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Author Grinstein, S. ♦ Mostafa, M. ♦ Piegaia, R. ♦ Alves, G. A. ♦ Carvalho, W. ♦ Maciel, A. K. ♦ da Motta, H. ♦ Oliveira, E. ♦ Santoro, A. ♦ Lima, J. G. ♦ Oguri, V. ♦ Gomez, B. ♦ Hoeneisen, B. ♦ Mooney, P. ♦ Negret, J. P. ♦ Ducros, Y. ♦ Beri, S. B. ♦ Bhatnagar, V. ♦ Kohli, J. M. ♦ Singh, J. B. ♦ Shivpuri, R. K. ♦ Acharya, B. S. ♦ Banerjee, S. ♦ Dugad, S. R. ♦ Gupta, A. ♦ Krishnaswamy, M. R. ♦ Mondal, N. K. ♦ Narasimham, V. S. ♦ Parua, N. ♦ Shankar, H. C. ♦ Park, Y. M. ♦ Choi, S. ♦ Kim, S. K. ♦ Castilla-Valdez, H. ♦ Gonzalez Solis, J. L. ♦ Hernandez-Montoya, R. ♦ Magana-Mendoza, L. ♦ Sanchez-Hernandez, A. ♦ Pawlik, B. ♦ Gavrilov, V. ♦ Gershtein, Y. ♦ Kuleshov, S. ♦ Belyaev, A. ♦ Dudko, L. V. ♦ Ermolov, P. ♦ Karmanov, D. ♦ Leflat, A. ♦ Manankov, V. ♦ Merkin, M. ♦ Shabalina, E. ♦ Abramov, V. ♦ Babintsev, V. V. ♦ Bezzubov, V. A. ♦ Bojko, N. I. ♦ Burtovoi, V. S. ♦ Chekulaev, S. V. ♦ Denisov, S. P. ♦ Dyshkant, A. ♦ Eroshin, O. V. ♦ Evdokimov, V. N. ♦ Galyaev, A. N. ♦ Goncharov, P. I. ♦ Gurzhiev, S. N. ♦ Kostritskiy, A. V. ♦ Kozelov, A. V. ♦ Kozlovsky, E. A. ♦ Mayorov, A. A. ♦ Babukhadia, L. ♦ Davis, K. ♦ Fein, D. ♦ Forden, G. E. ♦ Guida, J. A. ♦ Johns, K. ♦ Nang, F. ♦ Narayanan, A. ♦ Rutherfoord, J. ♦ Shupe, M. ♦ Barberis, E. ♦ Clark, A. R. ♦ Dahl, O. I.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ STANDARD MODEL ♦ W PLUS BOSONS ♦ W MINUS BOSONS ♦ Z NEUTRAL BOSONS ♦ PROTON-ANTIPROTON INTERACTIONS ♦ FERMILAB TEVATRON ♦ BRANCHING RATIO ♦ MUONS PLUS ♦ MUONS MINUS ♦ LEPTONIC DECAY ♦ NEUTRINOS ♦ ELECTRONS ♦ POSITRONS
Abstract DO/ has measured the inclusive production cross section of {ital W} and {ital Z} bosons in a sample of 13 pb{sup {minus}1} of data collected at the Fermilab Tevatron. The cross sections, multiplied by their leptonic branching fractions, for production in p{bar p} collisions at {radical} (s) =1.8 TeV are {sigma}{sub W} B(W{r_arrow}e {nu})=2.36 {plus_minus} 0.02 {plus_minus} 0.08 {plus_minus} 0.13nb, {sigma} {sub W} B(W{r_arrow}{mu}{nu})=2.09 {plus_minus} 0.06 {plus_minus} 0.22 {plus_minus} 0.11nb, {sigma} {sub Z} B(Z{r_arrow}e {sup +} e {sup {minus}})=0.218{plus_minus} 0.008 {plus_minus} 0.008 {plus_minus} 0.012nb, and {sigma} {sub Z} B(Z{r_arrow}{mu} {sup +} {mu} {sup {minus}})=0.178 {plus_minus} 0.022 {plus_minus} 0.021{plus_minus} 0.009nb, where the first uncertainty is statistical and the second systematic; the third reflects the uncertainty in the integrated luminosity. For the combined electron and muon analyses, we find {sigma} {sub W} B(W{r_arrow} l {nu})/{sigma} {sub Z} B(Z{r_arrow}l {sup +}l {sup {minus}})=10.90 {plus_minus} 0.52. Assuming standard model couplings, we use this result to determine the width of the {ital W} boson, and obtain {Gamma} (W)=2.044 {plus_minus} 0.097 GeV. {copyright} {ital 1999} {ital The American Physical Society}
ISSN 05562821
Educational Use Research
Learning Resource Type Article
Publisher Date 1999-09-01
Publisher Place United States
Journal Physical Review, D
Volume Number 60
Issue Number 5


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