Search For Pair Production Of First Generation Leptoquarks In P Pbar Collisions At Sqrt S
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Search For Pair Production Of First Generation Leptoquarks In P Pbar Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2009
Search For Pair Production Of First Generation Leptoquarks In P Pbar Collisions At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.
A search for pair production of first-generation leptoquarks (LQ) is performed with data collected by the D0 experiment in p{bar p} collisions at √s = 1.96 TeV at the Fermilab Tevatron Collider. In a sample of data corresponding to ≈ 1 fb−1 the search has been performed on the final states with two electrons and two jets or one electron, two jets and missing transverse energy. We find our data consistent with standard model expectations. The results are combined with those found in a previous analysis of events with two jets and missing transverse energy to obtain scalar LQ mass limits. We set 95% C.L. lower limits on a scalar LQ mass of 299 GeV, 284 GeV and 216 GeV for [beta] = 1, [beta] = 0.5 and [beta] = 0.02 respectively, where [beta] is the LQ branching ratio in the eq channel. This improves the results obtained with a lower luminosity sample from Run II of the Tevatron. Lower limits on vector LQ masses with different couplings from 357 GeV to 464 GeV for [beta] = 0.5 are also set using this analysis.
Scientific And Technical Aerospace Reports
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Author :
language : en
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Release Date : 1995
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Aeronautics categories.
Exotic Physics Search For First Generation Scalar Leptoquarks In Ppbar Collisions At Sqrt
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Author :
language : en
Publisher:
Release Date : 2005
Exotic Physics Search For First Generation Scalar Leptoquarks In Ppbar Collisions At Sqrt written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
Search For Pair Production Of First And Second Generation Leptoquarks In Proton Proton Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2015
Search For Pair Production Of First And Second Generation Leptoquarks In Proton Proton Collisions At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
Our search for pair production of first and second generation leptoquarks is performed in final states containing either two charged leptons and two jets, or one charged lepton, one neutrino and two jets, using proton-proton collision data at √s = 8 TeV. The data, corresponding to an integrated luminosity of 19.7 fb-1, were recorded with the CMS detector at the LHC. First-generation scalar leptoquarks with masses less than 1010 (850) GeV are excluded for [beta] = 1.0 (0.5), where b is the branching fraction of a leptoquark decaying to a charged lepton and a quark. Similarly, secondgeneration scalar leptoquarks with masses less than 1080 (760) GeV are excluded for [beta] = 1.0 (0.5). Furthermore, mass limits are also set for vector leptoquark production scenarios with anomalous vector couplings, and for R-parity violating supersymmetric scenarios of top squark pair production resulting in similar final-state signatures. These are the most stringent limits placed on the masses of leptoquarks and RPV top squarks to date.
Search For Pair Production Of First Or Second Generation Leptoquarks In Proton Proton Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2013
Search For Pair Production Of First Or Second Generation Leptoquarks In Proton Proton Collisions At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
Search For Pair Production Of First Generation Scalar Leptoquarks In Pp Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2010
Search For Pair Production Of First Generation Scalar Leptoquarks In Pp Collisions At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.
Search For First Generation Scalar Leptoquarks In The Evjj Channel In Pp Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2011
Search For First Generation Scalar Leptoquarks In The Evjj Channel In Pp Collisions At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
A search for pair-production of first generation scalar leptoquarks is performed in the final state containing an electron, a neutrino, and at least two jets using proton-proton collision data at sqrt(s)=7 TeV. The data were collected by the CMS detector at the LHC, corresponding to an integrated luminosity of 36 inverse picobarns. The number of observed events is in good agreement with the predictions for standard model processes. Prior CMS results in the dielectron channel are combined with this electron+neutrino search. A 95% confidence level combined lower limit is set on the mass of a first generation scalar leptoquark at 340 GeV for beta=0.5, where beta is the branching fraction of the leptoquark to an electron and a quark. These results represent the most stringent direct limits to date for values of beta greater than 0.05.
Search For Pair Production Of Second Generation Scalar Leptoquarks In Pp Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2010
Search For Pair Production Of Second Generation Scalar Leptoquarks In Pp Collisions At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.
Search For First Generation Scalar Leptoquarks In P Anti P Collisions At S 1 2
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Author :
language : en
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Release Date : 2005
Search For First Generation Scalar Leptoquarks In P Anti P Collisions At S 1 2 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
We report on a search for pair production of first-generation scalar leptoquarks (LQ) in pp collisions at √(s)=1.96 TeV using an integrated luminosity of 203 pb−1 collected at the Fermilab Tevatron collider by the CDF experiment. We observe no evidence for LQ production in the topologies arising from LQLQ→eqeq and LQLQ→eq?q, and derive 95% C.L. upper limits on the LQ production cross section. The results are combined with those obtained from a separately reported CDF search in the topology arising from LQLQ→?q?q and 95% C.L. lower limits on the LQ mass as a function of ?=BR(LQ→eq) are derived. The limits are 236, 205 and 145 GeV/c2 for ?=1, ?=0.5 and ?=0.1, respectively.
Search For Pair Production Of First Generation Scalar Leptoquarks In Proton Proton Collisions At Complex Square Root Of
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Author : Dinko Ferencek
language : en
Publisher:
Release Date : 2011
Search For Pair Production Of First Generation Scalar Leptoquarks In Proton Proton Collisions At Complex Square Root Of written by Dinko Ferencek and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.