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Leptonic decays of the Higgs boson in the ZZ* channel yield what is known as the golden channel due to its clean signature and good total invariant mass resolution. In addition, the full kinematic distribution of the decay products can be…

高能物理 - 唯象学 · 物理学 2015-05-30 James S. Gainer , Kunal Kumar , Ian Low , Roberto Vega-Morales

The search for the Higgs boson is entering a decisive phase. The Large Hadron Collider experiments have collected more than 1 fb$^{-1}$ of data and are now capable of efficiently probing the high Higgs mass region, $m_H > 140$ GeV. The low…

高能物理 - 唯象学 · 物理学 2013-05-29 Marcela Carena , Patrick Draper , Tao Liu , Carlos Wagner

This paper describes an innovative way to optimize a multivariate classifier, in particular a Support Vector Machine algorithm, on a problem characterized by a biased training sample. This is possible thanks to the feedback of a…

高能物理 - 实验 · 物理学 2014-07-02 Federico Sforza , Vittorio Lippi

Techniques and strategies for discovering and measuring the properties of Higgs bosons via $s$-channel production at a $\mu^+\mu^-$ collider, and the associated requirements for the machine and detector, are discussed in detail. The unique…

高能物理 - 唯象学 · 物理学 2009-09-15 V. Barger , M. S. Berger , J. F. Gunion , T. Han

We present a search for the Standard Model Higgs boson produced in association with a W boson in $p\bar{p}$ collisions at a center-of-mass energy of $\sqrt{s} = 1.96$ TeV. The search is performed in the $WH\to \ell\nu b\bar{b}$ channel…

高能物理 - 实验 · 物理学 2009-10-20 Darren D. Price

Motivated by recent search results for the standard model (SM) Higgs boson at the Large Hadron Collider (LHC), we revisit the Higgs phenomenology in the littlest Higgs model with T-parity (LHT). We present the signal strength modifier $\mu$…

高能物理 - 唯象学 · 物理学 2015-06-15 Qing-Guo Zeng , Shuo Yang , Chong-Xing Yue , Lian-Song Chen

We present a method for identifying $H\rightarrow WW^* \rightarrow \ell \nu j j$ in the presence of large Standard Model backgrounds and illustrate how this decay mode may be applied to the study of Bell-type Inequalities. Our findings…

高能物理 - 唯象学 · 物理学 2024-04-18 Federica Fabbri , James Howarth , Theo Maurin

In the standard model (SM), pair production rate of Higgs boson at the Large Hadron Collider (LHC) is quite low. One usually think that it is extremely important for the measurement of triple Higgs coupling at the high luminosity LHC. In…

高能物理 - 唯象学 · 物理学 2013-11-05 Jia Liu , Xiao-Ping Wang , Shou-hua Zhu

The signal for a highly boosted heavy resonance competing against a background of light parton jets at the LHC can be enhanced by analyzing subjets in the "fat" jet that possibly contains the heavy resonance. Three methods for doing this…

高能物理 - 唯象学 · 物理学 2015-03-17 Davison E. Soper , Michael Spannowsky

The Compact Linear Collider (CLIC) is a concept for a future $e^{+}e^{-}$ linear collider with a center-of-mass energy of up to 3 TeV. The design of a CLIC experiment is driven by the requirements related to the physics goals, as well as by…

仪器与探测器 · 物理学 2014-02-13 Christian Grefe

The prospects of observing the non-resonant di-Higgs production in the Standard Model at the proposed high energy upgrade of the LHC, $viz.$ the HE-LHC$~$($\sqrt{s}=27~{\rm TeV}$ and $\mathcal{L} = 15~{\rm ab^{-1}}$) is studied. Various…

高能物理 - 唯象学 · 物理学 2021-01-19 Amit Adhikary , Rahool Kumar Barman , Biplob Bhattacherjee

In this study, computational analysis of neutral Higgs bosons $h$, $H$ and $A$ is carried out within the parameter space of Two Higgs Doublet Model (2HDM) type-I in exact alignment limit of $\sin{(\beta - \alpha)} = 1$ at compact linear…

高能物理 - 唯象学 · 物理学 2024-05-30 Ijaz Ahmed , Muhammad Danish Aslam , Taimoor Khurshid , Jamil Muhammad , Shamona Fawad Qazi

We use modern jet-substructure techniques to propose LHC searches for multijet-resonance signals without leptons or missing energy. We focus on three-jet resonances produced by R-parity-violating decays of boosted gluinos, showing that…

高能物理 - 唯象学 · 物理学 2013-09-30 David Curtin , Rouven Essig , Brian Shuve

We perform a search for beyond the standard model dimension-six operators relevant to the Higgs boson at the Large Hadron Electron Collider (LHeC) and the Future Circular Hadron Electron Collider (FCC-he). With a large amount of data (few…

高能物理 - 唯象学 · 物理学 2018-06-14 Hoda Hesari , Hamzeh Khanpour , Mojtaba Mohammadi Najafabadi

In the absence of a Higgs boson, the perturbative description of the Standard Model ceases to make sense above a TeV. Heavy spin-1 fields coupled to W and Z bosons can extend the validity of the theory up to higher scales. We carefully…

高能物理 - 唯象学 · 物理学 2015-05-30 Adam Falkowski , Christophe Grojean , Anna Kaminska , Stefan Pokorski , Andreas Weiler

The production of multiple Higgs bosons at the LHC and beyond is a strong test of the mechanism of electroweak symmetry breaking. Taking inspiration from recent experimental efforts to move towards limits on triple Higgs production at the…

高能物理 - 唯象学 · 物理学 2024-05-10 Anisha , Daniel Domenech , Christoph Englert , Maria J. Herrero , Roberto A. Morales

A preferred method to detect the curl-component, or B-mode, signature of inflationary gravitational waves (IGWs) in the cosmic microwave background (CMB) polarization, in the absence of foregrounds and lensing, is a prolonged integration…

天体物理仪器与方法 · 物理学 2015-08-27 Ely D. Kovetz , Marc Kamionkowski

We present the result of the searches for a low mass Standard Model Higgs boson performed at the Tevatron ppbar collider (sqrt(s) =1.96 TeV) by the CDF and D0 experiments with an integrated luminosity of up to 8.5 fb^-1. Individual searches…

高能物理 - 实验 · 物理学 2019-08-14 Federico Sforza

A standard model effective field theory (SMEFT) analysis with dimension-six operators probing nonresonant new physics effects is performed in the Higgs-strahlung process, where the Higgs boson is produced in association with a W or Z boson,…

高能物理 - 实验 · 物理学 2025-03-24 CMS Collaboration

An inclusive search for the standard model Higgs boson ($\mathrm{H}$) produced with large transverse momentum ($p_\mathrm{T}$) and decaying to a bottom quark-antiquark pair ($\mathrm{b}\overline{\mathrm{b}}$) is performed using a data set…

高能物理 - 实验 · 物理学 2018-02-21 CMS Collaboration