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Title: Challenges for MSSM Higgs searches at hadron colliders

Abstract

In this article we analyze the impact of B-physics and Higgs physics at LEP on standard and non-standard Higgs bosons searches at the Tevatron and the LHC, within the framework of minimal flavor violating supersymmetric models. The B-physics constraints we consider come from the experimental measurements of the rare B-decays b {yields} s{gamma} and B{sub u} {yields} {tau}{nu} and the experimental limit on the B{sub s} {yields} {mu}{sup +}{mu}{sup -} branching ratio. We show that these constraints are severe for large values of the trilinear soft breaking parameter A{sub t}, rendering the non-standard Higgs searches at hadron colliders less promising. On the contrary these bounds are relaxed for small values of A{sub t} and large values of the Higgsino mass parameter {mu}, enhancing the prospects for the direct detection of non-standard Higgs bosons at both colliders. We also consider the available ATLAS and CMS projected sensitivities in the standard model Higgs search channels, and we discuss the LHC's ability in probing the whole MSSM parameter space. In addition we also consider the expected Tevatron collider sensitivities in the standard model Higgs h {yields} b{bar b} channel to show that it may be able to find 3 {sigma} evidence in themore » B-physics allowed regions for small or moderate values of the stop mixing parameter.« less

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
902194
Report Number(s):
FERMILAB-PUB-07-074-T
arXiv eprint number arXiv:0704.1143; TRN: US200720%%64
DOE Contract Number:
AC02-07CH11359
Resource Type:
Journal Article
Resource Relation:
Journal Name: Phys.Rev.D76:035004,2007
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS, 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BRANCHING RATIO; DETECTION; FERMILAB TEVATRON; HADRONS; HIGGS BOSONS; PHYSICS; STANDARD MODEL; Experiment-HEP, Phenomenology-HEP

