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A search for a Higgs boson in the four-lepton decay channel H to ZZ, with each Z boson decaying to an electron or muon pair, is reported. The search covers Higgs boson mass hypotheses in the range 110 < mH < 600 GeV. The analysis uses data…

High Energy Physics - Experiment · Physics 2012-08-27 CMS Collaboration

The doubly charged Higgs bosons $H^{\pm\pm}$ searches at the Large Hadron Collider (LHC) have been studied extensively and strong bound is available for $H^{\pm\pm}$ dominantly decaying into a pair of same-sign di-leptons. In this paper we…

High Energy Physics - Phenomenology · Physics 2016-01-27 Zhaofeng Kang , Jinmian Li , Tianjun Li , Yandong Liu , Guo-Zhu Ning

Searches are presented for heavy scalar (H) and pseudoscalar (A) Higgs bosons posited in the two doublet model (2HDM) extensions of the standard model (SM). These searches are based on a data sample of pp collisions collected with the CMS…

High Energy Physics - Experiment · Physics 2014-12-31 CMS Collaboration

A search is presented for the decay of the 125 GeV Higgs boson (H) to a pair of new light pseudoscalar bosons (a), followed by the prompt decay of each a boson to a bottom quark-antiquark pair, H $\to$ aa $\to$ $\mathrm{b\bar{b}b\bar{b}}$.…

High Energy Physics - Experiment · Physics 2024-06-21 CMS Collaboration

We present a search for a Higgs boson decaying into a pair of photons based on 9.6 fb-1 of p-pbar collisions at sqrt(s)=1.96 TeV collected with the D0 detector at the Fermilab Tevatron Collider. The search employs multivariate techniques to…

High Energy Physics - Experiment · Physics 2013-09-25 D0 Collaboration

We analyse a light charged Higgs boson in the 2-Higgs Doublet Model (2HDM) Type-I, when its mass satisfies the condition $M_{H^{\pm}} < M_{t}+M_{b}$ and the parameter space is consistent with theoretical requirements of self-consistency as…

High Energy Physics - Phenomenology · Physics 2021-12-22 Yan Wang , A. Arhrib , R. Benbrik , M. Krab , B. Manaut , S. Moretti , Qi-Shu Yan

Search for the Higgs Boson is one of the prime goals of the LHC. Higgs bosons lighter than 130 GeV decay mainly to a b-quark pair. While the detection of a directly produced Higgs boson in the bb channel is impossible because of the huge…

High Energy Physics - Phenomenology · Physics 2007-05-23 V. Drollinger , T. Muller , D. Denegri

We propose a novel model-independent method to search for W' bosons at the Large Hadron Collider by looking at dijets where one jet is identified as a boosted-top jet and another jet is tagged as a boosted-bottom jet. Performing a detector…

High Energy Physics - Phenomenology · Physics 2014-07-30 Daniel Duffty , Zack Sullivan

A search is presented for massive narrow resonances decaying either into two Higgs bosons, or into a Higgs boson and a W or Z boson. The decay channels considered are HH $\to \mathrm{b\overline{b}}\tau^{+}\tau^{-}$ and VH $\to…

High Energy Physics - Experiment · Physics 2019-01-23 CMS Collaboration

Investigating the polarization of weak bosons provides an important probe of the scalar and gauge sector of the Standard Model. This can be done in the Higgs decay to four leptons, whose Standard-Model leading-order amplitude enables to…

High Energy Physics - Phenomenology · Physics 2022-01-17 Ezio Maina , Giovanni Pelliccioli

A search is presented for a light charged Higgs boson H$^\pm$ in top quark pair production ($\mathrm{t\bar{t}}$), where one of the top quarks decays to an H$^\pm$ and a bottom quark, while the other decays to a W$^\mp$ boson and a bottom…

High Energy Physics - Experiment · Physics 2026-05-04 CMS Collaboration

Results are presented from searches for the standard model Higgs boson in proton-proton collisions at sqrt(s) = 7 and 8 TeV in the Compact Muon Solenoid experiment at the LHC, using data samples corresponding to integrated luminosities of…

High Energy Physics - Experiment · Physics 2013-01-29 The CMS Collaboration

We study the exotic decay of the 125 GeV Higgs boson ($h$) into a pair of light spin-0 particles ($\phi$) which subsequently decays and results in a $4b$ final state. This decay mode is well motivated in the Next to Minimal Supersymmetric…

High Energy Physics - Phenomenology · Physics 2017-07-21 Shang Liu , Yi-Lei Tang , Chen Zhang , Shou-hua Zhu

The final state obtained when a Higgs boson decays to a photon and a Z boson has been mostly overlooked in current searches for a light Higgs boson. However, when the Z boson decays leptonically, all final state particles in this channel…

High Energy Physics - Phenomenology · Physics 2015-03-19 James S. Gainer , Wai-Yee Keung , Ian Low , Pedro Schwaller

Many models of physics beyond the Standard Model yield exotic Higgs decays. Some of these, particularly those in which the Higgs decays to light quarks or gluons, can be very difficult to discover experimentally. Here we introduce a new set…

High Energy Physics - Phenomenology · Physics 2013-05-29 Adam Falkowski , David Krohn , Jessie Shelton , Arun Thalapillil , Lian-Tao Wang

Strongly coupled models at the TeV scale often predict one or more neutral spin-one resonances (Z') which have appreciable branching fractions to electroweak bosons, namely the Higgs and longitudinal W and Z. These resonances are usually…

High Energy Physics - Phenomenology · Physics 2011-03-10 Andrey Katz , Minho Son , Brock Tweedie

Direct and indirect searches of the Higgs boson suggest that 113 GeV $\lesssim m_H \lesssim$ 170 GeV is likely. With the LEP era over and the Tevatron Run II search via $p\bar p \to WH+X$ arduous, we revisit a case where $WH$ or $ZH +$ jets…

High Energy Physics - Phenomenology · Physics 2011-03-23 Abdesslam Arhrib , Wei-Shu Hou

New light scalar particles in the mass range of hundreds of GeV, decaying into a pair of $W/Z$ bosons can appear in several extensions of the SM. The focus of collider studies for such a scalar is often on its direct production, where the…

High Energy Physics - Phenomenology · Physics 2018-12-05 Kaustubh Agashe , Jack H. Collins , Peizhi Du , Sungwoo Hong , Doojin Kim , Rashmish K. Mishra

A Higgs boson lighter than 2 m_W that decays mostly into invisible channels (e.g., dark matter particles) is theoretically well-motivated. We study the prospects for discovery of such an invisible Higgs, h_inv, at the LHC and the Tevatron…

High Energy Physics - Phenomenology · Physics 2008-11-26 Hooman Davoudiasl , Tao Han , Heather E. Logan

LHC searches for the standard model Higgs Boson in \gamma\gamma\ or \tau\tau\ decay modes place strong constraints on the light technipion state predicted in technicolor models that include colored technifermions. Compared with the standard…

High Energy Physics - Phenomenology · Physics 2012-02-08 R. Sekhar Chivukula , Pawin Ittisamai , Jing Ren , Elizabeth H. Simmons