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We study the potential of the TESLA linear collider operated at a center-of-mass energy of 500 to 1000 GeV for the measurement of the neutral Higgs boson properties within the framework of the MSSM. The process of associated Higgs boson…

High Energy Physics - Phenomenology · Physics 2007-05-23 K. Desch , T. Klimkovich , T. Kuhl , A. Raspereza

Searching for Higgs bosons beyond the Standard Model (BSM) is one of the most important missions for hadron colliders. As a landmark of BSM physics, the MSSM Higgs sector at the LHC is expected to be tested up to the scale of the decoupling…

High Energy Physics - Phenomenology · Physics 2016-01-20 Jan Hajer , Ying-Ying Li , Tao Liu , John F. H. Shiu

The top quark mass values from the CDF Collaboration and the precision electroweak data at LEP combined with the bottom mass value allow to establish bounds on the parameter tan beta in the minimal supersymmetric standard model (MSSM)…

High Energy Physics - Phenomenology · Physics 2007-05-23 V. A. Bednyakov , W. de Boer , S. G. Kovalenko

With the LEP II Higgs search approaching exclusion limits on low values of $\tan \beta \sim 2$ it becomes increasingly important to investigate physical quantities sensitive to large masses of a pseudoscalar Higgs mass. This regime is…

High Energy Physics - Phenomenology · Physics 2008-11-26 Michael Melles

We investigate the possibility of detecting the Higgs bosons predicted in the Minimal Supersymmetric extension of the Standard Model $(h^0, H^0, A^0, H^\pm)$, with the reactions $e^{+}e^{-}\to b\bar b h^0 (H^0, A^0)$, and $e^+e^-\to…

High Energy Physics - Phenomenology · Physics 2009-10-31 A. Gutierrez-Rodriguez , M. A. Hernandez-Ruiz , O. A. Sampayo

New analysis of the heavy, neutral MSSM Higgs bosons H and A production at the Photon Collider is presented for M_A = 200, 250, 300 and 350 GeV in the parameter range corresponding to the so called "LHC wedge" and beyond. The expected…

High Energy Physics - Phenomenology · Physics 2007-05-23 P. Niezurawski , A. F. Zarnecki , M. Krawczyk

We study the process gg -> b bbar H+ H- at large tan(beta), where it represents the dominant production mode of charged Higgs boson pairs in a Type II 2-Higgs Doublet Model, including the Minimal Supersymmetric Standard Model. The ability…

High Energy Physics - Phenomenology · Physics 2009-11-10 S. Moretti , J. Rathsman

Charged Higgs phenomenology and detection chance at future linear colliders through the production process $e^{-}e^{+} \ra H^{+}H^{-} \ra \tau^{+}\nu \tau \bar{\nu}$ is studied. Both charged Higgs bosons are considered to decay to $\tau\nu$…

High Energy Physics - Phenomenology · Physics 2015-01-13 Majid Hashemi

We study the possibility of detecting the neutral Higgs bosons predicted in the Minimal Supersymmetric Standard Model (h0, H0, A0), with the reactions e+ e- --> b b h0 (H0, A0), using the helicity formalism. We analyze the region of…

High Energy Physics - Phenomenology · Physics 2009-10-31 U. Cotti , A. Gutierrez-Rodriguez , A. Rosado , O. A. Sampayo

Results from a realistic simulation of the heavy MSSM Higgs-bosons A and H production, gamma gamma -> A,H -> b bbar, at the Photon Collider at TESLA are reported. In the scenario where a light SM-like Higgs boson h exists, we study…

High Energy Physics - Phenomenology · Physics 2007-05-23 P. Niezurawski , A. F. Zarnecki , M. Krawczyk

The observability of a charged Higgs boson produced in association with a W boson at future muon colliders is studied. The analysis is performed within the MSSM framework. The charged Higgs is assumed to decay to tb and a fully hadronic…

High Energy Physics - Phenomenology · Physics 2012-11-13 Majid Hashemi

For an electron-photon collider the complete tree-level cross sections of the reaction $\gamma e \rightarrow \nu b \bar{b} W$ are computed at center-of-mass energies between 0.5 and 2.0 TeV, for top masses of 160 to 200 GeV and Higgs masses…

High Energy Physics - Phenomenology · Physics 2011-07-19 E. Boos , A. Pukhov , M. Sachwitz , H. J. Schreiber

% insert abstract here We study the production of the Higgs bosons predicted in the Minimal Supersymmetric extension of the Standard Model $(h^0, H^0, A^0, H^\pm)$, with the reactions $e^{+}e^{-}\to b\bar b h^0 (H^0, A^0)$, and $e^+e^-\to…

High Energy Physics - Phenomenology · Physics 2016-08-16 A. Gutiérrez-Rodríguez , M. A. Hernández-Ruíz , O. A. Sampayo

The feasibility of measuring the Higgs-boson properties at the Photon Collider at TESLA has been studied in detail for masses between 200 and 350 GeV, using realistic luminosity spectra and detector simulation. We consider the Two Higgs…

High Energy Physics - Phenomenology · Physics 2008-11-26 P. Niezurawski , A. F. Zarnecki , M. Krawczyk

In this paper, we search for the regions of the phenomenological minimal supersymmetric standard model (pMSSM) parameter space where one can expect to have moderate Higgs mixing angle ($\alpha$) with relatively light (up to 600 GeV)…

High Energy Physics - Phenomenology · Physics 2015-11-19 Biplob Bhattacherjee , Amit Chakraborty , Arghya Choudhury

A search for neutral Higgs bosons of the Minimal Supersymmetric Standard Model (MSSM) is reported. The analysis is based on a sample of proton-proton collisions at a centre-of-mass energy of 7 TeV recorded with the ATLAS detector at the…

High Energy Physics - Experiment · Physics 2013-06-11 ATLAS Collaboration

We point out that present experimental limits from searches for neutral Higgs bosons at LEP already imply stringent lower bounds on the mass of the charged Higgs boson in the Minimal Supersymmetric Standard Model (MSSM); these bounds are…

High Energy Physics - Phenomenology · Physics 2009-11-19 Manuel Drees , E. Ma , P. N. Pandita , D. P. Roy , S. K. Vempati

Many extensions of the Standard Model involve two Higgs doublet fields to break the electroweak symmetry, leading to the existence of three neutral and two charged Higgs particles. In particular, this is the case of the Minimal…

High Energy Physics - Phenomenology · Physics 2012-09-04 J. Baglio , M. Beccaria , A. Djouadi , G. Macorini , E. Mirabella , N. Orlando , F. M. Renard , C. Verzegnassi

We demonstrate that expected efficiencies and purities for $b$-tagging at SSC/LHC detectors may allow detection of the Standard Model Higgs in $t\anti t \hsm$ production, with $\hsm\rta b\anti b$ decay, for $80\lsim\mhsm\lsim 130\gev$,…

High Energy Physics - Phenomenology · Physics 2009-10-22 J. Dai , J. F. Gunion , R. Vega

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…

High Energy Physics - Phenomenology · Physics 2017-06-28 Prateek Agrawal , JiJi Fan , Matthew Reece , Wei Xue