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相关论文: CPsuperH2.0: an Improved Computational Tool for Hi…

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We analyze the prospect for observing the intermediate neutral Higgs boson ($h_2$) in its decay to two lighter Higgs bosons ($h_1$) at the presently operating hadron colliders in the framework of the CP violating MSSM using the PYTHIA event…

高能物理 - 唯象学 · 物理学 2011-02-18 Siba Prasad Das , Manuel Drees

We consider the effective two-Higgs-doublet potential with complex parameters, when the CP invariance is broken both explicitly and spontaneously. Diagonal mass term in the local minimum of the potential is constructed for the physical…

高能物理 - 唯象学 · 物理学 2011-07-19 E. Akhmetzyanova , M. Dolgopolov , M. Dubinin

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.…

高能物理 - 唯象学 · 物理学 2023-08-08 Thomas Kwasnitza , Dominik Stöckinger , Alexander Voigt

We revisit an extension of the MSSM by adding a hypercharge-neutral, SU(2)-triplet chiral superfield. Similar to the NMSSM, the triplet gives an additional contribution to the quartic coupling in the Higgs potential, and the mass of the…

高能物理 - 唯象学 · 物理学 2008-11-26 Stefano Di Chiara , Ken Hsieh

We consider the prospects for measuring distinctive signatures of the CP-violating phases in the minimal supersymmetric extension of the Standard Model (MSSM) in light of the limits on sparticle masses from searches at the LHC. We use the…

高能物理 - 唯象学 · 物理学 2020-07-07 A. Arbey , J. Ellis , F. Mahmoudi

FeynHiggs is a Fortran code for the calculation of the masses of the neutral CP-even Higgs bosons in the MSSM up to two-loop order. It is based on the complete diagrammatic on-shell results at the one-loop level, the leading diagrammatic…

高能物理 - 唯象学 · 物理学 2008-11-26 S. Heinemeyer , W. Hollik , G. Weiglein

Recent results for the leading $\mathcal{O}{\left(\alpha_t^2\right)}$ two-loop corrections to the Higgs-boson masses of the MSSM with complex parameters are presented. The strategy of the Feynman-diagrammatic, analytical calculation is…

高能物理 - 唯象学 · 物理学 2015-04-16 Wolfgang Hollik , Sebastian Paßehr

The study of the Higgs boson's properties is a cornerstone of the LHC and future collider programs. In this paper, we examine the potential to directly probe the Higgs-top interaction strength and CP-structure in the $t\bar t h$ channel…

高能物理 - 唯象学 · 物理学 2022-02-16 Dorival Gonçalves , Jeong Han Kim , Kyoungchul Kong , Yongcheng Wu

We present detailed results of a diagrammatic calculation of the leading two-loop QCD corrections to the masses of the neutral CP-even Higgs bosons in the Minimal Supersymmetric Standard Model (MSSM). The two-loop corrections are…

高能物理 - 唯象学 · 物理学 2011-05-05 S. Heinemeyer , W. Hollik , G. Weiglein

The complex two-Higgs doublet model (C2HDM) is one of the simplest extensions of the Standard Model with a source of CP-violation in the scalar sector. It has a $\mathbb{Z}_2$ symmetry, softly broken by a complex coefficient. There are four…

高能物理 - 唯象学 · 物理学 2024-07-16 Thomas Biekötter , Duarte Fontes , Margarete Mühlleitner , Jorge C. Romão , Rui Santos , João P. Silva

Measuring the CP symmetry in the Higgs sector is one of the key tasks of the LHC and a crucial ingredient for precision studies, for example in the language of effective Lagrangians. We systematically analyze which LHC signatures offer…

高能物理 - 唯象学 · 物理学 2018-05-23 Johann Brehmer , Felix Kling , Tilman Plehn , Tim M. P. Tait

We study the Higgs-boson mass spectrum of the minimal supersymmetric standard model, in which the tree-level CP invariance of the Higgs potential is broken explicitly by loop effects of soft-CP-violating Yukawa interactions related to…

高能物理 - 唯象学 · 物理学 2009-10-07 Apostolos Pilaftsis , Carlos E. M. Wagner

The differential branching ratio, forward-backward asymmetry, CP asymmetry and lepton polarization for a B-meson to decay to strange hadronic final states and a $\tau^+\tau^-$ pair in a CP softly broken two Higgs doublet model are computed.…

高能物理 - 唯象学 · 物理学 2014-11-17 Chao-Shang Huang , Shou Hua Zhu

We explore the prospects for observing CP violation in the minimal supersymmetric extension of the Standard Model (MSSM) with six CP-violating parameters, three gaugino mass phases and three phases in trilinear soft supersymmetry-breaking…

高能物理 - 唯象学 · 物理学 2015-03-03 A. Arbey , J. Ellis , R. M. Godbole , F. Mahmoudi

The ATLAS and CMS collaborations have observed independently at the Large Hadron Collider (LHC) a new Higgs-like particle with a mass $M_h \sim$ 125 GeV and properties similar to that predicted by the Standard Model (SM). Although the…

高能物理 - 唯象学 · 物理学 2014-09-10 Amit Chakraborty , Biswaranjan Das , J. Lorenzo Diaz-Cruz , Dilip Kumar Ghosh , Stefano Moretti , P. Poulose

We present the C++ code BSMPT v2 which is an extension of the previous code BSMPT for the calculation of the strength of the electroweak phase transition in extended Higgs sectors. The new version BSMPT v2 includes the features of BSMPT and…

高能物理 - 唯象学 · 物理学 2021-08-20 P. Basler , M. Muhlleitner , J. Müller

We study the production and decay of a coupled system of mixed neutral MSSM Higgs bosons in exclusive double-diffractive processes at the LHC, including non-vanishing CP phases in the soft supersymmetry-breaking gaugino masses and…

高能物理 - 唯象学 · 物理学 2008-11-26 John Ellis , Jae Sik Lee , Apostolos Pilaftsis

We describe a numerical calculation tool H-COUP written in Fortran, which provides one-loop electroweak corrected vertices for the discovered Higgs boson $h(125)$ in various Higgs sectors. The renormalization is based on the improved…

高能物理 - 唯象学 · 物理学 2018-09-26 Shinya Kanemura , Mariko Kikuchi , Kodai Sakurai , Kei Yagyu

In the MSSM, the CP parities of the neutral Higgs bosons may be mixed by radiative effects induced by explicit CP violation in the third generation of squarks. To allow for this possibility, we argue that the charged Higgs-boson mass and…

高能物理 - 唯象学 · 物理学 2008-11-26 M. Carena , J. Ellis , A. Pilaftsis , C. E. M. Wagner

This proceedings presents a concise overview of the Higgs boson's charge-conjugation and parity (CP) properties and constraints on Effective Field Theory (EFT) operators, derived from the ATLAS experiment at the Large Hadron Collider (LHC).…

高能物理 - 实验 · 物理学 2025-12-16 Haijun Yang