Standard Model Higgs Searches

Interpretation of HIGGS and SUSY searches in MSUGRA and GMSB models

HIGGS and SUSY searches performed by the ALEPH Experiment at LEP are interpreted in the framework of two constrained R-parity conserving models: Minimal Supergravity and minimal Gauge Mediated Supersymmetry Breaking.

Higgs Boson Searches at LEP

The results of the Higgs boson searches performed by the four LEP experiments at centre-of-mass energies between 189 GeV and 209 GeV corresponding to an integrated luminosity of 2461 pb$^{-1}$ are presented here. Searches have been performed for Higgs in the Standard Model (SM), in 2 Higgs Doublet Models (2HDM's), for doubly charged, fermiophobic and invisible Higgs as well as a decay mode independent search. Most of the results of the four experiments have been combined by the LEP Higgs working group.

Searches and Prospects for the Standard Model Higgs boson at the Tevatron

We summarize the status of SM Higgs boson searches at the Fermilab Tevatron performed by the CDF and DØcollaborations, with an emphasis on measurements at large Higgs mass, and derive sensitivity prospects for the upcoming increase in integrated luminosity.

Standard Model Higgs Searches and Perspectives at the Tevatron

The status and perspectives of Standard Model Higgs searches at the Tevatron experiments CDF and D0 are discussed.

Higgs searches at CMS

Results are summarized from searches for the standard model Higgs boson in pp collisions at sqrt(s) = 7 and 8 TeV in the CMS experiment at the LHC. The measurements of mass, cross section, and properties of the narrow resonance recently observed are presented. The searches beyond standard model Higgs boson, in the CMS experiment at the LHC, are highlighted.

Higgs Searches at the Tevatron

One of the highest priority physics goals for the upgraded Tevatron experiments, CDF and D0, is the search for the Higgs boson. We present the initial results from both experiments, based on 40--90 pb$^{-1}$ integrated luminosity, of Higgs searches in several final states, including $WH$ and $ZH$, $H\to WW$, and doubly-charged Higgs.

Searches for Beyond SM Higgs Boson at the Tevatron

In the following, we describe preliminary results of searches for non-SM higgs bosons at the CDF and D0 experiments. Both experiments use data obtained in pp-bar collisions at the Tevatron at sqrt(s)=1.96 TeV.

Search for exotic decays of the Higgs boson

Searches for exotic decays of the 125 GeV Higgs boson performed with data collected by the CMS experiment are presented. Three classes of searches are detailed: searches for invisible decays of the Higgs boson, searches for lepton flavor violating Higgs decays, and searches for decays to the Higgs boson to light pseudoscalars decaying to SM particle pairs. These analyses are based on data collected at center-of-mass energies of 8 and 13 TeV.

Selected topics from non-Higgs searches at LEP

Extensive searches for new phenomena have been performed at LEP. The principal aspects and results of those not related to Higgs bosons are reviewed here.

Higgs Searches at the Tevatron

This paper describes the searches for the Higgs boson performed by the CDF and D0 collaborations at the Tevatron ppbar Collider using the data collected in the 1992-95 run. Searches for standard model Higgs and as well for neutral and charged minimal SUSY Higgs bosons are also presented. No signal has been observed and limits are set for production cross sections.

Higgs Searches at CMS and ATLAS

A summary of the sensitivity of the ATLAS and CMS experiments at the LHC to discover a Standard Model Higgs boson is presented. Some prospects for Minimal Supersymmetric Standard Model Higgs searches at LHC are also included.

Beyond the Standard Model Higgs Boson Searches at the Tevatron

Results are presented for beyond the Standard Model Higgs boson searches using up to 8.2 invfb of data from Run II at the Tevatron. No significant excess is observed in any of the channels so 95% confidence level limits are presented.

Searches for Higgs Boson(s) at the Upgraded Tevatron

We summarize the status of Higgs boson searches at the upgraded Fermilab Tevatron performed by the DO and CDF collaborations. We report on three categories of searches, namely 1) the search for the Standard Model Higgs boson (p\bar{p} --> H, WH or ZH, with H --> WW* and/or H --> b\bar{b}), 2) the search for the minimal supersymmetric Higgs boson using p\bar{p} --> hb\bar{b} --> b\bar{b}b\bar{b} and p\bar{p} --> hX --> tau tau X, 3) the search for doubly charged Higgs boson.

Results of beyond the Standard Model Higgs searches from the LEP experiments

Since no Standard Model Higgs boson was discovered at LEP the searches were extended to beyond the Standard Model Higgs scenarios. A selection of final results from searches carried out by the four LEP experiments ALEPH, DELPHI, L3 and OPAL are presented that include data taken at the highest centre-of-mass energies.

