Search for third-generation leptoquarks in $p \bar{p}$ collisions at $\sqrt{s}$ = 1.96-TeV - INSPIRE

DataBETA

Search for third-generation leptoquarks in $p \bar{p}$ collisions at $\sqrt{s}$ = 1.96-TeV

D0

Collaboration

May, 2007

8 pages

Published in:

Phys.Rev.Lett. 99 (2007) 061801

e-Print:

0705.0812 [hep-ex]

DOI:

10.1103/PhysRevLett.99.061801

PDG: Mass Limits for Leptoquarks from Pair Production

Report number:

FERMILAB-PUB-07-113-E

Experiments:

FNAL-E-0823

View in:

reference search35 citations

Citations per year

Abstract: (arXiv)

We report on a search for charge-1/3 third-generation leptoquarks (LQ) produced in ppbar collisions at sqrt(s)=1.96 TeV using the D0 detector at Fermilab. Third generation leptoquarks are assumed to be produced in pairs and to decay to a tau neutrino and a b quark with branching fraction B. We place upper limits on sigma(ppbar->LQLQbar)*B^2 as a function of the leptoquark mass M_{LQ}. Assuming B=1, we exclude at the 95% confidence level third-generation scalar leptoquarks with M_{LQ} < 229 GeV.

Note:

Submitted to PRL, LaTeX, 7 pages, 5 figures

13.85.Rm
14.80.-j
elementary particle mass
high-energy elementary particle interactions
proton-proton inclusive interactions
semileptonic decays
anti-p p: colliding beams
anti-p p: inclusive reaction
leptoquark: hadroproduction
leptoquark: pair production

References(26)

Figures(0)

Lepton Number as the Fourth Color

Jogesh C. Pati
(
- Maryland U.
)
,
Abdus Salam
(
- ICTP, Trieste and
- Imperial Coll., London
)

- Phys.Rev.D 10 (1974) 275-289,
- Phys.Rev.D 11 (1975) 703-703 (erratum)
•
DOI:
- 10.1103/PhysRevD.10.275

Signatures for Technicolor

- Phys.Rev.D 34 (1986) 1547
•
DOI:
- 10.1103/PhysRevD.34.1547

Constraints on SU(5) Type Leptoquarks

W. Buchmuller
(
- Hannover U. and
- CERN
)
,
D. Wyler
(
- Zurich, ETH
)

- Phys.Lett.B 177 (1986) 377-382
•
DOI:
- 10.1016/0370-2693(86)90771-9

New Tests for Quark and Lepton Substructure

E. Eichten
(
- Fermilab and
- Chicago U., EFI
)
,
Kenneth D. Lane
(
- Ohio State U.
)
,
Michael E. Peskin
(
- SLAC
)

- Phys.Rev.Lett. 50 (1983) 811-814,
•
DOI:
- 10.1103/PhysRevLett.50.811

Unity of All Elementary Particle Forces

H. Georgi
(
- Harvard U.
)
,
S.L. Glashow
(
- Harvard U.
)

- Phys.Rev.Lett. 32 (1974) 438-441,
- Also in *Lichtenberg, D.B. (ed.), Rosen, S.P. (ed.): Developments In The Quark Theory Of Hadrons, Vol. 1*, 492-495, and in *Froggatt, C.D., Nielsen, H.B.: Origin of symmetries* 330-333
•
DOI:
- 10.1103/PhysRevLett.32.438

A Comprehensive study of leptoquark bounds

Miriam Leurer
(
- Weizmann Inst.
)

- Phys.Rev.D 49 (1994) 333-342
•
e-Print:
- hep-ph/9309266
•
DOI:
- 10.1103/PhysRevD.49.333

Model independent constraints on leptoquarks from rare processes

Sacha Davidson
(
- UC, Berkeley, Cfpa
)
,
David C. Bailey
(
- Toronto U.
)
,
Bruce A. Campbell
(
- Alberta U.
)

- Z.Phys.C 61 (1994) 613-644
•
e-Print:
- hep-ph/9309310
•
DOI:
- 10.1007/BF01552629

$\pi \ell$ 2, $K \ell$ 3 and $K^0 - \bar{K}$ 0 Constraints on Leptoquarks and Supersymmetric Particles

Oruganti U. Shanker
(
- TRIUMF
)

- Nucl.Phys.B 204 (1982) 375-386
•
DOI:
- 10.1016/0550-3213(82)90196-1

Pair production of scalar leptoquarks at the Tevatron

- Phys.Rev.Lett. 79 (1997) 341-344
•
e-Print:
- hep-ph/9704322
•
DOI:
- 10.1103/PhysRevLett.79.341

Leptoquark pair production in hadronic interactions

Johannes Blumlein
(
- DESY, Zeuthen
)
,
Edward Boos
(
- DESY, Zeuthen and
- Moscow State U.
)
,
Alexander Kryukov
(
- DESY, Zeuthen and
- Moscow State U.
)

- Z.Phys.C 76 (1997) 137-153
•
e-Print:
- hep-ph/9610408
•
DOI:
- 10.1007/s002880050538

Search for charge 1/3 third generation leptoquarks in $p\bar{p}$ collisions at $\sqrt{s} = 1.8$ TeV

D0

Collaboration

•

B. Abbott

et al.

