A Search For Scalar Bottom Quarks From Gluino Decays In Anti P P Collisions At S 1 2

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A Search For Scalar Bottom Quarks From Gluino Decays In Anti P P Collisions At S 1 2

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Author :
language : en
Publisher:
Release Date : 2005

A Search For Scalar Bottom Quarks From Gluino Decays In Anti P 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 searched for scalar bottom quarks in 156 pb−1 of {bar p}p collisions at √s = 1.96 TeV recorded by the CDF II experiment at the Tevatron. Scalar bottom quarks can be produced from gluino decays in R-parity conserving models of supersymmetry when the mass of the gluino exceeds that of the scalar bottom quark. Then, a scalar bottom quark can decay into a bottom quark and a neutralino. To search for this scenario, we investigated events with large missing transverse energy and at least three jets, two or more of which were identified as containing a secondary vertex from the hadronization of b quarks. We found four candidate events, where 2.6 ± 0.7 are expected from standard model processes, and placed 95% confidence level lower limits on gluino and scalar bottom quark masses of up to 280 and 240 GeV/c2 , respectively.

A Search For Scalar Bottom Quarks From Gluino Decays In Anti P P Collisions At S

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Author :
language : en
Publisher:
Release Date : 2005

A Search For Scalar Bottom Quarks From Gluino Decays In Anti P P Collisions At 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 2005 with categories.

We searched for scalar bottom quarks in 156 pb−1 of {bar p}p collisions at √s = 1.96 TeV recorded by the CDF II experiment at the Tevatron. Scalar bottom quarks can be produced from gluino decays in R-parity conserving models of supersymmetry when the mass of the gluino exceeds that of the scalar bottom quark. Then, a scalar bottom quark can decay into a bottom quark and a neutralino. To search for this scenario, we investigated events with large missing transverse energy and at least three jets, two or more of which were identified as containing a secondary vertex from the hadronization of b quarks. We found four candidate events, where 2.6 ± 0.7 are expected from standard model processes, and placed 95% confidence level lower limits on gluino and scalar bottom quark masses of up to 280 and 240 GeV/c2, respectively.

High Energy Physics Index

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language : en
Publisher:
Release Date : 1990

High Energy Physics Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Nuclear physics categories.

Search For Scalar Bottom Quarks From Gluino Decays In Proton Anti Proton Collisions At A Center Of Mass Energy Of 1 96 Tev

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Author : Carsten Rott
language : en
Publisher:
Release Date : 2004

Search For Scalar Bottom Quarks From Gluino Decays In Proton Anti Proton Collisions At A Center Of Mass Energy Of 1 96 Tev written by Carsten Rott and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.

The authors have performed a search for the scalar bottom quark ({tilde b}{sub 1}) from gluino ({tilde g}) decays in an R-parity conserving SUSY scenario with m{sub {tilde g}}> m{sub {tilde b}{sub 1}}, by investigating a final state of large missing transverse energy, with three or more jets, and some of them from the hadronization of b-quarks. A data sample of 156 pb{sup -1} collected by the Collider Detector at Fermilab at a center-of-mass energy of {radical}s = 1.96 TeV was used. For the final selection, jets containing secondary displaced vertices were required. This analysis has been performed ''blind'', in that the inspection of the signal region was only made after the Standard Model prediction was finalized. Comparing data with SUSY predictions, they can exclude masses of the gluino and sbottom of up to 280 and 240 GeV/c{sup 2} respectively.

Energy Research Abstracts

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language : en
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Release Date : 1985

Energy Research Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Power resources categories.

Government Reports Annual Index

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Author :
language : en
Publisher:
Release Date : 1986

Government Reports Annual Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Government reports announcements & index categories.

Inis Atomindex

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language : en
Publisher:
Release Date : 1986

Inis Atomindex written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Nuclear energy categories.

Chemical Abstracts

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language : en
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Release Date : 2002

Chemical Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Chemistry categories.

Physics Briefs

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language : en
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Release Date : 1994

Physics Briefs 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 Physics categories.

Search For Gluino Mediated Sbottom Production In P Anti P Collisions At S 1 2

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Author :
language : en
Publisher:
Release Date : 2009

Search For Gluino Mediated Sbottom Production 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 2009 with categories.

We report on a search for the supersymmetric partner of the bottom quark produced from gluino decays in data from 2.5 fb−1 of integrated luminosity collected by the Collider Detector at Fermilab at √s = 1.96 TeV. Candidate events are selected requiring two or more jets and large missing transverse energy. At least two of the jets are required to be tagged as originating from a b quark to enhance the sensitivity. The results are in good agreement with the prediction of the standard model processes, giving no evidence for gluino decay to sbottom quarks. This result constrains the gluino-pair-production cross section to be less than 40 fb at 95% credibility level for a gluino mass of 350 GeV/c2.