Search for Heavy Bottom-Like Quarks Decaying to an Electron or Muon and Jets in $p\bar{p}$ Collisions at $\sqrt{s}=1.96$ TeV - INSPIRE

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Search for Heavy Bottom-Like Quarks Decaying to an Electron or Muon and Jets in $p\bar{p}$ Collisions at $\sqrt{s}=1.96$ TeV

CDF

Collaboration

Jan, 2011

7 pages

Published in:

Phys.Rev.Lett. 106 (2011) 141803

e-Print:

1101.5728 [hep-ex]

DOI:

10.1103/PhysRevLett.106.141803

PDG:

{{\mathit b}^{\,'}}(-1

/3)-quark/hadron mass limits in

{{\mathit p}}{{\overline{\mathit p}}}

{{\mathit p}}{{\mathit p}}

Report number:

FERMILAB-PUB-11-023-E

Experiments:

FNAL-E-0830

View in:

reference search84 citations

Citations per year

Abstract: (arXiv)

We report the most sensitive direct search for pair production of fourth-generation bottom-like chiral quarks (

b'

) each decaying promptly to

tW

. We search for an excess of events with an electron or muon, at least five jets (one indentified as due to a

b

or

c

quark) and an imbalance of transverse momentum using data from

p\bar{p}

collisions collected by the CDF II detector at Fermilab with an integrated luminosity of 4.8 fb

^{-1}

. We observe events consistent with background expectation and calculate upper limits on the

b'

pair production cross section (

\sigma_{b\bar{b'}}\lesssim 30

fb for

m_{b'}>

375 GeV/

c^2

) and exclude

m_{b'}<372

\gevcc at 95% confidence level.

Note:

For submission to PRL

14.65.Jk
13.85.Rm
14.80.-j
12.60.-i
quark: chiral
family: 4
heavy quark: search for
heavy quark: pair production
CDF
final state: ((n)jet lepton)

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