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A search for a heavy Standard Model Higgs boson decaying via H->ZZ->llqq, where l=e,mu, is presented. The search is performed using a data set of pp collisions at sqrt(s)=7 TeV, corresponding to an integrated luminosity of 1.04 fb^-1…

高能物理 - 实验 · 物理学 2012-08-27 The ATLAS Collaboration

This review starts with a brief introduction to the charged Higgs boson $(H^\pm)$ in the Minimal Supersymmetric Standard Model (MSSM). It then discusses the prospects of a relatively light $H^\pm$ boson search via top quark decay and…

高能物理 - 唯象学 · 物理学 2007-05-23 D. P. Roy

Production of the leptophilic Z' boson at future colliders was proposed as one of the benchmark Beyond the Standard Model (BSM) scenarios for the Physics Briefing Book prepared for the 2026 update of the European Strategy for Particle…

高能物理 - 实验 · 物理学 2026-03-19 Aleksander Filip Żarnecki

A search for invisible decays of Higgs bosons is performed using the vector boson fusion and associated ZH production modes. In the ZH mode, the Z boson is required to decay to a pair of charged leptons or a b b-bar quark pair. The searches…

高能物理 - 实验 · 物理学 2014-08-21 CMS Collaboration

In this paper, we discuss the possibility to probe a nearly-degenerate $Z^{\prime}$-$Z$ system by analyzing the $Z$-lineshape at an electron-positron collider. Compared with the usual $Z^{\prime}$ in the literature well separated with the…

高能物理 - 唯象学 · 物理学 2024-05-22 Dayun Qiu , Yi-Lei Tang

The aim of this work is to search for a new heavy Higgs boson in the B-L extension of the Standard Model at LHC using the data produced from simulated collisions between two protons at different center of mass energies by Monte Carlo event…

核理论 · 物理学 2013-10-22 Hesham Mansour , Nady Bakhet

We introduce a set of minimal simplified models for dark matter interactions with the Standard Model, connecting the two sectors via either a scalar or pseudoscalar particle. These models have a wider regime of validity for dark matter…

高能物理 - 唯象学 · 物理学 2015-06-23 Matthew R. Buckley , David Feld , Dorival Goncalves

Many models containing particles which are candidates for dark matter, assume the standard model particles and the dark matter candidates are mediated by a spin-0 particle. At the LHC, one can use these models for dark matter searches. One…

高能物理 - 实验 · 物理学 2019-03-20 Yoav Afik , Eitan Gozani , Yoram Rozen

A prospective analysis for the search of the Standard Model Higgs boson decaying in vector boson pairs is presented with the CMS experiment in the context of the initial luminosity at the CERN LHC pp collider. Monte Carlo data corresponding…

高能物理 - 实验 · 物理学 2019-08-13 C. Charlot

Searches for dark matter produced via scalar resonances in final states consisting of Standard Model (SM) particles and missing transverse momentum are of high relevance at the LHC. Motivated by dark-matter portal models, most existing…

We systematically study the possibility of determining the spin of new particles after their discovery at the LHC. We concentrate on angular correlations in cascade decays. Motivated by constraints of electroweak precision tests and the…

高能物理 - 唯象学 · 物理学 2010-10-27 Lian-Tao Wang , Itay Yavin

We study the collider phenomenology of the $B$-$L$ extension of the Standard Model (BLSM), focusing on the production and decay of a heavy neutral gauge boson (\( Z' \)) at the Large Hadron Collider (LHC). In this framework, the \( Z' \)…

高能物理 - 唯象学 · 物理学 2025-08-13 Nidal Chamoun , Kareem Ezzat , Shaaban Khalil , Rhitaja Sengupta

Associated production of a baryonic Z' boson with the W boson can account for the excess in Wjj production observed by the CDF collaboration at the Tevatron. We analyze other possible channels of this Z' at the Tevatron and at the LHC,…

高能物理 - 唯象学 · 物理学 2011-12-23 Kingman Cheung , Jeonghyeon Song

Searching for heavy vector bosons $Z^\prime$, predicted in models inspired by Grand Unification Theories, is among the challenging objectives of the LHC. The ATLAS and CMS collaborations have looked for $Z^\prime$ bosons assuming that they…

高能物理 - 唯象学 · 物理学 2018-02-22 Jack Y. Araz , Gennaro Corcella , Mariana Frank , Benjamin Fuks

The discovery of the Standard Model Scalar Boson (Brout-Englert-Higgs particle) opens a new field of research, namely the structure of the scalar sector. Numerous extensions exist, and imply extra particles, including additional scalars.…

高能物理 - 唯象学 · 物理学 2014-01-31 Cécile Caillol , Barbara Clerbaux , Jean-Marie Frère , Simon Mollet

Light dark matter with mass smaller than about 10 GeV is difficult to probe from direct detection experiments. In order to have the correct thermal relic abundance, the mediator of the interaction between dark matter and the Standard Model…

高能物理 - 唯象学 · 物理学 2015-03-20 Haipeng An , Ran Huo , Lian-Tao Wang

In the littlest Higgs model with T-parity, the production cross section of the T-odd heavy gauge boson pair $Z_H W_H$ is quite sizable at the LHC. In addition, both the $W_H$ and $Z_H$ bosons have almost exclusively one decay channel into…

高能物理 - 唯象学 · 物理学 2013-05-08 Kingman Cheung , Kang Young Lee , So Young Shim , Jeonghyeon Song , Namseok Yoo

New heavy vector bosons and light scalars are predicted in a plethora of models of new physics. In particular, in new strongly interacting sectors they play the role of the $\rho$ and $\pi$ mesons in QCD. We show that some of their…

高能物理 - 唯象学 · 物理学 2019-06-26 Mikael Chala , Ulrik Egede , Michael Spannowsky

This report, summarising work achieved in the context of the LHC Dark Matter Working Group, investigates the phenomenology of $t$-channel dark matter models, spanning minimal setups with a single dark matter candidate and mediator to more…

For any new physics possibly emerging in the future B experiments, the problem is how to extract the signals from the SM background. We consider the decay $b\to s s\bar d$ which is very small in the SM. In the MSSM this decay is possibly…

高能物理 - 唯象学 · 物理学 2009-10-31 Katri Huitu , Cai-Dian Lü , Paul Singer , Da-Xin Zhang