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The loop induced coupling of an intermediate mass Higgs boson to two photons is a sensitive and unique measure for precision tests of physics beyond the Standard Model. In this work we summarize recent results on the expected precision of…

High Energy Physics - Phenomenology · Physics 2009-10-31 Michael Melles

The investigation of the properties of the Higgs boson, especially a test of the predicted linear dependence of the branching ratios on the mass of the final state is going to be an integral part of the physics program at colliders at the…

High Energy Physics - Experiment · Physics 2015-06-11 Christian Grefe , Tomas Lastovicka , Jan Strube

The $e^+e^- \to HZ$ process with the subsequent decay of the Higgs boson $H \to Z\gamma$ is studied, where both $Z$ bosons are reconstructed in the final states with two jets. The analysis is performed using Monte Carlo data samples…

High Energy Physics - Experiment · Physics 2023-02-15 E. Antonov , A. Drutskoy

An analysis of the Higgs boson decay rates to $\gamma\gamma$ and $Z\gamma$ in the Inert Doublet Model is presented. We study the correlation between the two rates and perform extended analysis of the two-photon rate ($R_{\gamma\gamma}$). We…

High Energy Physics - Phenomenology · Physics 2014-01-03 Maria Krawczyk , Dorota Sokolowska , Pawel Swaczyna , Bogumila Swiezewska

The potential to discover a Standard-Model-like Higgs boson at the LHC in the mass range from 150-180 GeV, decaying into a pair of W bosons with subsequent leptonic decays, has been established during the last 10 years. Assuming that such a…

High Energy Physics - Phenomenology · Physics 2008-11-26 G. Davatz , M. Dittmar , F. Pauss

We present a Bayesian Stacking technique to directly measure the HI mass function (HIMF) and its evolution with redshift using galaxies formally below the nominal detection threshold. We generate galaxy samples over several sky areas given…

Astrophysics of Galaxies · Physics 2020-01-08 Hengxing Pan , Matt J. Jarvis , James R. Allison , Ian Heywood , Mario G. Santos , Natasha Maddox , Bradley S. Frank , Xi Kang

We investigate how dust foreground complexity can affect measurements of the tensor-to-scalar ratio, $r$, in the context of the Simons Observatory, using a cross-spectrum component separation analysis. Employing a suite of simulations with…

To investigate the possible effects of a light hidden sector on Higgs boson detection, we discuss a model of scalar singlets coupled to the Standard Model. The model effectively makes the Higgs width a free parameter due to additional…

High Energy Physics - Phenomenology · Physics 2011-09-29 T. Binoth , J. J. van der Bij

The Randall-Sundrum model with all Standard Model (SM) fields in the bulk, including the Higgs, can be probed by precision measurements at the ILC. In particular, the couplings of the Higgs to the gauge bosons of the SM can be determined…

High Energy Physics - Phenomenology · Physics 2007-05-23 H. Davoudiasl , B. Lillie , T. G. Rizzo

With the emergence of advanced Silicon (Si) sensor technologies such as LGADs, it is now possible to achieve exceptional time measurement precision below 50 ps. As a result, the implementation of time-of-flight (TOF) particle identification…

High Energy Physics - Experiment · Physics 2023-11-09 Bohdan Dudar , Ulrich Einhaus , Jenny List , Konrad Helms , Frank Gaede

In this talk, we will review Inert Triplet Model (ITM) which provide candidate for dark matter (DM) particles. Then we study possible decays of Higgs boson to DM candidate and apply current experimental data for invisible Higgs decay to…

High Energy Physics - Phenomenology · Physics 2015-06-03 Seyed Yaser Ayazi , S. Mahdi Firouzabadi

Motivated by the recent measurement of muon anomalous magnetic moment at Fermilab, the rapid progress of the LHC search for supersymmetry, and the significantly improved sensitivities of dark matter direct detection experiments, we studied…

High Energy Physics - Phenomenology · Physics 2023-11-13 Yangle He , Lei Meng , Yuanfang Yue , Di Zhang

We estimate the bounds on Higgs and sparticle masses and discuss their correlations in the constrained minimal supersymmetric standard model (CMSSM). In our analysis we have applied the present constraints from collider and low energy…

High Energy Physics - Phenomenology · Physics 2011-11-10 Alexander Belyaev , Shahida Dar , Ilia Gogoladze , Azar Mustafayev , Qaisar Shafi

Two major problems call for an extension of the Standard Model (SM): the hierarchy problem in the Higgs sector and the dark matter in the Universe. The discovery of a Higgs boson with mass of about 125 GeV was clearly the most significant…

High Energy Physics - Phenomenology · Physics 2016-09-22 Beranger Dumont

We study the binary discrimination problem of identification of boosted $H\to gg$ decays from massive QCD jets in a systematic expansion in the strong coupling. Though this decay mode of the Higgs is unlikely to be discovered at the LHC, we…

High Energy Physics - Phenomenology · Physics 2025-04-23 Andrew J. Larkoski

We investigate the possibility of measuring the Hubble constant, the fractional energy density components and the equation of state parameter of the ``dark energy'' using lensed multiple images of high-redshift supernovae. With future…

Astrophysics · Physics 2009-11-07 A. Goobar , E. Mortsell , R. Amanullah , P. Nugent

The upper bond on the branching ratio for $b\to s\gamma$ decays implies a stringent lower bound on the mass of the pseudoscalar Higgs boson of the MSSM if sparticles are heavy. This leads to an upper bound on the expected event rate in…

High Energy Physics - Phenomenology · Physics 2016-09-01 M. Drees

The effect of the photon emission (bremsstrahlung) in the cross section of the process of direct production of the Higgs boson in the future high luminosity electron and muon colliders is calculated. It was found that cross section at the…

High Energy Physics - Phenomenology · Physics 2016-02-10 S. Jadach , R. A. Kycia

We study possible observational effects of scalar dark matter, the darkon D, in Higgs h and top quark t decay processes, h->DD and t->cDD in the minimal Standard Model (SM) and its two Higgs doublet model (THDM) extension supplemented with…

High Energy Physics - Phenomenology · Physics 2008-11-26 Xiao-Gang He , Tong Li , Xue-Qian Li , Ho-Chin Tsai

Effective Field Theories offer a consistent bottom-up approach to parametrise small deviations from Standard Model predictions. In this work we report on the application of the Effective Field Theory to shed light on effects from high-scale…

High Energy Physics - Phenomenology · Physics 2015-11-26 Massimiliano Grazzini , Agnieszka Ilnicka , Michael Spira , Marius Wiesemann
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