Search for Anomalous WW and WZ Production at

Search for Anomalous WW and WZ Production at
Author:
Publisher:
Total Pages:
Release: 2001
Genre:
ISBN:

We present a preliminary result from a search for anomalous WW and WZ production in p[bar p] collisions at[radical]s= 1.8 TeV using p[bar p][yields] e[nu]jj events observed during the 1992-1993 run of the Fermilab Tevatron collider. A fit to the p[sub T] spectrum of W(e[nu]) yields direct limits on the CP-conserving anomalous WW[gamma] and WWZ coupling parameters of -0.89

Search for Anomalous WW/WZ {r_arrow} E{nu}jj Production at D0; Busqueda de Produccion Anomala WW/WZ {r_arrow}e{nu}jj en D-Zero

Search for Anomalous WW/WZ {r_arrow} E{nu}jj Production at D0; Busqueda de Produccion Anomala WW/WZ {r_arrow}e{nu}jj en D-Zero
Author:
Publisher:
Total Pages: 126
Release: 1997
Genre:
ISBN:

A search for anomalous WW and WZ production in p{anti p} collisions at √s = 1.8 TeV using the D0 detector at Fermilab is presented. With a data sample of p{anti p} → e?jjX events corresponding to an integrated luminosity of 76.5 ± 4.1pb{sup −1}. 399 candidate events were identified, from which 387.1 ± 39.8 events were estimated to be background. No deviations from the Standard Model were seen, which predicts 16.2 ± 2.7 events. The 95% CL limit on the cross section?(p{anti p} → WW{sup −}X) was calculated to be 93.8 pb. Limits on the CP-conserving anomalous WW{sub?} and WWZ coupling parameters were obtained from a binned likelihood fit to the transverse momentum spectrum of the W boson. Assuming that the WW{sub?} and WWZ coupling parameters are equal, the 95% CL limits on the CP-conserving couplings are −0.56

Search for Anomalous WW/WZ 2!e[nu]jj Production at D0; Busqueda de Produccion Anomala WW/WZ 2![nu]jj en D-Zero

Search for Anomalous WW/WZ 2!e[nu]jj Production at D0; Busqueda de Produccion Anomala WW/WZ 2![nu]jj en D-Zero
Author:
Publisher:
Total Pages: 126
Release: 1997
Genre:
ISBN:

A search for anomalous WW and WZ production in p{anti p} collisions at √s = 1.8 TeV using the D0 detector at Fermilab is presented. With a data sample of p{anti p} → e[nu]jjX events corresponding to an integrated luminosity of 76.5 ± 4.1pb−1. 399 candidate events were identified, from which 387.1 ± 39.8 events were estimated to be background. No deviations from the Standard Model were seen, which predicts 16.2 ± 2.7 events. The 95% CL limit on the cross section [sigma](p{anti p} → W+W−X) was calculated to be 93.8 pb. Limits on the CP-conserving anomalous WW{sub {gamma}} and WWZ coupling parameters were obtained from a binned likelihood fit to the transverse momentum spectrum of the W boson. Assuming that the WW{sub {gamma}} and WWZ coupling parameters are equal, the 95% CL limits on the CP-conserving couplings are -0.56

Search for Anomalous Couplings in WW and WZ Measurements at the Tevatron (D0 and CDF Results).

Search for Anomalous Couplings in WW and WZ Measurements at the Tevatron (D0 and CDF Results).
Author:
Publisher:
Total Pages:
Release: 2001
Genre:
ISBN:

The search for WW and WZ production in p[anti p] collisions at[radical]s= 1.8 TeV using the CDF and D0 detectors is presented. Three analyses, one concentrating on the leptons+ jets decay channels and two concentrating on the dilepton decay channels are described in detail. Limits on anomalous WW[gamma] and WWZ trilinear gauge boson couplings are presented. Prospects for further study of diboson production and anomalous couplings with the Upgraded Tevatron are also presented.

Search for Anomalous Couplings in Boosted $\mathrm{ WW/WZ }\to\ell\nu\mathrm{ Q \bar{q} }$ Production in Proton-proton Collisions at $\sqrt{s}

Search for Anomalous Couplings in Boosted $\mathrm{ WW/WZ }\to\ell\nu\mathrm{ Q \bar{q} }$ Production in Proton-proton Collisions at $\sqrt{s}
Author:
Publisher:
Total Pages:
Release: 2017
Genre:
ISBN:

This Letter presents a search for new physics manifested as anomalous triple gauge boson couplings in WW and WZ diboson production in proton-proton collisions. The search is performed using events containing a W boson that decays leptonically and a W or Z boson whose decay products are merged into a single reconstructed jet. The data, collected at sqrt(s) =8 TeV with the CMS detector at the LHC, correspond to an integrated luminosity of 19 inverse femtobarns. No evidence for anomalous triple gauge couplings is found and the following 95% confidence level limits are set on their values: lambda ([-0.011,0.011]), Delta kappa[gamma] ([-0.044,0.063]), and Delta g[1,Z] ([-0.0087,0.024]). These limits are also translated into their effective field theory equivalents: c[WWW]/ Lambda^2, ([-2.7,2.7] TeV^{-2}), c[B]/ Lambda^2, ([-14,17] TeV^{-2}), and c[W]/ Lambda^2, ([-2.0,5.7] TeV^{-2}).

High Energy Physics - Proceedings Of The Fifth Latin American Symposium

High Energy Physics - Proceedings Of The Fifth Latin American Symposium
Author: Carlos Javier Solano Salinas
Publisher: World Scientific
Total Pages: 374
Release: 2006-04-21
Genre: Science
ISBN: 9814478318

This proceedings is the fifth in the series of Latin American symposiums focusing on the development, refinement and applications of high energy physics. As the principal meetings for the physics community in Latin America, it encourages collaborations and the exchange of ideas with the international physics communities. This particular symposium was also a dedication to the memory of Dr Luis Masperi.