Search for Charged Higgs Bosons in Decays of Top Quark Pairs

Journal Article · Tue Jun 01 00:00:00 EDT 1999 · Physical Review Letters

OSTI ID:365983

Grinstein, S; Mostafa, M; Piegaia, R ^[1]; Alves, G A; Carvalho, W; Maciel, A K; da Motta, H; 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; Grudberg, P; 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 present a search for charged Higgs bosons in decays of pair-produced top quarks using 109.2{plus_minus}5.8 pb{sup {minus}1} of data recorded from p{ovr p} collisions at {radical}(s)=1.8 TeV by the D0 detector during 1992{endash}1996 at the Fermilab Tevatron. No evidence is found for charged Higgs production, and most parts of the [M{sub H{sup +}} {beta}] parameter space where the decay t{r_arrow}H{sup +}b has a branching fraction close to or larger than that for t{r_arrow}W{sup +}b are excluded at 95{percent} confidence level. Assuming m{sub t}=175 GeV and {sigma}(p{ovr p}{r_arrow} t{ovr t})=5.5 pb , for M{sub H{sup +}}=60 GeV , we exclude tan{number_sign}{beta}{lt}0.97 and tan{number_sign}{beta}{gt}40.9 . {copyright} {ital 1999} {ital The American Physical Society}

• OSTI ID: 365983
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 25 Vol. 82; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BRANCHING RATIO
FERMILAB TEVATRON
HIGGS BOSONS
PARTICLE DECAY
PROTON-ANTIPROTON INTERACTIONS
PROTON-PROTON INTERACTIONS
STANDARD MODEL
T QUARKS