Beyond the Standard Model Higgs Boson Searches at the Tevatron

Results are presented for beyond the Standard Model Higgs boson searches using up to 4.2 fb-1 of data from Run II at the Tevatron. No significant excess is observed in any of the channels so 95% confidence level limits are presented.

Searches for the Standard Model Higgs Boson with the ATLAS Detector

The most recent results for searches for the Standard Model Higgs boson at a center-of-mass energy of sqrt(s) = 7 TeV using 4.9/fb of data collected with the ATLAS detector at CERNs Large Hadron Collider are presented.

Searches for the Higgs Boson and Supersymmetry at the Tevatron

The D0 and CDF experiments at the proton-antiproton collider Tevatron have extensively searched for the Higgs boson and signals of supersymmetry using a wide range of signatures. The status of these searches is reviewed with a focus on recent measurements.

Higgs Boson Searches at the Tevatron, PIC 2012

The search for the Higgs boson, both in the context of the standard model and extensions to it, has been a key focus during Run II of the Tevatron. I report on the status of these searches, which are highlighted by evidence at the 3 standard deviation level for the SM Higgs in its $b\bar{b}$ decay mode, the strongest direct evidence to date for fermionic couplings of the Higgs boson.

Prospects for the Higgs Boson Searches with CMS

An overview on the prospects for Higgs Boson searches with the CMS detector is presented. Projections have been made to estimate the potential to a possible discovery or exclusion of the Higgs Boson during the run at a center of mass energy of 7 TeV at the LHC, with a recorded integrated luminosity of approximately 1 fb-1, conditions expected by the end of 2011

Searches for Higgs Bosons beyond the Standard Model at the Tevatron Collider

The rapidly increasing integrated luminosity collected by the CDF and D0 detectors at the Tevatron Collider has resulted in a wealth of new results from searches for Higgs bosons in the extensions of the Standard Model. Tighter limits are set on the parameters governing the Higgs sector in these models.

Searches for rare and non-Standard Model decays of the Higgs boson

Discovered in 2012, the Higgs boson has opened a new window on nature. The latest searches for its rare and non-Standard Model decays with the ATLAS detector at the LHC are presented. They represent a promising probe of the 1st and 2nd generation Yukawa couplings, and of new physics. Searches for rare exclusive decays of the Higgs boson to a meson and a photon are presented. Also presented are four searches for decays of the Higgs boson to pairs of beyond the Standard Model resonances, in various final states.

Searches for rare and exotic Higgs decays with ATLAS

Searches for rare and exotic Higgs decays using proton-proton collision data with the center-of-mass energy of 8 TeV and 13 TeV collected with the ATLAS detector are presented. Various final states are considered. No significant deviations from the Standard Model expectations are found. The results are interpreted in different Beyond Standard Model theories.

Standard Model Higgs Boson Searches at the D0 Experiment

We present the latest searches for the Standard Model Higgs boson at a centre-of-mass energy of sqrt(s) = 1.96 TeV with the D0 detector at the Fermilab Tevatron collider.

Standard Model Higgs Boson Searches at the Tevatron

The CDF and DØ experiments at the Tevatron are currently the only capable of searching for the Standard Model Higgs boson. This article describes their most sensitive searches in the expected Higgs mass range, focusing on advanced methods used to extract the maximal sensitivity from the data. CDF presents newly updated results for $H \to W^+W^-$ and $ZH \to l^+l^- b\bar{b}$. DØ\ presents two new searches for $WH \to lνb\bar{b}$. These new analyses use the same 1 fb$^{-1}$ dataset as previous searches, but with improved techniques resulting in markedly improved sensitivity.

Higgs boson searches at LEP

In this paper we report on the legacy of Higgs boson searches at LEP. Specifically, the results of the statistical combination of the searches carried out by the ALEPH, DELPHI, L3 and OPAL experiments are presented. In the search for the Standard Model (SM) Higgs boson, a signal with mh<114.4 GeV/c^2 has been excluded at the 95% confidence level (CL) or higher. The LEP collaborations also carried out extensive searches for Higgs particles predicted by many scenarios beyond the Standard Model. Here we can only report on a very small fraction of these searches and refer the reader to the complet…

Two Higgs Doublet Model and Model Independent Interpretation of Neutral Higgs Boson Searches

Searches for the neutral Higgs bosons h0 and A0, are used to obtain limits on the Type II Two Higgs Doublet Model (2HDM(II)) with no CP-violation in the Higgs sector and no additional particles besides the five Higgs bosons. The analysis combines approximately 170 pb-1 of data collected with the OPAL detector at sqrt{s} ~ 189 GeV with previous runs at sqrt{s} ~ mZ and sqrt{s} ~ 183 GeV. The searches are sensitive to the h0, A0 -> qq, gg, tau+tau- and h0 -> A0A0 decay modes of the Higgs bosons. For the first time, the 2HDM(II) parameter space is explored in a detailed scan, and new flavour inde…

Searches for BSM Higgs bosons in fermion decay channels with CMS

Recent results on searches for Beyond Standard Model production of Higgs bosons in fermion decay channels are presented. The analyses are based on proton-proton collision data recorded by the CMS experiment at 7, 8, and 13 TeV centre-of-mass energies. The exclusion limits determined by the null results of the searches are interpreted in the framework of models that include extensions of the standard Higgs sector.

