Search for charged Higgs bosons in decays of top quark pairs

被引：94

作者：

Abbott, B ^{[1
]}

Abolins, M

Abramov, V

Acharya, BS

Adam, I

Adams, DL

Adams, M

Ahn, S

Alves, GA

Amos, N

Anderson, EW

Baarmand, MM

Babintsev, VV

Babukhadia, L

Baden, A

Baldin, B

Banerjee, S

Bantly, J

Barberis, E

Baringer, P

Bartlett, JF

Belyaev, A

Beri, SB

Bertram, I

Bezzubov, VA

Bhat, PC

Bhatnagar, V

Bhattacharjee, M

Biswas, N

Blazey, G

Blessing, S

Bloom, P

Boehnlein, A

Bojko, NI

Borcherding, F

Boswell, C

Brandt, A

Breedon, R

Briskin, G

Brock, R

Bross, A

Buchholz, D

Burtovoi, VS

Butler, JM

Carvalho, W

Casey, D

Casilum, Z

Castilla-Valdez, H

Chakraborty, D

Chekulaev, SV

机构：

[1] NYU, New York, NY 10003 USA

[2] Univ Buenos Aires, Buenos Aires, DF, Argentina

[3] Ctr Brasileiro Pesquisas Fis, LAFEX, Rio De Janeiro, Brazil

[4] Univ Estado Rio de Janeiro, Rio De Janeiro, Brazil

[5] Univ Los Andes, Bogota, Colombia

[6] CEA, Serv Phys Particules, DAPNIA, Saclay, France

[7] Panjab Univ, Chandigarh 160014, India

[8] Univ Delhi, Delhi 110007, India

[9] Tata Inst Fundamental Res, Mumbai, India

[10] Kyungsung Univ, Pusan, South Korea

[11] Seoul Natl Univ, Seoul, South Korea

[12] CINVESTAV, Mexico City, DF, Mexico

[13] Inst Nucl Phys, Krakow, Poland

[14] Inst Theoret & Expt Phys, Moscow 117259, Russia

[15] Moscow State Univ, Moscow, Russia

[16] Inst High Energy Phys, Protvino, Russia

[17] Univ Arizona, Tucson, AZ 85721 USA

[18] Univ Calif Berkeley, Berkeley, CA 94720 USA

[19] Lawrence Berkeley Lab, Berkeley, CA 94720 USA

[20] Univ Calif Davis, Davis, CA 95616 USA

[21] Univ Calif Irvine, Irvine, CA 92697 USA

[22] Univ Calif Riverside, Riverside, CA 92521 USA

[23] Florida State Univ, Tallahassee, FL 32306 USA

[24] Univ Hawaii, Honolulu, HI 96822 USA

[25] Fermi Natl Accelerator Lab, Batavia, IL 60510 USA

[26] Univ Illinois, Chicago, IL 60607 USA

[27] No Illinois Univ, De Kalb, IL 60115 USA

[28] Northwestern Univ, Evanston, IL 60208 USA

[29] Indiana Univ, Bloomington, IN 47405 USA

[30] Univ Notre Dame, Notre Dame, IN 46556 USA

[31] Purdue Univ, W Lafayette, IN 47907 USA

[32] Iowa State Univ, Ames, IA 50011 USA

[33] Univ Kansas, Lawrence, KS 66045 USA

[34] Louisiana Tech Univ, Ruston, LA 71272 USA

[35] Univ Maryland, College Pk, MD 20742 USA

[36] Boston Univ, Boston, MA 02215 USA

[37] Northeastern Univ, Boston, MA 02115 USA

[38] Univ Michigan, Ann Arbor, MI 48109 USA

[39] Michigan State Univ, E Lansing, MI 48824 USA

[40] Univ Nebraska, Lincoln, NE 68588 USA

[41] Columbia Univ, New York, NY 10027 USA

[42] Univ Rochester, Rochester, NY 14627 USA

[43] SUNY Stony Brook, Stony Brook, NY 11794 USA

[44] Brookhaven Natl Lab, Upton, NY 11973 USA

[45] Langston Univ, Langston, OK 73050 USA

[46] Univ Oklahoma, Norman, OK 73019 USA

[47] Brown Univ, Providence, RI 02912 USA

[48] Univ Texas, Arlington, TX 76019 USA

[49] Texas A&M Univ, College Stn, TX 77843 USA

[50] Rice Univ, Houston, TX 77005 USA

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.82.4975

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a search for charged Higgs bosons in decays of pair-produced top quarks using 109.2 +/- 5.8 pb(-1) of data recorded from p (p) over bar collisions at root s 1.8 TeV by the D0 detector during 1992-1996 at the Fermilab Tevatron. No evidence is found for charged Higgs production, and most parts of the [MH+, tan beta] parameter space where the decay t --> H(+)b has a branching fraction close to or larger than that for t --> W(+)b are excluded at 95% confidence level. Assuming m(t) = 175 GeV and sigma(p (p) over bar --> t (t) over bar) = 5.5 pb, for MH+ = 60 GeV, we exclude tan beta < 0.97 and tan beta > 40.9.

引用

页码：4975 / 4980

页数：6

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