Measurement of the angular distribution of electrons from [Formula Presented] decays observed in [Formula Presented] collisions at [Formula Presented] TeV

Journal Article

We present the first measurement of the electron angular distribution parameter [Formula Presented] in [Formula Presented] events produced in proton-antiproton collisions as a function of the W boson transverse momentum. Our analysis is based on data collected using the DØ detector during the 1994–1995 Fermilab Tevatron run. We compare our results with next-to-leading order perturbative QCD, which predicts an angular distribution of [Formula Presented] where [Formula Presented] is the polar angle of the electron in the Collins-Soper frame. In the presence of QCD corrections, the parameters [Formula Presented] and [Formula Presented] become functions of [Formula Presented] the W boson transverse momentum. This measurement provides a test of next-to-leading order QCD corrections which are a non-negligible contribution to the W boson mass measurement. © 2001 The American Physical Society.

Full Text

Duke Authors

Cited Authors

  • Abbott, B; Abolins, M; Abramov, V; Acharya, BS; Adams, DL; Adams, M; Alves, GA; Amos, N; Anderson, EW; Baarmand, MM; Babintsev, VV; Babukhadia, L; Baden, A; Baldin, B; Balm, PW; Banerjee, S; Bantly, J; Barberis, E; Baringer, P; Bartlett, JF; Bassler, U; Bean, A; Begel, M; Belyaev, A; Beri, SB; Bernardi, G; Bertram, I; Besson, A; Bezzubov, VA; Bhat, PC; Bhatnagar, V; Bhattacharjee, M; Blazey, G; Blessing, S; Boehnlein, A; Bojko, NI; Borcherding, F; Brandt, A; Breedon, R; Briskin, G; Brock, R; Brooijmans, G; Bross, A; Buchholz, D; Buehler, M; Buescher, V; Burtovoi, VS; Butler, JM; Canelli, F; Carvalho, W; Casey, D; Casilum, Z; Castilla-Valdez, H; Chakraborty, D; Chan, KM; Chekulaev, SV; Cho, DK; Choi, S; Chopra, S; Christenson, JH; Chung, M; Claes, D; Clark, AR; Cochran, J; Coney, L; Connolly, B; Cooper, WE; Coppage, D; Cummings, MAC; Cutts, D; Dahl, OI; Davis, GA; Davis, K; De, K; Del Signore, K; Demarteau, M; Demina, R; Demine, P; Denisov, D; Denisov, SP; Desai, S; Diehl, HT; Diesburg, M; Loreto, G; Doulas, S; Draper, P; Ducros, Y; Dudko, LV; Duensing, S; Dugad, SR; Dyshkant, A; Edmunds, D; Ellison, J; Elvira, VD; Engelmann, R; Eno, S; Eppley, G; Ermolov, P; Eroshin, OV; Estrada, J

Published Date

  • January 1, 2001

Published In

Volume / Issue

  • 63 / 7

Electronic International Standard Serial Number (EISSN)

  • 1550-2368

International Standard Serial Number (ISSN)

  • 1550-7998

Digital Object Identifier (DOI)

  • 10.1103/PhysRevD.63.072001

Citation Source

  • Scopus