Citation Formats

Carena, Marcela S., /Fermilab, Menon, A., /Argonne /Chicago U., EFI, Wagner, C.E.M., and /Argonne /Chicago U., EFI /KICP, Chicago /Chicago U. Challenges for MSSM Higgs searches at hadron colliders. United States: N. p., 2007. Web. doi:10.1103/PhysRevD.76.035004.
Carena, Marcela S., /Fermilab, Menon, A., /Argonne /Chicago U., EFI, Wagner, C.E.M., & /Argonne /Chicago U., EFI /KICP, Chicago /Chicago U. Challenges for MSSM Higgs searches at hadron colliders. United States. doi:10.1103/PhysRevD.76.035004.
Carena, Marcela S., /Fermilab, Menon, A., /Argonne /Chicago U., EFI, Wagner, C.E.M., and /Argonne /Chicago U., EFI /KICP, Chicago /Chicago U. Sun . "Challenges for MSSM Higgs searches at hadron colliders". United States. doi:10.1103/PhysRevD.76.035004. https://www.osti.gov/servlets/purl/902194.
@article{osti_902194,
title = {Challenges for MSSM Higgs searches at hadron colliders},
author = {Carena, Marcela S. and /Fermilab and Menon, A. and /Argonne /Chicago U., EFI and Wagner, C.E.M. and /Argonne /Chicago U., EFI /KICP, Chicago /Chicago U.},
abstractNote = {In this article we analyze the impact of B-physics and Higgs physics at LEP on standard and non-standard Higgs bosons searches at the Tevatron and the LHC, within the framework of minimal flavor violating supersymmetric models. The B-physics constraints we consider come from the experimental measurements of the rare B-decays b {yields} s{gamma} and B{sub u} {yields} {tau}{nu} and the experimental limit on the B{sub s} {yields} {mu}{sup +}{mu}{sup -} branching ratio. We show that these constraints are severe for large values of the trilinear soft breaking parameter A{sub t}, rendering the non-standard Higgs searches at hadron colliders less promising. On the contrary these bounds are relaxed for small values of A{sub t} and large values of the Higgsino mass parameter {mu}, enhancing the prospects for the direct detection of non-standard Higgs bosons at both colliders. We also consider the available ATLAS and CMS projected sensitivities in the standard model Higgs search channels, and we discuss the LHC's ability in probing the whole MSSM parameter space. In addition we also consider the expected Tevatron collider sensitivities in the standard model Higgs h {yields} b{bar b} channel to show that it may be able to find 3 {sigma} evidence in the B-physics allowed regions for small or moderate values of the stop mixing parameter.},
doi = {10.1103/PhysRevD.76.035004},
journal = {Phys.Rev.D76:035004,2007},
number = ,
volume = ,
place = {United States},
year = {Sun Apr 01 00:00:00 EDT 2007},
month = {Sun Apr 01 00:00:00 EDT 2007}
}
  • In this article we analyze the impact of B physics and Higgs physics at LEP on standard and nonstandard Higgs bosons searches at the Tevatron and the LHC, within the framework of minimal flavor violating supersymmetric models. The B-physics constraints we consider come from the experimental measurements of the rare B decays b-->s gamma and B{sub u}-->tau nu and the experimental limit on the B{sub s}-->{mu}{sup +}{mu}{sup -} branching ratio. We show that these constraints are severe for large values of the trilinear soft breaking parameter A{sub t}, rendering the nonstandard Higgs searches at hadron colliders less promising. On themore » contrary these bounds are relaxed for small values of A{sub t} and large values of the Higgsino mass parameter {mu}, enhancing the prospects for the direct detection of nonstandard Higgs bosons at both colliders. We also consider the available ATLAS and CMS projected sensitivities in the standard model Higgs search channels, and we discuss the LHC's ability in probing the whole MSSM parameter space. In addition we also consider the expected Tevatron collider sensitivities in the standard model Higgs h-->b[overline b] channel to show that it may be able to find 3sigma evidence in the B-physics allowed regions for small or moderate values of the stop mixing parameter.« less
  • In this article we analyze the impact of B physics and Higgs physics at LEP on standard and nonstandard Higgs bosons searches at the Tevatron and the LHC, within the framework of minimal flavor violating supersymmetric models. The B-physics constraints we consider come from the experimental measurements of the rare B decays b{yields}s{gamma} and B{sub u}{yields}{tau}{nu} and the experimental limit on the B{sub s}{yields}{mu}{sup +}{mu}{sup -} branching ratio. We show that these constraints are severe for large values of the trilinear soft breaking parameter A{sub t}, rendering the nonstandard Higgs searches at hadron colliders less promising. On the contrary thesemore » bounds are relaxed for small values of A{sub t} and large values of the Higgsino mass parameter {mu}, enhancing the prospects for the direct detection of nonstandard Higgs bosons at both colliders. We also consider the available ATLAS and CMS projected sensitivities in the standard model Higgs search channels, and we discuss the LHC's ability in probing the whole MSSM parameter space. In addition we also consider the expected Tevatron collider sensitivities in the standard model Higgs h{yields}bb channel to show that it may be able to find 3{sigma} evidence in the B-physics allowed regions for small or moderate values of the stop mixing parameter.« less
  • We present pseudorapidity and transverse-momentum distributions for the cross section for the production of the lightest neutral Higgs boson in association with a high-p{sub T} hadronic jet, calculated in the framework of the minimal supersymmetric standard model. We discuss the theoretical predictions for the differential cross sections at the CERN Large Hadron Collider and the Fermilab Tevatron for the most common benchmark scenarios.
  • Here, future hadron colliders will have a remarkable capacity to discover massive new particles, but their capabilities for precision measurements of couplings that can reveal underlying mechanisms have received less study. In this work we study the capability of future hadron colliders to shed light on a precise, focused question: is the higgs mass of 125 GeV explained by the MSSM? If supersymmetry is realized near the TeV scale, a future hadron collider could produce huge numbers of gluinos and electroweakinos. We explore whether precision measurements of their properties could allow inference of the scalar masses and tan β withmore » sufficient accuracy to test whether physics beyond the MSSM is needed to explain the higgs mass. We also discuss dark matter direct detection and precision higgs physics as complementary probes of tan β. For concreteness, we focus on the mini-split regime of MSSM parameter space at a 100 TeV pp collider, with scalar masses ranging from 10s to about 1000 TeV.« less