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Search for a Fourth Generation Charge -1/3 Quark via Flavor Changing Neutral Current Decay

Publication ,  Journal Article
Abachi, S; Abbott, B; Abolins, M; Acharya, BS; Adam, I; Adams, DL; Adams, M; Ahn, S; Aihara, H; Alves, GA; Amidi, E; Amos, N; Anderson, EW ...
Published in: Physical Review Letters
January 1, 1997

We report on a search for pair production of a fourth generation charge -1/3 quark (b’) in pp collisions at s = 1.8 TeV by the DØ experiment at the Fermilab Tevatron using an integrated luminosity of 93 pb-1. Both b’ quarks are assumed to decay via flavor changing neutral currents (FCNC). The search uses the signatures γ + 3 jets + μ-tag and 2γ + 2 jets. We see no significant excess of events over the expected background. We place an upper limit on the production cross section times branching fraction that is well below theoretical expectations for a b’ decaying exclusively via FCNC for b’ masses up to mz + mb. © 1996 American Physical Society.

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Published In

Physical Review Letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

January 1, 1997

Volume

78

Issue

20

Start / End Page

3818 / 3823

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

Citation

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Abachi, S., Abbott, B., Abolins, M., Acharya, B. S., Adam, I., Adams, D. L., … Fisyak, Y. (1997). Search for a Fourth Generation Charge -1/3 Quark via Flavor Changing Neutral Current Decay. Physical Review Letters, 78(20), 3818–3823. https://doi.org/10.1103/PhysRevLett.78.3818
Abachi, S., B. Abbott, M. Abolins, B. S. Acharya, I. Adam, D. L. Adams, M. Adams, et al. “Search for a Fourth Generation Charge -1/3 Quark via Flavor Changing Neutral Current Decay.” Physical Review Letters 78, no. 20 (January 1, 1997): 3818–23. https://doi.org/10.1103/PhysRevLett.78.3818.
Abachi S, Abbott B, Abolins M, Acharya BS, Adam I, Adams DL, et al. Search for a Fourth Generation Charge -1/3 Quark via Flavor Changing Neutral Current Decay. Physical Review Letters. 1997 Jan 1;78(20):3818–23.
Abachi, S., et al. “Search for a Fourth Generation Charge -1/3 Quark via Flavor Changing Neutral Current Decay.” Physical Review Letters, vol. 78, no. 20, Jan. 1997, pp. 3818–23. Scopus, doi:10.1103/PhysRevLett.78.3818.
Abachi S, Abbott B, Abolins M, Acharya BS, Adam I, Adams DL, Adams M, Ahn S, Aihara H, Alves GA, Amidi E, Amos N, Anderson EW, Astur R, Baarmand MM, Baden A, Balamurali V, Balderston J, Baldin B, Banerjee S, Bantly J, Bartlett JF, Bazizi K, 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, Borders J, Boswell C, Boehnlein AA, Brock R, Bross A, Buchholz D, Burtovoi VS, Butler JM, Carvalho W, Casey D, Castilla-Valdez H, Chakraborty D, Chang SM, Chekulaev SV, Chen LP, Chen W, Choi S, Chopra S, Choudhary BC, Christenson JH, Chung M, Claes D, Clark AR, Cobau WG, Cochran J, Cooper WE, Cretsinger C, Cullen-Vidal D, Cummings MAC, Cutts D, Dahl OI, De K, Del Signore K, Demarteau M, Denisov D, Denisov SP, Diehl HT, Diesburg M, Di Loreto G, Draper P, Drinkard J, Alitti J, Dudko LV, Dugad SR, Edmunds D, Ellison J, Elvira VD, Engelmann R, Eno S, Eppley G, Ermolov P, Eroshin OV, Evdokimov VN, Fahland T, Fatyga M, Fatyga MK, Featherly J, Feher S, Fein D, Ferbel T, Finocchiaro G, Fisk HE, Fisyak Y. Search for a Fourth Generation Charge -1/3 Quark via Flavor Changing Neutral Current Decay. Physical Review Letters. 1997 Jan 1;78(20):3818–3823.

Published In

Physical Review Letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

January 1, 1997

Volume

78

Issue

20

Start / End Page

3818 / 3823

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences