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Published: 2007
Total Pages: 4
ISBN-13:
DOWNLOAD EBOOKThe data collected at the TeVatron RunIIa have been used to look for supersymmetric charged Higgs boson and Left-Right suspersymmetric doubly charged Higgs boson. No signal of such bosons has been found and this note reports on the current analyses and their observed excluded domains in models parameter space.
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Published: 2007
Total Pages: 10
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DOWNLOAD EBOOKThis paper presents an overview of recent experimental direct searches for Higgs-boson and beyond-the-standard-model (BSM) physics shown in the plenary session at the SUSY07 conference. The results reported correspond to an integrated luminosity of up to 2 fb−1 of Run II data from p{bar p} collisions collected by the CDF and D0 experiments at the Fermilab Tevatron Collider. Searches covered include: the standard model (SM) Higgs boson (including sensitivity projections), the minimal supersymmetric extension of the standard model (MSSM), charged Higgs bosons and extended Higgs models, supersymmetric decays that conserve R-parity, gauge-mediated supersymmetric breaking models, long-lived particles, leptoquarks, extra gauge bosons, extra dimensions, and finally signature-based searches. Given the excellent performance of the collider and the continued productivity of the experiments, the Tevatron physics potential looks very promising for discovery in the coming larger data sets. In particular, the Higgs boson could be observed if its mass is light or near 160 GeV.
Author: Volker Buscher
Publisher:
Published: 2004
Total Pages: 16
ISBN-13:
DOWNLOAD EBOOKWith almost 0.5 fb{sup -1} of p{bar p}-collisions delivered in Tevatron Run II, both experiments CDF and D0 are reporting first results from a vast number of search analyses. This article summarizes the current status of Tevatron searches for Higgs bosons within the Standard Model and its extensions as well as direct searches for supersymmetric particles. Signatures for production of squarks, gluinos, charginos and neutralinos as predicted by gravity- and gauge-mediated SUSY breaking scenarios have been considered. No evidence for Higgs bosons or SUSY particles has been found so far. New limits are derived which significantly improve on existing limits.
Author: Marine Michaut
Publisher:
Published: 2006
Total Pages: 210
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DOWNLOAD EBOOKAuthor: Song Ming Wang
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Published: 2004
Total Pages: 12
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DOWNLOAD EBOOKAuthor:
Publisher:
Published: 2007
Total Pages: 6
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DOWNLOAD EBOOKTheoretical frameworks beyond the standard model predict a rich Higgs sector with multiple charged and neutral Higgs bosons. Both the CDF II and D0 experiments at the Tevatron have analyzed 1 fb−1 of p{bar p} collisions at (square root)s = 1.96TeV in search of Higgs boson production. A complete suite of results on searches for neutral, charged, and fermiophobic Higgs bosons limit the allowed production rates and constrain extended models, including the minimal supersymmetric standard model.
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Published: 2007
Total Pages: 4
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DOWNLOAD EBOOKRecent preliminary results obtained by the CDF and D0 Collaborations on searches for Higgs bosons beyond the Standard Model at Run II of the Tevatron are discussed. The data, corresponding to integrated luminosities of up to 1 fb−1, are compared to theoretical expectations. No significant excess of signal above the expected background is observed in any of the various final states examined, and so limits at 95% Confidence Level (CL) are presented.
Author: Sasha Baroiant
Publisher:
Published: 2006
Total Pages: 374
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DOWNLOAD EBOOKAuthor: A. Hocker
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Published: 2006
Total Pages: 4
ISBN-13:
DOWNLOAD EBOOKThe CDF and D0 experiments at Fermilab's Tevatron have been actively searching for the Higgs bosons that appear in extensions of the minimal standard model. Here we present the results of searches for the neutral and charged Higgs bosons of the minimal supersymmetric standard model, as well as searches for doubly charged Higgs bosons that are predicted by other types of extensions. Up to 900 pb{sup -1} of Run 2 data have been analyzed and have provided no signs of Higgs boson production; these null results are used to set limits on Higgs production scenarios within the context of particular models.
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Published: 2001
Total Pages:
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DOWNLOAD EBOOKWe present results of a direct search for charged Higgs production from[ital p][ital[anti p]] collisions at[radical]s= 1.8 TeV at Fermilab's Tevatron collider using the CDF detector. An expanded Higgs sector containing charged Higgs bosons is a persistent feature of candidate theories to replace the Standard Model. The minimal supersymmetric extension of the Standard Model, for example predicts that the dominant decay mode of the top quark is[ital t][r-arrow] H[sup+][ital b][r-arrow][tau][sup+][ital vb] for large values of tan[Beta]. We use the hadronic decays of the tau lepton in this channel to exclude charged Higgs bosons with M[sub H[sup[+-]]][lt] 140 GeV/c[sup 2] for large tan[Beta].
