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Title: A search for production of supersymmetric top in {bar p}p collisions at {radical}s = 1.8 TeV

Abstract

A search for the top quark`s lighter superpartner, {tilde t}{sub 1}, is being performed using {bar p}p collision data from the current Tevatron Collider run. The authors present a preliminary result of their search. Assuming the mass of the {tilde t}{sub 1} is heavier than the sum of the masses of the b quark and the SUSY chargino {tilde W}{sub 1}, they search for {tilde t}{sub 1}{bar {tilde t}}{sub 1} production, where both {tilde t}{sub 1}`s decay to b{tilde W}{sub 1}, followed by b {yields} jet, and {tilde W}{sub 1} {yields} e{nu}{tilde Z}{sub 1} or {mu}{nu}{tilde Z}{sub 1}. The {tilde t}{sub 1}{bar {tilde t}}{sub 1} signature is thus a dilepton and missing transverse energy. The principal backgrounds to this signal are t{bar t}, W+jets, W{sup +}W{sup {minus}}, Z{yields}{tau}{sup +}{tau}{sup {minus}}, and Drell-Yan. The B parameter, has been suggested by Baer et al. to distinguish the {tilde t}{sub 1}{bar {tilde t}}{sub 1} signal from background. The authors examine this B parameter in CDF events, for several {tilde t}{sub 1} masses. For m({tilde t}{sub 1})=70GeV/c{sup 2} and m(t)=170GeV/c{sup 2}, they expect approximately 10 signal events in the 50 pb{sup {minus}1} accumulated by CDF so far. The significance of the signal over backgroundmore » will be discussed.« less

Authors:
Publication Date:
OSTI Identifier:
374722
Report Number(s):
CONF-9304297-
Journal ID: BAPSA6; ISSN 0003-0503; TRN: 96:004080-0085
Resource Type:
Journal Article
Journal Name:
Bulletin of the American Physical Society
Additional Journal Information:
Journal Volume: 40; Journal Issue: 2; Conference: 1993 joint meeting of the American Physical Society and the American Association of Physics Teachers, Washington, DC (United States), 12-15 Apr 1993; Other Information: PBD: Apr 1995
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; T QUARKS; PARTICLE PRODUCTION; POSTULATED PARTICLES; SUPERSYMMETRY; PROTON-ANTIPROTON INTERACTIONS; TEV RANGE 01-10

Citation Formats

Takada, T. A search for production of supersymmetric top in {bar p}p collisions at {radical}s = 1.8 TeV. United States: N. p., 1995. Web.
Takada, T. A search for production of supersymmetric top in {bar p}p collisions at {radical}s = 1.8 TeV. United States.
Takada, T. Sat . "A search for production of supersymmetric top in {bar p}p collisions at {radical}s = 1.8 TeV". United States.
@article{osti_374722,
title = {A search for production of supersymmetric top in {bar p}p collisions at {radical}s = 1.8 TeV},
author = {Takada, T},
abstractNote = {A search for the top quark`s lighter superpartner, {tilde t}{sub 1}, is being performed using {bar p}p collision data from the current Tevatron Collider run. The authors present a preliminary result of their search. Assuming the mass of the {tilde t}{sub 1} is heavier than the sum of the masses of the b quark and the SUSY chargino {tilde W}{sub 1}, they search for {tilde t}{sub 1}{bar {tilde t}}{sub 1} production, where both {tilde t}{sub 1}`s decay to b{tilde W}{sub 1}, followed by b {yields} jet, and {tilde W}{sub 1} {yields} e{nu}{tilde Z}{sub 1} or {mu}{nu}{tilde Z}{sub 1}. The {tilde t}{sub 1}{bar {tilde t}}{sub 1} signature is thus a dilepton and missing transverse energy. The principal backgrounds to this signal are t{bar t}, W+jets, W{sup +}W{sup {minus}}, Z{yields}{tau}{sup +}{tau}{sup {minus}}, and Drell-Yan. The B parameter, has been suggested by Baer et al. to distinguish the {tilde t}{sub 1}{bar {tilde t}}{sub 1} signal from background. The authors examine this B parameter in CDF events, for several {tilde t}{sub 1} masses. For m({tilde t}{sub 1})=70GeV/c{sup 2} and m(t)=170GeV/c{sup 2}, they expect approximately 10 signal events in the 50 pb{sup {minus}1} accumulated by CDF so far. The significance of the signal over background will be discussed.},
doi = {},
url = {https://www.osti.gov/biblio/374722}, journal = {Bulletin of the American Physical Society},
number = 2,
volume = 40,
place = {United States},
year = {1995},
month = {4}
}