University of Notre Dame
University of Hawai'i at Mānoa
Brown University
University of Rochester
Lomonosov Moscow State University
Panjab University
Northwestern University
Institute for High Energy Physics
University of Delhi
University of California at Riverside
Northern Illinois University
Florida State University
University of California at Davis

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65 Scopus citations

Abstract

We have measured the WW? gauge boson coupling parameters using pp → ℓνγ + X (ℓ = e,μ) events at √s=1.8 TeV. The data, corresponding to an integrated luminosity of 92.8pb^-1, were collected using the DØ detector at the Fermilab Tevatron Collider. The measured cross section times branching ratio for pp → W_γ + X with p^γ _T > 10 GeV/c and R_ℓν > 0.7 is 11.3^+1.7 _-1.5±1.5 pb, in agreement with the standard model prediction. The 1 degree of freedom 95% confidence level limits on individual CP-conserving parameters are -0.93 < Δκ < 0.94 and -0.31 < λ < 0.29. Similar limits are set on the CP-violating coupling parameters.

Original language	English
Pages (from-to)	3634-3639
Number of pages	6
Journal	Physical Review Letters
Volume	78
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevLett.78.3634
State	Published - 1997

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10.1103/PhysRevLett.78.3634

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@article{fff1c1ba42584396b5e0db608b82de54,

title = "Limits on anomalous WWγ couplings from pp → Wγ + X events at √s = 1.8 TeV",

abstract = "We have measured the WW? gauge boson coupling parameters using pp → ℓνγ + X (ℓ = e,μ) events at √s=1.8 TeV. The data, corresponding to an integrated luminosity of 92.8pb-1, were collected using the D{\O} detector at the Fermilab Tevatron Collider. The measured cross section times branching ratio for pp → Wγ + X with pγ T > 10 GeV/c and Rℓν > 0.7 is 11.3+1.7 -1.5±1.5 pb, in agreement with the standard model prediction. The 1 degree of freedom 95\% confidence level limits on individual CP-conserving parameters are -0.93 < Δκ < 0.94 and -0.31 < λ < 0.29. Similar limits are set on the CP-violating coupling parameters.",

author = "\{Universidad de Buenos Aires, Buenos Aires, Argentina\} and \{D{\O} Collaboration\} and S. Abachi and B. Abbott and M. Abolins and Acharya, \{B. S.\} and I. Adam and Adams, \{D. L.\} and M. Adams and S. Ahn and H. Aihara and G. {\'A}lvarez and Alves, \{G. A.\} and E. Amidi and N. Amos and Anderson, \{E. W.\} and Aronson, \{S. H.\} and R. Astur and Baarmand, \{M. M.\} and A. Baden and V. Balamurali and J. Balderston and B. Baldin and S. Banerjee and J. Bantly and Bartlett, \{J. F.\} and K. Bazizi and A. Belyaev and J. Bendich and Beri, \{S. B.\} and I. Bertram and Bezzubov, \{V. A.\} and Bhat, \{P. C.\} and V. Bhatnagar and M. Bhattacharjee and A. Bischoff and N. Biswas and G. Blazey and S. Blessing and P. Bloom and A. Boehnlein and Bojko, \{N. I.\} and F. Borcherding and J. Borders and C. Boswell and A. Brandt and R. Brock and A. Bross and D. Buchholz and Burtovoi, \{V. S.\} and Hobbs, \{J. D.\} and Jung, \{C. K.\}",

year = "1997",

doi = "10.1103/PhysRevLett.78.3634",

language = "English",

volume = "78",

pages = "3634--3639",

journal = "Physical Review Letters",

issn = "0031-9007",

number = "19",

}

TY - JOUR

T1 - Limits on anomalous WWγ couplings from pp → Wγ + X events at √s = 1.8 TeV

AU - Universidad de Buenos Aires, Buenos Aires, Argentina

AU - DØ Collaboration

AU - Abachi, S.

AU - Abbott, B.

AU - Abolins, M.

AU - Acharya, B. S.

AU - Adam, I.

AU - Adams, D. L.

AU - Adams, M.

AU - Ahn, S.

AU - Aihara, H.

AU - Álvarez, G.

AU - Alves, G. A.

AU - Amidi, E.

AU - Amos, N.

AU - Anderson, E. W.

AU - Aronson, S. H.

AU - Astur, R.

AU - Baarmand, M. M.

AU - Baden, A.

AU - Balamurali, V.

AU - Balderston, J.

AU - Baldin, B.

AU - Banerjee, S.

AU - Bantly, J.

AU - Bartlett, J. F.

AU - Bazizi, K.

AU - Belyaev, A.

AU - Bendich, J.

AU - Beri, S. B.

AU - Bertram, I.

AU - Bezzubov, V. A.

AU - Bhat, P. C.

AU - Bhatnagar, V.

AU - Bhattacharjee, M.

AU - Bischoff, A.

AU - Biswas, N.

AU - Blazey, G.

AU - Blessing, S.

AU - Bloom, P.

AU - Boehnlein, A.

AU - Bojko, N. I.

AU - Borcherding, F.

AU - Borders, J.

AU - Boswell, C.

AU - Brandt, A.

AU - Brock, R.

AU - Bross, A.

AU - Buchholz, D.

AU - Burtovoi, V. S.

AU - Hobbs, J. D.

AU - Jung, C. K.

PY - 1997

Y1 - 1997

N2 - We have measured the WW? gauge boson coupling parameters using pp → ℓνγ + X (ℓ = e,μ) events at √s=1.8 TeV. The data, corresponding to an integrated luminosity of 92.8pb-1, were collected using the DØ detector at the Fermilab Tevatron Collider. The measured cross section times branching ratio for pp → Wγ + X with pγ T > 10 GeV/c and Rℓν > 0.7 is 11.3+1.7 -1.5±1.5 pb, in agreement with the standard model prediction. The 1 degree of freedom 95% confidence level limits on individual CP-conserving parameters are -0.93 < Δκ < 0.94 and -0.31 < λ < 0.29. Similar limits are set on the CP-violating coupling parameters.

AB - We have measured the WW? gauge boson coupling parameters using pp → ℓνγ + X (ℓ = e,μ) events at √s=1.8 TeV. The data, corresponding to an integrated luminosity of 92.8pb-1, were collected using the DØ detector at the Fermilab Tevatron Collider. The measured cross section times branching ratio for pp → Wγ + X with pγ T > 10 GeV/c and Rℓν > 0.7 is 11.3+1.7 -1.5±1.5 pb, in agreement with the standard model prediction. The 1 degree of freedom 95% confidence level limits on individual CP-conserving parameters are -0.93 < Δκ < 0.94 and -0.31 < λ < 0.29. Similar limits are set on the CP-violating coupling parameters.

UR - https://www.scopus.com/pages/publications/4243226014

U2 - 10.1103/PhysRevLett.78.3634

DO - 10.1103/PhysRevLett.78.3634

M3 - Article

AN - SCOPUS:4243226014

SN - 0031-9007

VL - 78

SP - 3634

EP - 3639

JO - Physical Review Letters

JF - Physical Review Letters

IS - 19

ER -

Limits on anomalous WWγ couplings from pp → Wγ + X events at √s = 1.8 TeV

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