Searches and Prospects for Standard Model Higgs boson at the Tevatron

We report on results obtained at the Tevatron by the CDF and D0 collaborations up to June 2008 (2.4 fb-1), on searches for standard model (SM) Higgs bosons having a high mass (135-200 GeV). High mass Higgs bosons decay dominantly in WW and the presented searches are performed in the leptonic decay modes of the W's. Both direct production (ppbar -> H) and associated production (ppbar -> WH) are studied and eventually combined with all channels available at the Tevatron. Prospects for SM Higgs searches with the full projected Tevatron statistics are also given.

Higgs boson searches at the Tevatron

We present combined CDF and D0 searches for the Standard Model (SM) and Minimal Supersymmetric Standard Model (MSSM) Higgs boson using up to 6.7 fb$^{-1}$ of integrated luminosity from 1.96 TeV proton-antiproton collisions at the Tevatron. Specialized searches for Higgs bosons produced via gluon fusion, associated boson production, and vector boson fusion, decaying to $b\bar{b}$, $W^{+}W^{-}$, $τ^{+}τ^{-}$, and $γγ$ are combined to produce 95\% CL upper limits on SM Higgs production as a function of mass. Current Tevatron limits are shown, including a new exclusion for SM Higgs masses between …

Present Searches for Higgs Signatures at the Tevatron

We present results for various searches for signatures of standard and non-standard model Higgs boson decays conducted at the collider detectors CDF and DO using ~ 100 pb^-1 of integrated luminosity each from the Tevatron Collider Run 1 (1992-96) at \sqrt{s} = 1.8 TeV. No evidence for a Higgs boson decay is found and various limits are set.

Higgs Searches at the LHC

These proceedings summarize the sensitivity for the ATLAS and CMS experiments at the LHC to discover a Standard Model Higgs boson with relatively low integrated luminosity per experiment. A brief discussion on the expected performance from these experiments in searches for one or more of the Higgs bosons from the minimal version of the supersymmetric theories is also included.

Measurements and Searches of Higgs boson decays to two fermions

The interaction of the Higgs boson to fermion is most fragile part in the Standard model. The Higgs decay to ditau ($H\rightarrow ττ$) was observed and established in the LHC Run 1 data. This report presents recent measurements and searches of Higgs boson decay to two fermions. In particular this report focuses on results of the Higgs b oson decays to third-generation ($H\rightarrow b\bar{b}$) and second-generation ($H\rightarrow c\bar{c}$, $H\rightarrow μμ$) fermions using the LHC Run 2 data collected by the ATLAS experiment at the LHC.

Addendum to: Searches for Neutral Higgs Bosons in e+e- Collisions around sqrt(s) = 189 GeV

A more general MSSM parameter scan is described

Searches for BSM Higgs at the Tevatron

In this paper, we present the latest results of the searches for beyond standard model Higgs boson production at the Tevatron collider of Fermilab. Analyses have been carried out on samples of about 1-4 inverse fb of data collected by the CDF and D0 detectors. In particular, Higgs bosons in supersymmetric models and fermiophobic scenario have been investigated, and limits on production cross sections and theory parameters have been established.

Searches for non-Standard-Model Higgs Bosons at the Tevatron

Search for non-Standard-Model Higgs bosons is one of the major goals of the ongoing Fermilab Tevatron run. Large data sets accumulated by the CDF and D0 experiments break new grounds in sensitivity. We review recent Tevatron results on searches for Higgs bosons in Minimal Supersymmetric Model in the multi b-jet and tau-tau final states, as well as a search for fermiophobic Higgs in the multiphoton final state.

SM Higgs Searches at CDF

We present the latest CDF searches for the Standard Model Higgs boson with 1.96 TeV center-of-mass energy collisions produced at the Fermilab Tevatron. The data was collected with the CDF II detector at the Tevatron collider and correspond to an integrated luminosity from 2 to 4.8 1/fb. To achieve maximal sensitivity, many channels are analyzed including final states from gluon fusion, vector boson fusion, and associated production with W and Z bosons.

