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Title: Search for a Heavy Top-Like Quark in $$p\bar{p}$$ Collisions at $${\surd}s = 1.96$$~TeV

Abstract

We present the results of a search for pair production of a heavy top-like (t') quark decaying to W q final states using data corresponding to an integrated luminosity of 5.6 fb{sup -1} collected by the CDF II detector in p{anti p} collisions at {radical}{ovr s} = 1.96 TeV. We perform parallel searches for t' {yields} W b and t' {yields} W q (where q is a generic down-type quark) in events containing a lepton and four or more jets. By performing a fit to the two-dimensional distribution of total transverse energy versus reconstructed t' quark mass, we set upper limits on the t'{anti t}' production cross section and exclude a standard model fourth-generation t' quark decaying to W b (W q) with mass below 358 (340) GeV/c{sup 2} at 95% CL.

Authors:
; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1021040
Report Number(s):
FERMILAB-PUB-11-333-E-PPD
arXiv eprint number arXiv:1107.3875; TRN: US201116%%687
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Journal Article
Journal Name:
Submitted to Phys.Rev.Lett.
Additional Journal Information:
Journal Name: Submitted to Phys.Rev.Lett.
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; COLLISIONS; CROSS SECTIONS; FERMILAB COLLIDER DETECTOR; JETS; LEPTONS; LUMINOSITY; MASS; PAIR PRODUCTION; PRODUCTION; PROTON-ANTIPROTON INTERACTIONS; QUARKS; STANDARD MODEL; T QUARKS; TEV RANGE 01-10; TRANSVERSE ENERGY; Experiment-HEP

Citation Formats

Aaltonen, T, /Helsinki Inst. of Phys., Alvarez Gonzalez, B, /Oviedo U. /Cantabria Inst. of Phys., Amerio, S, /INFN, Padua, Amidei, D, /Michigan U., Anastassov, A, /Northwestern U., Annovi, A, /Frascati, Antos, J, /Comenius U., Apollinari, G, /Fermilab, Appel, J A, /Fermilab, Apresyan, A, /Purdue U., Arisawa, T, and /Waseda U. /Dubna, JINR. Search for a Heavy Top-Like Quark in $p\bar{p}$ Collisions at ${\surd}s = 1.96$~TeV. United States: N. p., 2011. Web.
Aaltonen, T, /Helsinki Inst. of Phys., Alvarez Gonzalez, B, /Oviedo U. /Cantabria Inst. of Phys., Amerio, S, /INFN, Padua, Amidei, D, /Michigan U., Anastassov, A, /Northwestern U., Annovi, A, /Frascati, Antos, J, /Comenius U., Apollinari, G, /Fermilab, Appel, J A, /Fermilab, Apresyan, A, /Purdue U., Arisawa, T, & /Waseda U. /Dubna, JINR. Search for a Heavy Top-Like Quark in $p\bar{p}$ Collisions at ${\surd}s = 1.96$~TeV. United States.
Aaltonen, T, /Helsinki Inst. of Phys., Alvarez Gonzalez, B, /Oviedo U. /Cantabria Inst. of Phys., Amerio, S, /INFN, Padua, Amidei, D, /Michigan U., Anastassov, A, /Northwestern U., Annovi, A, /Frascati, Antos, J, /Comenius U., Apollinari, G, /Fermilab, Appel, J A, /Fermilab, Apresyan, A, /Purdue U., Arisawa, T, and /Waseda U. /Dubna, JINR. 2011. "Search for a Heavy Top-Like Quark in $p\bar{p}$ Collisions at ${\surd}s = 1.96$~TeV". United States. https://www.osti.gov/servlets/purl/1021040.
@article{osti_1021040,
title = {Search for a Heavy Top-Like Quark in $p\bar{p}$ Collisions at ${\surd}s = 1.96$~TeV},
author = {Aaltonen, T and /Helsinki Inst. of Phys. and Alvarez Gonzalez, B and /Oviedo U. /Cantabria Inst. of Phys. and Amerio, S and /INFN, Padua and Amidei, D and /Michigan U. and Anastassov, A and /Northwestern U. and Annovi, A and /Frascati and Antos, J and /Comenius U. and Apollinari, G and /Fermilab and Appel, J A and /Fermilab and Apresyan, A and /Purdue U. and Arisawa, T and /Waseda U. /Dubna, JINR},
abstractNote = {We present the results of a search for pair production of a heavy top-like (t') quark decaying to W q final states using data corresponding to an integrated luminosity of 5.6 fb{sup -1} collected by the CDF II detector in p{anti p} collisions at {radical}{ovr s} = 1.96 TeV. We perform parallel searches for t' {yields} W b and t' {yields} W q (where q is a generic down-type quark) in events containing a lepton and four or more jets. By performing a fit to the two-dimensional distribution of total transverse energy versus reconstructed t' quark mass, we set upper limits on the t'{anti t}' production cross section and exclude a standard model fourth-generation t' quark decaying to W b (W q) with mass below 358 (340) GeV/c{sup 2} at 95% CL.},
doi = {},
url = {https://www.osti.gov/biblio/1021040}, journal = {Submitted to Phys.Rev.Lett.},
number = ,
volume = ,
place = {United States},
year = {Fri Jul 01 00:00:00 EDT 2011},
month = {Fri Jul 01 00:00:00 EDT 2011}
}