- Phys.Rev.Lett. 81 (1998) 38-43
•
e-Print:
- hep-ex/9803009
•
DOI:
- 10.1103/PhysRevLett.81.38

Search for Second and Third Generation Leptoquarks Including Production via Technicolor Interactions in $p\bar{p}$ Collisions at $\sqrt{s} = 1.8$ TeV

CDF

Collaboration

•

T. Affolder
(
- LBL, Berkeley
)

et al.

- Phys.Rev.Lett. 85 (2000) 2056-2061
•
e-Print:
- hep-ex/0004003
•
DOI:
- 10.1103/PhysRevLett.85.2056

Search for third generation leptoquarks in $\bar{p}p$ collisions at $\sqrt{s} = 1.8$ TeV

CDF

Collaboration

•

F. Abe
(
- KEK, Tsukuba
)

et al.

- Phys.Rev.Lett. 78 (1997) 2906-2911
•
DOI:
- 10.1103/PhysRevLett.78.2906

The Upgraded D0 Detector

D0

Collaboration

•

V.M. Abazov
(
- Dubna, JINR
)

et al.

- Nucl.Instrum.Meth.A 565 (2006) 463-537
•
e-Print:
- physics/0507191
•
DOI:
- 10.1016/j.nima.2006.05.248

Measurement of the Top Quark Mass in the Lepton + Jets Channel using the Ideogram Method

D0

Collaboration

•

V.M. Abazov
(
- Dubna, JINR
)

et al.

- Phys.Rev.D 75 (2007) 092001
•
e-Print:
- hep-ex/0702018
•
DOI:
- 10.1103/PhysRevD.75.092001

High-energy physics event generation with PYTHIA 6.1

et al.

- Comput.Phys.Commun. 135 (2001) 238-259
•
e-Print:
- hep-ph/0010017
•
DOI:
- 10.1016/S0010-4655(00)00236-8

An Update on vector boson pair production at hadron colliders

John M. Campbell
(
- Fermilab
)
,
R.Keith Ellis
(
- Fermilab
)

- Phys.Rev.D 60 (1999) 113006
•
e-Print:
- hep-ph/9905386
•
DOI:
- 10.1103/PhysRevD.60.113006

Radiative corrections to Z b anti-b production

John M. Campbell
(
- Fermilab
)
,
R.Keith Ellis
(
- Fermilab
)

- Phys.Rev.D 62 (2000) 114012
•
e-Print:
- hep-ph/0006304
•
DOI:
- 10.1103/PhysRevD.62.114012

Measurement of the t anti-t production cross section in p anti-p collisions at s**(1/2) = 1.96-TeV using secondary vertex b tagging

D0

Collaboration

•

V.M. Abazov
(
- Dubna, JINR
)

et al.

- Phys.Rev.D 74 (2006) 112004
•
e-Print:
- hep-ex/0611002
•
DOI:
- 10.1103/PhysRevD.74.112004

The Fully Differential Single Top Quark Cross-Section in Next to Leading Order QCD

B.W. Harris
(
- Robert Morris U.
)
,
Eric Laenen
(
- NIKHEF, Amsterdam and
- Utrecht U.
)
,
L. Phaf
(
- NIKHEF, Amsterdam
)
,
Z. Sullivan
(
- Fermilab
)
,
S. Weinzierl
(
- Parma U. and
- INFN, Parma
)

- Phys.Rev.D 66 (2002) 054024
•
e-Print:
- hep-ph/0207055
•
DOI:
- 10.1103/PhysRevD.66.054024

CompHEP 4.4: Automatic computations from Lagrangians to events

CompHEP

Collaboration

•

E. Boos
(
- SINP, Moscow
)

et al.

- Nucl.Instrum.Meth.A 534 (2004) 250-259
•
e-Print:
- hep-ph/0403113
•
DOI:
- 10.1016/j.nima.2004.07.096

- Nucl.Instrum.Meth.A 506 250303

Global QCD analysis of parton structure of the nucleon: CTEQ5 parton distributions

CTEQ

Collaboration

•

H.L. Lai
(
- Taiwan, Natl. Tsing Hua U.
)

et al.

- Eur.Phys.J.C 12 (2000) 375-392
•
e-Print:
- hep-ph/9903282
•
DOI:
- 10.1007/s100529900196

Search for pair production of scalar bottom quarks in $p \bar{p}$ collisions at $\sqrt{s}$ = 1.96-TeV

D0

Collaboration

•

V.M. Abazov
(
- Dubna, JINR
)

et al.

- Phys.Rev.Lett. 97 (2006) 171806
•
e-Print:
- hep-ex/0608013
•
DOI:
- 10.1103/PhysRevLett.97.171806

Confidence level computation for combining searches with small statistics

Thomas Junk
(
- Carleton U.
)

- Nucl.Instrum.Meth.A 434 (1999) 435-443
•
e-Print:
- hep-ex/9902006
•
DOI:
- 10.1016/S0168-9002(99)00498-2

1-25 of 26
1
2
25 / page