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A search for the standard model Higgs boson is performed in a data sample corresponding to an integrated luminosity of 1.1 fb$^{-1}$, recorded by the CMS detector in proton-proton collisions at the LHC with a 7 TeV center-of-mass energy.…

高能物理 - 实验 · 物理学 2015-06-03 Michele De Gruttola

This thesis concerns the observation of a new particle and the measurements of its properties, from the search of the Higgs boson through its decay into two photons at the CMS experiment at CERN's Large Hadron Collider (LHC), on the full…

高能物理 - 实验 · 物理学 2015-06-24 Mingming Yang

Searches for the exclusive decays of the Higgs boson to an $\omega$ meson and a photon or a $K^{*}$ meson and a photon can probe flavour-conserving and flavour-violating Higgs boson couplings to light quarks, respectively. Searches for…

高能物理 - 实验 · 物理学 2023-11-16 ATLAS Collaboration

Supersymmetric models with an additional singlet field offer the Higgs boson the possibility to decay to two pseudoscalars, a. If the mass of these pseudoscalars is above the b bbar threshold, a -> b bbar is generically the dominant decay…

高能物理 - 唯象学 · 物理学 2008-11-26 Tim Stelzer , Soren Wiesenfeldt , Scott Willenbrock

Three rare decay processes of the Higgs boson to a $\rho$(770)$^0$, $\phi$(1020), or K$^{*}$(892)$^0$ meson and a photon are searched for using $\sqrt{s}$ = 13 TeV proton-proton collision data collected by the CMS experiment at the LHC.…

高能物理 - 实验 · 物理学 2025-02-13 CMS Collaboration

We investigate the possibility to distinguish between the Standard Model Higgs boson and the lightest Higgs boson in Split Supersymmetry. We point out that the best way to distinguish between these two Higgs bosons is through the decay into…

高能物理 - 唯象学 · 物理学 2008-11-26 Marco Aurelio Diaz , Pavel Fileviez Perez

A search is presented for the Higgs boson decay to a pair of electrons (e$^+$e$^-$) in proton-proton collisions at $\sqrt{s}$ = 13 TeV. The data set was collected with the CMS experiment at the LHC between 2016 and 2018, corresponding to an…

高能物理 - 实验 · 物理学 2023-10-04 CMS Collaboration

The decay of a light Higgs boson to bottom quarks is dominant and can be exploited for the discovery of the Higgs particle and the measurement of its properties at the LHC and future collider experiments. We perform a first computation of…

高能物理 - 唯象学 · 物理学 2015-05-30 Charalampos Anastasiou , Franz Herzog , Achilleas Lazopoulos

Two--photon decays of Higgs bosons are important channels for the search of these particles in the intermediate mass range at the $pp$ colliders LHC and SSC. Dynamical aspects of the Higgs coupling to two photons can also be studied by…

高能物理 - 唯象学 · 物理学 2011-07-19 A. Djouadi , M. Spira , P. M. Zerwas

In this paper, we investigate the decay of Higgs boson to $h_c$ plus a photon in the NRQCD theoretical framework. Comparing with the Higgs decay to $J/\psi$ plus a photon channel, this process has not indirect contribution, can be used to…

高能物理 - 唯象学 · 物理学 2020-01-08 Song Mao , Yang Guo-He , Li Gang , Zhang Yu , Guo Jian-You

One of the primary goals of the Large Hadron Collider is to understand the electroweak symmetry breaking mechanism. In the Standard Model, electroweak symmetry breaking is described by the Higgs mechanism which includes a scalar Higgs…

高能物理 - 唯象学 · 物理学 2010-11-11 D. M. Asner , M. Cunningham , S. Dejong , K. Randrianarivony , C. Santamarina , M. Schram

The dominance of $h\to \eta \eta$ decay mode for the intermediate mass Higgs boson is highly motivated to solve the little hierarchy problem and to ease the tension with the precision data. However, the discovery modes for $m_h \alt 150$…

高能物理 - 唯象学 · 物理学 2007-10-11 Kingman Cheung , Jeonghyeon Song , Qi-Shu Yan

We investigate the LHC discovery prospects for a heavy Higgs boson decaying into the Standard Model Higgs boson and additional weak bosons. We consider a generic model-independent new physics configuration where this decay proceeds via a…

高能物理 - 唯象学 · 物理学 2018-04-11 Baradhwaj Coleppa , Benjamin Fuks , P. Poulose , Shibananda Sahoo

A successful connection between Higgs boson decays and the Maximum Entropy Principle is presented. Based on the information theory inference approach we determine the Higgs boson mass as $M_H= 125.04\pm 0.25$ GeV, a value fully compatible…

高能物理 - 唯象学 · 物理学 2014-11-19 Alexandre Alves , Alex G. Dias , Roberto da Silva

The observation of the standard model (SM) Higgs boson decay to a pair of bottom quarks is presented. The main contribution to this result is from processes in which Higgs bosons are produced in association with a W or Z boson (VH), and are…

高能物理 - 实验 · 物理学 2018-09-26 CMS Collaboration

A search is presented for decays of Z and Higgs bosons to a J$/\psi$ meson and a photon, with the subsequent decay of the J$/\psi$ to $\mu^+\mu^-$. The analysis uses data from proton-proton collisions with an integrated luminosity of 35.9…

高能物理 - 实验 · 物理学 2019-02-04 CMS Collaboration

Various Higgs factories are proposed to study the Higgs boson precisely and systematically in a model-independent way. In this study, the Particle Flow Network and ParticleNet techniques are used to classify the Higgs decays into…

高能物理 - 实验 · 物理学 2022-11-23 Gang LI , Libo Liao , Xinchou Lou , Peixun Shen , Weimin Song , Shudong Wang , Zhaoling Zhang

We review recent progress in techniques for searching for the Standard Model light `Intermediate Mass' Higgs Boson ($80 \GeV \lsim M_H \lsim 140\GeV$). We pay particular attention to associated production at the SSC and LHC where we search…

高能物理 - 唯象学 · 物理学 2007-05-23 David J. Summers

In the type-I two-Higgs-doublet model, existing theoretical and experimental constraints still permit the light charged Higgs boson with a mass below the top quark mass. We present a complete roadmap for the light charged Higgs boson at the…

高能物理 - 唯象学 · 物理学 2022-06-08 Kingman Cheung , Adil Jueid , Jinheung Kim , Soojin Lee , Chih-Ting Lu , Jeonghyeon Song

Measurements of the production of the standard model Higgs boson decaying to a W boson pair are reported. The W$^+$W$^-$ candidates are selected in events with an oppositely charged lepton pair, large missing transverse momentum, and…

高能物理 - 实验 · 物理学 2019-03-05 CMS Collaboration