Measurement of the top quark mass in the dilepton channel thinsp

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

OSTI ID:365987

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; James, E; Johns, K; Nang, F; Narayanan, A; Rutherfoord, J; Shupe, M ^[16]; Aihara, H; Barberis, E; Chen, L; 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)

We report a measurement of the top quark mass using six candidate events for the process p{bar p}{r_arrow}t{bar t}+X{r_arrow}l{sup +}{nu}bl{sup {minus}}{bar {nu}}{bar b}+X, observed in the D0 experiment at the Fermilab p{bar p} collider. Using maximum likelihood fits to the dynamics of the decays, we measure a mass for the top quark of m{sub t}=168.4{plus_minus}12.3(stat){plus_minus}3.6(syst) Gev. We combine this result with our previous measurement in the t{bar t}{r_arrow}l+jets channel to obtain m{sub t}=172.1{plus_minus}7.1 GeV as the best value of the mass of the top quark measured by D0. {copyright} {ital 1999} {ital The American Physical Society}

• OSTI ID: 365987
• 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
FERMILAB TEVATRON
MASS
MONTE CARLO METHOD
PROTON-ANTIPROTON INTERACTIONS
T QUARKS