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 (open access)

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

A search for anomalous WW and WZ production in p{anti p} collisions at {radical}s = 1.8 TeV using the D0 detector at Fermilab is presented. With a data sample of p{anti p} {r_arrow} e{nu}jjX events corresponding to an integrated luminosity of 76.5 {+-} 4.1pb{sup {minus}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} {r_arrow} W{sup +}W{sup {minus}}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 {minus}0.56 < {Delta}{kappa} < 0.75 (with {lambda} = 0) and {minus}0.42 < {lambda} < 0.44 (with {Delta}{kappa} = 0), for a form factor scale {Lambda}{sub FF} = 1.5 TeV. Limits on other assumptions are also reported. These results were combined with the previous D0 WW, WZ {r_arrow} e{nu}jj published results (13.7 {+-} 0.7 pb{sup {minus}1}), and the limits …
Date: February 1, 1997
Creator: Hernandez, A. S.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Pathfinder, Volume 12, Number 1, February 1990 (open access)

Pathfinder, Volume 12, Number 1, February 1990

Newsletter of the Center for Education and Research in Free Enterprise including analyses, essays, news, and other writing about politics and economics, as well as information about the activities of the Center.
Date: February 1990
Creator: Texas A & M University. Center for Education and Research in Free Enterprise.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History