Search for first generation scalar leptoquark pairs in $p\bar{p}$ collisions at $\sqrt{s} = 1.8$ TeV

Abbott, B.

doi:10.1103/PhysRevLett.80.2051

Search for first generation scalar leptoquark pairs in $$p\bar{p}$$ collisions at $$\sqrt{s} = 1.8$$ TeV

Journal Article · Wed Oct 01 04:00:00 EDT 1997 · Phys.Rev.Lett.

DOI:https://doi.org/10.1103/PhysRevLett.80.2051· OSTI ID:1893490

Abbott, B.

We have searched for first generation scalar leptoquark (LQ) pairs in the enu+jets channel using ppbar collider data (integrated luminosity= 115 pb^-1) collected by the DZero experiment at the Fermilab Tevatron during 1992-96. The analysis yields no candidate events. We combine the results with those from the ee+jets and nunu+jets channels to obtain 95% confidence level (CL) upper limits on the LQ pair production cross section as a function of mass and of beta, the branching fraction to a charged lepton. Comparing with the next-to-leading order theory, we set 95% CL lower limits on the LQ mass of 225, 204, and 79 GeV/c^2 for beta=1, 1/2, and 0, respectively.

View Journal Article

Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)

Contributing Organization:: D0

DOE Contract Number:: AC02-07CH11359

OSTI ID:: 1893490

Report Number(s):: FERMILAB-PUB-97-344-E; arXiv:hep-ex/9710032; oai:inspirehep.net:450538

Journal Information:: Phys.Rev.Lett., Journal Name: Phys.Rev.Lett. Vol. 80

Country of Publication:: United States

Language:: English

References (21)

