A Search For Neutral Higgs Bosons At High Tan Beta In Multi Jet Events From P Anti P Collisions At S 1 2

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A Search For Neutral Higgs Bosons At High Tan Beta In Multi Jet Events From P Anti P Collisions At S 1 2

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Author :
language : en
Publisher:
Release Date : 2006

A Search For Neutral Higgs Bosons At High Tan Beta In Multi Jet Events From 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 2006 with categories.

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A Search For Neutral Higgs Bosons At High Tan Beta In Multi Jet Events From P Anti P Collisions At S 1 2

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Author : Andrew C. Haas
language : en
Publisher:
Release Date : 2004

A Search For Neutral Higgs Bosons At High Tan Beta In Multi Jet Events From P Anti P Collisions At S 1 2 written by Andrew C. Haas 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 Higgs mechanism preserves the gauge symmetries of the Standard Model while giving masses to the W, Z bosons. Supersymmetry, which protects the Higgs boson mass scale from quantum corrections, predicts at least 5 Higgs bosons, none of which has been directly observed. This thesis presents a search for neutral Higgs bosons, produced in association with bottom quarks. The production rate is greatly enhanced at large values of the Supersymmetric parameter tan {beta}. High-energy p{bar p} collision data, collected from Run II of the Fermilab Tevatron using the D0 detector, are analyzed. In the absence of a signal, values of tan {beta}> 80-120 are excluded at 95% Confidence Level (C.L.), depending on the (CP-odd) neutral Higgs boson mass (studied from 100 to 150 GeV/c{sup 2}).

High Energy Physics Index

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Author :
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.

A Search For Neutral Higgs Bosons At High Tan Beta In Multi Jet Events From P Anti P Collisions At U221a S

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Author :
language : en
Publisher:
Release Date : 2004

A Search For Neutral Higgs Bosons At High Tan Beta In Multi Jet Events From P Anti P Collisions At U221a 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 2004 with categories.

The Higgs mechanism preserves the gauge symmetries of the Standard Model while giving masses to the W, Z bosons. Supersymmetry, which protects the Higgs boson mass scale from quantum corrections, predicts at least 5 Higgs bosons, none of which has been directly observed. This thesis presents a search for neutral Higgs bosons, produced in association with bottom quarks. The production rate is greatly enhanced at large values of the Supersymmetric parameter tan ?. High-energy p$\bar{p}$ collision data, collected from Run II of the Fermilab Tevatron using the D0 detector, are analyzed. In the absence of a signal, values of tan ? > 80-120 are excluded at 95% Confidence Level (C.L.), depending on the (CP-odd) neutral Higgs boson mass (studied from 100 to 150 GeV/c2).

Government Reports Announcements Index

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Author :
language : en
Publisher:
Release Date : 1996-12

Government Reports Announcements 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 1996-12 with Science categories.

A Search For Neutral Higgs Bosons At High Tan Beta In Multi Jet Events From Pp Collisions At Square Root Of S

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Author : Andrew C. Haas
language : en
Publisher:
Release Date : 2004

A Search For Neutral Higgs Bosons At High Tan Beta In Multi Jet Events From Pp Collisions At Square Root Of S written by Andrew C. Haas and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Higgs bosons categories.

Search For Neutral Higgs Bosons In Multi B Jet Events In P Bar P Collisions At Sqrt S

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Author :
language : en
Publisher:
Release Date : 2008

Search For Neutral Higgs Bosons In Multi B Jet Events 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 2008 with categories.

D0 Search For The Higgs Boson In Multijet Events

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Author : Alex Melnitchouk
language : en
Publisher:
Release Date : 2006

D0 Search For The Higgs Boson In Multijet Events written by Alex Melnitchouk and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.

We present two searches for the Higgs boson in {radical}s = 1.96 TeV p{bar p} collisions using data taken with the D0 detector during Run II of the Fermilab Tevatron collider. The first study is a search for neutral Higgs bosons produced in association with bottom quarks. The cross sections for these processes are enhanced in many extensions of the standard model (SM), such as in its minimal supersymmetric extension at large tan {beta}. The results of our analysis agree with expectations from the SM, and we use our measurements to set upper limits on the production of neutral Higgs bosons in the mass range of 90 to 150 GeV. The second study is a search for the standard model Higgs boson produced in association with the Z boson. We study the p{bar p} {yields} ZH {yields} {nu}{bar {nu}}b{bar b} channel, which is one of the most sensitive ways to search for light Higgs bosons at the Tevatron. We select multijet events with large imbalance in transverse momentum and two b-tagged jets. Then we search for a peak in invariant mass distribution of two b-tagged jets. After subtracting the backgrounds, we set the 95% C.L. upper limits on the {sigma}(p{bar p} {yields} ZH {yields} {nu}{bar {nu}}) x BR(H {yields} b{bar b}) for Higgs masses between 105 and 135 GeV.

Search For Neutral Higgs Bosons In The Multi B Jet Topology In 5 2fb 1 Of P Bar P Collisions At Sqrt S

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Author :
language : en
Publisher:
Release Date : 2010

Search For Neutral Higgs Bosons In The Multi B Jet Topology In 5 2fb 1 Of 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 2010 with categories.

Data recorded by the D0 experiment at the Fermilab Tevatron Collider are analyzed to search for neutral Higgs bosons produced in association with b quarks. The search is performed in the three-b-quark channel using multijet-triggered events corresponding to an integrated luminosity of 5.2 fb−1. In the absence of any significant excess above background, limits are set on the cross section multiplied by the branching ratio in the Higgs boson mass range 90 to 300 GeV, extending the excluded regions in the parameter space of the minimal supersymmetric standard model.

Search For Neutral Supersymmetric Higgs Bosons In Multijet Events At S

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Author :
language : en
Publisher:
Release Date : 2005

Search For Neutral Supersymmetric Higgs Bosons In Multijet Events 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 have performed a search for neutral Higgs bosons produced in association with bottom quarks in p{bar p} collisions, using 260 pb−1 of data collected with the D0 detector in Run II of the Fermilab Tevatron Collider. The cross sections for these processes are enhanced in many extensions of the standard model (SM), such as in its minimal supersymmetric extension at large tan?. The results of our analysis agree with expectations from the SM, and we use our measurements to set upper limits on the production of neutral Higgs bosons in the mass range of 90 to 150 GeV.