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We present an improved calculation of the light CP-even Higgs boson pole mass in the MSSM based on the FlexibleEFTHiggs hybrid method. The calculation resums large logarithms to all orders and includes power-suppressed terms at fixed order.…

High Energy Physics - Phenomenology · Physics 2023-08-08 Thomas Kwasnitza , Dominik Stöckinger , Alexander Voigt

We calculate a full set of one-loop corrections to the Higgs boson coupling constants as well as the electroweak parameters. We compute the decay rate of the standard model (SM)-like Higgs boson ($h$) into diphoton. Renormalized Higgs…

High Energy Physics - Phenomenology · Physics 2015-06-12 Mayumi Aoki , Shinya Kanemura , Mariko Kikuchi , Kei Yagyu

We present a detailed analysis of multiple production of the lightest CP-even Higgs boson (h) of the Minimal Supersymmetric Standard Model (MSSM) at high-energy e^+ e^- colliders. We consider the production of the heavier CP-even Higgs…

High Energy Physics - Phenomenology · Physics 2009-10-31 P. Osland , P. N. Pandita

We present complete analytical expressions for the amplitudes of the process $e\bar{e}\rightarrow H\gamma$. The calculation is performed using nonlinear gauges, which significantly simplifies both the actual analytical calculation and the…

High Energy Physics - Phenomenology · Physics 2009-10-28 Ali Abbasabadi , David Bowser-Chao , Duane A. Dicus , Wayne W. Repko

To ascertain the new boson with mass near 125 {GeV} observed recently by ATLAS and CMS Collaborations to be the Standard Model Higgs, and to determine its intrinsic properties, more measurements on its various decay channels are still…

High Energy Physics - Phenomenology · Physics 2015-06-12 Long-Bin Chen , Cong-Feng Qiao , Rui-Lin Zhu

Motivated by the future precision test of the Higgs boson at an $e^+e^-$ Higgs factory, we calculate the production $e^+e^- \to ZH\gamma$ in the Standard Model with complete next-to-leading order electroweak corrections. We find that for…

High Energy Physics - Phenomenology · Physics 2015-06-18 Ning Liu , Jie Ren , Lei Wu , Peiwen Wu , Jin Min Yang

We present a detailed analysis of the rare exclusive Higgs-boson decays into a single vector meson and a photon and investigate the possibility of using these processes to probe the light-quark Yukawa couplings. We work with an effective…

High Energy Physics - Phenomenology · Physics 2016-03-30 Matthias Koenig , Matthias Neubert

We investigate the neutron to proton decay via a Higgs mechanism in the framework of a reinterpreted Kogut-Susskind Hamiltonian on the Lie group u(3). We calculate expressions for a scalar Higgs mass, an electroweak energy scale, and vector…

High Energy Physics - Phenomenology · Physics 2014-05-02 Ole L. Trinhammer

The search for double Higgs production in $b\bar{b}W^+W^-$, where both $W$ bosons decay to leptons, has been rehabilitated as a good option to look for that key process to the Standard Model scalar sector study in the LHC. The missing…

High Energy Physics - Phenomenology · Physics 2024-02-19 Alexandre Alves , Eduardo da Silva Almeida , Igor Neiva Mesquita

A study of two-Higgs-doublet models (2HDM) in the decoupling limit reveals the existence of parameter configurations with a large triple-Higgs self-coupling as the only low-energy trace of the departure from a Standard Model (SM) Higgs…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Moretti , S. Moretti , F. Piccinini , R. Pittau , A. D. Polosa

Searches for the intermediate boson, $W^{\pm}$, the heavy quantum of the Weak Interaction, via its semi-leptonic decay, $W\to e +\nu$, in the 1970's instead discovered unexpectedly large hadron production at high $p_T$, notably $\pi^0$,…

Nuclear Experiment · Physics 2010-09-06 M. J. Tannenbaum

This study investigates the potential of the TESLA Linear Collider for measuring resonance parameters of Higgs bosons beyond the mass range studied so far. The analysis is based on the reconstruction of events from the Higgsstrahlung…

High Energy Physics - Phenomenology · Physics 2007-05-23 Niels Meyer

The discovery of the Higgs particle at 125 GeV is demanding a detailed knowledge of the properties of this fundamental component of the Standard Model. To that aim various proposals of electron and muon colliders have been put forward for…

High Energy Physics - Phenomenology · Physics 2016-01-20 Mario Greco

The search for new physics signals in Higgs precision measurements plays a pivotal role in the High-Luminosity Large Hadron Collider (HL-LHC) and future colliders programs. The Higgs properties are expected to be measured with great…

High Energy Physics - Phenomenology · Physics 2023-09-22 E. A. Reyes R. , A. R. Fazio

Observing the production of the Higgs particle in the $\gamma$-$\gamma$ mode of a linear $e^+e^-$ collider allows for the measurement of the $H\gamma\gamma$ coupling. We point out that for the intermediate Higgs mass range this measurement…

High Energy Physics - Phenomenology · Physics 2009-10-22 O. J. P. Eboli , M. C. Gonzalez-Garcia , F. Halzen , D. Zeppenfeld

Precise measurement of the Higgs boson properties is an important issue of the International Linear Collider (ILC) experiment. We studied the accuracy of the Higgs mass reconstruction in the ZH->qqH multi-jet process with the Higgs mass of…

High Energy Physics - Experiment · Physics 2009-07-15 Hiroaki Ono

Weinberg sum-rules have been used in the past to successfully predict the electromagnetic contribution to the charged-pion mass as a function of the meson masses. Following the same approach we calculate in the minimal composite Higgs model…

High Energy Physics - Phenomenology · Physics 2015-06-05 Alex Pomarol , Francesco Riva

We study central Z-boson production accompanied by rapidity gaps on either side as a way to gauge Higgs weak boson fusion production at the LHC. We analyse the possible backgrounds for the bb-decay mode and show that these can be…

High Energy Physics - Phenomenology · Physics 2014-11-17 V. A. Khoze , M. G. Ryskin , W. J. Stirling , P. H. Williams

In this paper, we study an extension of the standard model with a vector-like generation of leptons. This model provides a viable dark matter candidate and a possibility to enhance the Higgs decay rate into a pair of photons. We evaluate…

High Energy Physics - Phenomenology · Physics 2015-03-20 Aniket Joglekar , Pedro Schwaller , Carlos E. M. Wagner

We investigate the resummation effects in the Standard Model Higgs boson pair production through gluon-gluon fusion at the LHC with soft-collinear effective theory. We calculate the total cross section and the invariant mass distribution at…

High Energy Physics - Phenomenology · Physics 2013-08-01 Ding Yu Shao , Chong Sheng Li , Hai Tao Li , Jian Wang