High-energy-physics event generation with PYTHIA 5.7 and JETSET 7.4 Sjöstrand, Torbjörn Computer Physics Communications, Vol. 82, Issue 1 https://doi.org/10.1016/0010-4655(94)90132-5	journal	August 1994
Search for lepton flavor violation in $ep$ collisions at 300 GeV center of mass energy Derrick et al., M. Zeitschrift f�r Physik C Particles and Fields, Vol. 73, Issue 4 https://doi.org/10.1007/s002880050352	journal	March 1997
Pair Production of Scalar Leptoquarks at the Fermilab Tevatron Krämer, M.; Plehn, T.; Spira, M. Physical Review Letters, Vol. 79, Issue 3 https://doi.org/10.1103/PhysRevLett.79.341	journal	July 1997
Comparison of ZEUS data with standard model predictions for $e^+p \rightarrow e^+X$ scattering at high $x$ and $Q^2$ Breitweg et al., J. Zeitschrift f�r Physik C Particles and Fields, Vol. 74, Issue 2 https://doi.org/10.1007/s002880050384	journal	April 1997
Unity of All Elementary-Particle Forces Georgi, Howard; Glashow, S. L. Physical Review Letters, Vol. 32, Issue 8 https://doi.org/10.1103/PhysRevLett.32.438	journal	February 1974
First generation leptoquark search in pp¯ collisions at √ s =1.8 TeV Abachi, S.; Abbott, B.; Abolins, M. Physical Review Letters, Vol. 72, Issue 7 https://doi.org/10.1103/PhysRevLett.72.965	journal	February 1994
Search for First Generation Leptoquark Pair Production inpp¯Collisions ats}=1.8TeV Abe, F.; Akimoto, H.; Akopian, A. Physical Review Letters, Vol. 79, Issue 22 https://doi.org/10.1103/PhysRevLett.79.4327	journal	December 1997
Search for first-generation leptoquarks inp¯pcollisions ats=1.8TeV Abe, F.; Albrow, M.; Amidei, D. Physical Review D, Vol. 48, Issue 9 https://doi.org/10.1103/PhysRevD.48.R3939	journal	November 1993
The DØ detector Abachi, S.; Abolins, M.; Acharya, B. S. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 338, Issue 2-3 https://doi.org/10.1016/0168-9002(94)91312-9	journal	January 1994
Measurement of the Top Quark Pair Production Cross Section in p p ¯ Collisions Abachi, S.; Abbott, B.; Abolins, M. Physical Review Letters, Vol. 79, Issue 7 https://doi.org/10.1103/PhysRevLett.79.1203	journal	August 1997
Lepton number as the fourth "color" Pati, Jogesh C.; Salam, Abdus Physical Review D, Vol. 10, Issue 1 https://doi.org/10.1103/PhysRevD.10.275	journal	July 1974
Observation of events at very high $Q^2$ in ep collisions at HERA Adloff et al., C. Zeitschrift f�r Physik C Particles and Fields, Vol. 74, Issue 2 https://doi.org/10.1007/s002880050383	journal	April 1997
Search for Light Top Squarks inpp¯Collisions at√s=1.8TeV Abachi, S.; Abbott, B.; Abolins, M. Physical Review Letters, Vol. 76, Issue 13 https://doi.org/10.1103/PhysRevLett.76.2222	journal	March 1996
Much ado about leptoquarks: A comprehensive analysis Hewett, JoAnne L.; Rizzo, Thomas G. Physical Review D, Vol. 56, Issue 9 https://doi.org/10.1103/PhysRevD.56.5709	journal	November 1997
HERWIG 5.1 - a Monte Carlo event generator for simulating hadron emission reactions with interfering gluons Marchesini, G.; Webber, B. R.; Abbiendi, G. Computer Physics Communications, Vol. 67, Issue 3 https://doi.org/10.1016/0010-4655(92)90055-4	journal	January 1992
Low-energy phenomenology of superstring-inspired E6 models Hewett, J. Physics Reports, Vol. 183, Issue 5-6 https://doi.org/10.1016/0370-1573(89)90071-9	journal	November 1989
Search for Scalar Leptoquark Pairs Decaying to Electrons and Jets in p ¯ p Collisions Abbott, B.; Abolins, M.; Acharya, B. S. Physical Review Letters, Vol. 79, Issue 22 https://doi.org/10.1103/PhysRevLett.79.4321	journal	December 1997
On the production of a W and jets at hadron colliders Berends, F. A.; Kuijf, H.; Tausk, B. Nuclear Physics B, Vol. 357, Issue 1 https://doi.org/10.1016/0550-3213(91)90458-A	journal	June 1991
Comprehensive study of leptoquark bounds Leurer, Miriam Physical Review D, Vol. 49, Issue 1 https://doi.org/10.1103/PhysRevD.49.333	journal	January 1994
A search for leptoquarks at HERA Aid, S.; Andreev, V.; Andrieu, B. Physics Letters B, Vol. 369, Issue 2 https://doi.org/10.1016/0370-2693(95)01601-5	journal	February 1996
JETNET 3.0—A versatile artificial neural network package Peterson, Carsten; Rögnvaldsson, Thorsteinn; Lönnblad, Leif Computer Physics Communications, Vol. 81, Issue 1-2 https://doi.org/10.1016/0010-4655(94)90120-1	journal	June 1994

Similar Records

Search for First Generation Scalar Leptoquark Pairs in {ital p}{bar {ital p}} Collisions at {radical}({ital s}) = 1.8 TeV

Journal Article · Sat Feb 28 23:00:00 EST 1998 · Physical Review Letters · OSTI ID:627540

Search for First Generation Scalar and Vector Leptoquarks

Journal Article · Tue May 01 00:00:00 EDT 2001 · Phys.Rev.D · OSTI ID:1892218

Search for second generation leptoquark pairs in $\bar{p}p$ collisions at $\sqrt{s} = 1.8$ TeV

Journal Article · Fri Oct 01 00:00:00 EDT 1999 · Phys.Rev.Lett. · OSTI ID:1893440

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Search for first generation scalar leptoquark pairs in $$p\bar{p}$$ collisions at $$\sqrt{s} = 1.8$$ TeV

Citation Formats

References (21)

Similar Records

Related Subjects