Search For New Physics In The Exclusive Gamma Met Final State In P Pbar Collisions At Sqrt S
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Search For New Physics In The Exclusive Gamma Met Final State In P Pbar Collisions At Sqrt S
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Author : Adam Jude Aurisano
language : en
Publisher:
Release Date : 2013
Search For New Physics In The Exclusive Gamma Met Final State In P Pbar Collisions At Sqrt S written by Adam Jude Aurisano 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.
This dissertation presents a search for heavy, long-lived, neutral particles that decay to photons in proton anti-proton collisions with a center of mass energy of 1.96 TeV at the Collider Detector at Fermilab (CDF) experiment. Such particles are typical of models of Gauge Mediated Supersymmetry Breaking (GMSB). We select events with a single photon, missing transverse energy, and little other activity in the detector. We model the photon arrival time for Standard Model and non-collision sources using a data-driven method and consider photons which have a time of arrival at the detector which is significantly delayed relative to predictions. Using 6.3 fb-1 of data collected from December 2004 to June 2010, we observe 322 events in the signal region compared to a background prediction of 287 ± 24 events. While the data are consistently above predictions, we report a model excess with a significance of 1.2 standard deviations from the null hypothesis. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/148427
Observation Of Exclusive Gamma Gamma Production In P Bar P Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2011
Observation Of Exclusive Gamma Gamma Production In P Bar P 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.
We have observed exclusive? production in proton-antiproton collisions at √s = 1.96 TeV, using data from 1.11 ± 0.07 fb−1 integrated luminosity taken by the Run II Collider Detector at Fermilab. We selected events with two electromagnetic showers, each with transverse energy E{sub T}> 2.5 GeV and pseudorapidity.
A Search For Ww Gamma And Wz Gamma Production And Constraints On Anomalous Quartic Gauge Couplings In Pp Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2014
A Search For Ww Gamma And Wz Gamma Production And Constraints On Anomalous Quartic Gauge Couplings 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 2014 with categories.
A Search In The Two Photon Final State For Evidence Of New Particle Production In Pp Collisions At Square Root 8
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Author : Rachel Paula Yohay
language : en
Publisher:
Release Date : 2012
A Search In The Two Photon Final State For Evidence Of New Particle Production In Pp Collisions At Square Root 8 written by Rachel Paula Yohay and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
A Search For New Physics In Events With Two Photons And Missing Transverse Energy In Proton Proton Collisions At Sqrt S
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Author : David Michael Morse
language : en
Publisher:
Release Date : 2013
A Search For New Physics In Events With Two Photons And Missing Transverse Energy In Proton Proton Collisions At Sqrt S written by David Michael Morse 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.
Properties Of Events Containing A Photon And Several Jets Seen In P Gamma Collisions At Square Root Of S
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Author : Peter Albert Maas
language : en
Publisher:
Release Date : 1993
Properties Of Events Containing A Photon And Several Jets Seen In P Gamma Collisions At Square Root Of S written by Peter Albert Maas and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.
Search For High Mass Photon Pairs In P Anti P Yields Gamma Gamma Jj Events At Radical
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Author :
language : en
Publisher:
Release Date : 2001
Search For High Mass Photon Pairs In P Anti P Yields Gamma Gamma Jj Events At Radical written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
A search for new physics in the channel p[anti p][yields][gamma][gamma]jj has been studied. In some extended Higgs models, a light neutral scalar Higgs boson is produced with suppressed couplings to fermions and standard model(SM) strength couplings to vector bosons(bosonic Higgs), thus enhancing the H[yields][gamma][gamma] channel. We required one photon in the event with E[sup[gamma]][sub T]> 20 GeV, [vert-bar][eta][sup[gamma]][vert-bar]1.1 or 1.5[vert-bar][eta][sup[gamma]][vert-bar]2.0 and a second photon with E[sup[gamma]][sub T] 15 GeV, [vert-bar][eta][sup[gamma]][vert-bar]1.1 or 1.5[vert-bar][eta][sup[gamma]][vert-bar]
Forward Backward Asymmetry In Lambda B Production And Search For The Xi B And Omega B Baryons In P Bar P Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2015
Forward Backward Asymmetry In Lambda B Production And Search For The Xi B And Omega B Baryons In P Bar P 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.
We present a search for the heavy-flavor baryons $\Xi_{b}$ (bsd) and $\Omega^{-}_{b}$ in decays $\Xi^{-}_{b}$→ J/[psi]$\Xi^{-}_{b}$ → J/[psi][Lambda][pi]-, J/[psi] → [mu]+ [mu]- and $\Omega^{-}_{b}$ → J/[psi]$\Omega^{-}_{b}$ J/[psi][Lambda] $K^{-}_{b}$, J/[psi] → [mu]+ [mu]- respectively.
Search For New Phenomena In Ttbar Events With Large Missing Transverse Momentum In Proton Proton Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2013
Search For New Phenomena In Ttbar Events With Large Missing Transverse Momentum 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 New Particles Decaying To Dijets In Pbar P Collisions At Radicals
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Author :
language : en
Publisher:
Release Date : 1994
Search For New Particles Decaying To Dijets In Pbar P Collisions At Radicals written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.