Improved measurement of the triple gauge-boson couplings γWW and ZWW in e+e− collisions

Physics

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https://doi.org/10.1016/j.physletb.2005.03.058
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Improved measurement of the triple gauge-boson couplings γWW and ZWW in e+e− collisions. / ALEPH Collaboration.
In: Physics Letters B, Vol. 614, No. 1-2, 12.05.2005, p. 7-26.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

ALEPH Collaboration 2005, 'Improved measurement of the triple gauge-boson couplings γWW and ZWW in e+e− collisions', Physics Letters B, vol. 614, no. 1-2, pp. 7-26. https://doi.org/10.1016/j.physletb.2005.03.058

APA

ALEPH Collaboration (2005). Improved measurement of the triple gauge-boson couplings γWW and ZWW in e+e− collisions. Physics Letters B, 614(1-2), 7-26. https://doi.org/10.1016/j.physletb.2005.03.058

Vancouver

ALEPH Collaboration. Improved measurement of the triple gauge-boson couplings γWW and ZWW in e+e− collisions. Physics Letters B. 2005 May 12;614(1-2):7-26. doi: 10.1016/j.physletb.2005.03.058

Author

ALEPH Collaboration. / Improved measurement of the triple gauge-boson couplings γWW and ZWW in e+e− collisions. In: Physics Letters B. 2005 ; Vol. 614, No. 1-2. pp. 7-26.

Bibtex

@article{3ed5477e3e3f4debb0bdb6bf2b00bcc6,

title = "Improved measurement of the triple gauge-boson couplings γWW and ZWW in e+e− collisions",

abstract = "Triple gauge-boson couplings γWW and ZWW involving single-photon, single-W and W-pair production are determined using data samples collected at LEP with the ALEPH detector at centre-of-mass energies between 183 and 209 GeV. The integrated luminosity used is 700 pb−1 for the single-photon measurement and 683 pb−1 for the W channels. Restricting the measurement to C- and P-conserving terms and applying local SU(2)L×U(1)Y gauge invariance, the measured values of the parameters , κγ and λγ are: κγ=0.971±0.055(stat)±0.030(syst), λγ=−0.012±0.027(stat)±0.011(syst)for single-parameter fits, where the two other parameters are fixed to their Standard Model values. Results are also presented for the cases where two or all three couplings are allowed to vary. An additional analysis using W-pair events is performed to measure the unconstrained real and imaginary parts of all 14 triple gauge-boson couplings and to perform an indirect search for a techni-ρ resonance. No deviations from the Standard Model expectations are observed and the lower limit on the techni-ρ mass is set to 600 GeV/c2 at 95% confidence level.",

author = "S. Schael and Evelina Bouhova-Thacker and Christopher Bowdery and Alexander Finch and Frank Foster and Gareth Hughes and Roger Jones and Maria Smizanska and {ALEPH Collaboration}",

note = "Author list is partial - see original article for full author list.",

year = "2005",

month = may,

day = "12",

doi = "10.1016/j.physletb.2005.03.058",

language = "English",

volume = "614",

pages = "7--26",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "ELSEVIER SCIENCE BV",

number = "1-2",

}

RIS

TY - JOUR

T1 - Improved measurement of the triple gauge-boson couplings γWW and ZWW in e+e− collisions

AU - Schael, S.

AU - Bouhova-Thacker, Evelina

AU - Bowdery, Christopher

AU - Finch, Alexander

AU - Foster, Frank

AU - Hughes, Gareth

AU - Jones, Roger

AU - Smizanska, Maria

AU - ALEPH Collaboration

N1 - Author list is partial - see original article for full author list.

PY - 2005/5/12

Y1 - 2005/5/12

N2 - Triple gauge-boson couplings γWW and ZWW involving single-photon, single-W and W-pair production are determined using data samples collected at LEP with the ALEPH detector at centre-of-mass energies between 183 and 209 GeV. The integrated luminosity used is 700 pb−1 for the single-photon measurement and 683 pb−1 for the W channels. Restricting the measurement to C- and P-conserving terms and applying local SU(2)L×U(1)Y gauge invariance, the measured values of the parameters , κγ and λγ are: κγ=0.971±0.055(stat)±0.030(syst), λγ=−0.012±0.027(stat)±0.011(syst)for single-parameter fits, where the two other parameters are fixed to their Standard Model values. Results are also presented for the cases where two or all three couplings are allowed to vary. An additional analysis using W-pair events is performed to measure the unconstrained real and imaginary parts of all 14 triple gauge-boson couplings and to perform an indirect search for a techni-ρ resonance. No deviations from the Standard Model expectations are observed and the lower limit on the techni-ρ mass is set to 600 GeV/c2 at 95% confidence level.

AB - Triple gauge-boson couplings γWW and ZWW involving single-photon, single-W and W-pair production are determined using data samples collected at LEP with the ALEPH detector at centre-of-mass energies between 183 and 209 GeV. The integrated luminosity used is 700 pb−1 for the single-photon measurement and 683 pb−1 for the W channels. Restricting the measurement to C- and P-conserving terms and applying local SU(2)L×U(1)Y gauge invariance, the measured values of the parameters , κγ and λγ are: κγ=0.971±0.055(stat)±0.030(syst), λγ=−0.012±0.027(stat)±0.011(syst)for single-parameter fits, where the two other parameters are fixed to their Standard Model values. Results are also presented for the cases where two or all three couplings are allowed to vary. An additional analysis using W-pair events is performed to measure the unconstrained real and imaginary parts of all 14 triple gauge-boson couplings and to perform an indirect search for a techni-ρ resonance. No deviations from the Standard Model expectations are observed and the lower limit on the techni-ρ mass is set to 600 GeV/c2 at 95% confidence level.

U2 - 10.1016/j.physletb.2005.03.058

DO - 10.1016/j.physletb.2005.03.058

M3 - Journal article

VL - 614

SP - 7

EP - 26

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

IS - 1-2

ER -

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