Measurement of {ital W} and {ital Z} boson production cross sections in p{bar p} collisions at {radical} (s) =1.8 TeV

Journal Article · Wed Sep 01 00:00:00 EDT 1999 · Physical Review, D

OSTI ID:365988

Grinstein, S; Mostafa, M; Piegaia, R ^[1]; Alves, G A; Carvalho, W; Maciel, A K; da Motta, H; Oliveira, E; Santoro, A ^[2]; Lima, J G; Oguri, V ^[3]; Gomez, B; Hoeneisen, B; Mooney, P; Negret, J P ^[4]; Ducros, Y ^[5]; Beri, S B; Bhatnagar, V; Kohli, J M; Singh, J B ^[6] ; Shivpuri, R K ^[7]; Acharya, B S; Banerjee, S; Dugad, S R; Gupta, A; Krishnaswamy, M R; Mondal, N K; Narasimham, V S; Parua, N; Shankar, H C ^[8]; Park, Y M ^[9]; Choi, S; Kim, S K ^[10]; Castilla-Valdez, H; Gonzalez Solis, J L; Hernandez-Montoya, R; Magana-Mendoza, L; Sanchez-Hernandez, A ^[11]; Pawlik, B ^[12]; Gavrilov, V; Gershtein, Y; Kuleshov, S ^[13]; Belyaev, A; Dudko, L V; Ermolov, P; Karmanov, D; Leflat, A; Manankov, V; Merkin, M; Shabalina, E ^[14]; 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 ^[15]; Babukhadia, L; Davis, K; Fein, D; Forden, G E; Guida, J A; Johns, K; Nang, F; Narayanan, A; Rutherfoord, J; Shupe, M ^[16]; Barberis, E; Clark, A R; Dahl, O I; others, and

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1. Universidad de Buenos Aires, Buenos Aires (Argentina)
2. LAFEX, Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro (Brazil)
3. Universidade do Estado do Rio de Janeiro, Rio de Janeiro (Brazil)
4. Universidad de los Andes, Bogota (Colombia)
5. DAPNIA/Service de Physique des Particules, CEA, Saclay (France)
6. Panjab University, Chandigarh (India)
7. Delhi University, Delhi (India)
8. Tata Institute of Fundamental Research, Mumbai (India)
9. Kyungsung University, Pusan (Korea)
10. Seoul National University, Seoul (Korea)
11. CINVESTAV, Mexico City (Mexico)
12. Institute of Nuclear Physics, Krakow (Poland)
13. Institute for Theoretical and Experimental Physics, Moscow (Russia)
14. Moscow State University, Moscow (Russia)
15. Institute for High Energy Physics, Protvino (Russia)
16. University of Arizona, Tucson, Arizona 85721 (United States)

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}

• OSTI ID: 365988
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 5 Vol. 60; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BRANCHING RATIO
ELECTRONS
FERMILAB TEVATRON
LEPTONIC DECAY
MUONS MINUS
MUONS PLUS
NEUTRINOS
POSITRONS
PROTON-ANTIPROTON INTERACTIONS
STANDARD MODEL
W MINUS BOSONS
W PLUS BOSONS
Z NEUTRAL BOSONS