Searches at the Tevatron for a Low Mass Standard Model Higgs Boson

We report on searches for the standard model Higgs boson with the CDF and D0 detectors using up to 2.7 fb$^{-1}$ of $\sqrt s=$ 1.96 TeV proton anti-proton collisions at Fermilab's Tevatron. We focus on analyses that are sensitive to low mass Higgs production with $m_H<$ 140 GeV/$c^2$ favored by precision electroweak constraints. Both CDF and D0 find no evidence for Higgs boson production, and set upper limits on cross section times branching ratio. Several analyses improvements have increased the sensitivity to a Higgs signal faster than what is expected from increasing datasets alone.

ATLAS和CMS实验中共振与非共振多希格斯产生的研究

Searches for resonant and nonresonant multi-Higgs production in ATLAS and CMS

本文综述了ATLAS和CMS实验对希格斯玻色子自耦合的测量，通过双希格斯和三希格斯产生研究三线性与四次自耦合，并搜索重标量共振衰变到希格斯对或希格斯加新标量，涵盖多种末态。

Searches for Non-Standard-Model Higgs Bosons at the Tevatron

The Standard Model of particle physics has a number of asymmetries suggestive of a more fundamental theory, where the symmetries are restored. If the symmetry breaking scale is the electroweak scale, new Higgs bosons beyond that of the Standard Model could be observed at the Tevatron. Recent Tevatron searches have set the most stringent limits on new Higgs bosons in a variety of models.

Searches For The Standard Model Higgs Boson in final states with tau leptons at the Tevatron

We present the status of the Standard Model Higgs boson searches in final states containing τ leptons using data collected from p-pbar collisions at Fermilab Tevatron collider at center-of-mass energy of 1.96 TeV. A summary of the latest results from CDF and D0 collaborations is reported in this paper.

Higgs searches at the Tevatron

We review the status of the searches for the Higgs boson in the context of the Standard Model and the Minimal SuperSymmetric Standard Model by the CDF and DO experiments at the Fermilab Tevatron proton-antiproton collider, using up to $2.4 \rm{fb}^{-1}$ of Run II data. Since no evidence of signal above the expected background is observed in any of the various final states examined, limits at 95% confidence level are presented.

High Mass Standard Model Higgs searches at the Tevatron

We present the results of searches for the Standard Model Higgs boson decaying predominantly to WW pairs, at a center-of-mass energy of sqrt(s)=1.96 TeV, using up to 8.2 fb^{-1} of data collected with the CDF and D0 detectors at the Fermilab Tevatron collider. The analysis techniques and the various channels considered are discussed. These searches result in exclusions across the Higgs mass range of 156.5<mH<173.7 GeV for CDF and 161<mH<170 GeV for D0.

Standard Model Higgs Searches at the LHC

An overview of the searches for the Standard Model Higgs boson at the LHC is presented. The main Higgs production and decay modes that have been studied are introduced, and the analysis techniques and the recent developments done by the ATLAS and CMS experiments are described. Some preliminary results from current studies are included. The discovery potential within the first few years of physics running is evaluated.

Higgs Boson Searches at CDF

Results are presented on searches for standard model and non-standard model production of a Higgs boson in pbar-p collisions at sqrt{s}= 1.96 TeV with the CDF II detector at the Fermilab Tevatron. Using data corresponding to 2-3.6 1/fb of integrated luminosity, searches are performed in a number of different production and decay modes. No excess in data above that expected from backgrounds is observed; therefore, we set upper limits on the production cross section times branching fraction as a function of the Higgs boson mass.

LHC Higgs Boson searches

A summary of the Higgs boson searches by the ATLAS and CMS collabrations using 1 f b-1 of LHC data is presented, concentrating on the Standard Model Higgs boson. Both experiments have the sensitivity to exclude at 95% CL a Standard Model Higgs boson in most of the Higgs boson mass region between about 130 GeV and 400 GeV. The observed data allow the exclusion of a Higgs Boson of mass 155 GeV to 190 GeV and 295 GeV to 450 GeV (ATLAS) and 149 GeV to 206 GeV and 300 GeV to 440 GeV (CMS). The lower limits are not as constraining as might be expected due to an excess in both experiments of order 2-…

通过重共振衰变寻找希格斯玻色子产生的研究

Searches for Higgs boson production through decays of heavy resonances

本文回顾了CMS合作组利用13 TeV质子对撞数据搜索重共振衰变产生希格斯玻色子的现状，给出多搜索道组合结果及对新物理场景的限制，并首次研究窄宽度近似有效性和HL-LHC发现潜力。

Higgs Boson Properties and BSM Higgs Boson Searches at LHC

At the end of 2008, the Large Hadron Collider (LHC) will come into operation and the two experiments ATLAS and CMS will start taking data from proton-proton collisions at a center-of-mass energy of \sqrt{s}=14 TeV. In preparation for the data taking period, the discovery potential for Higgs bosons beyond the Standard Model has been updated by both experiments and is reviewed here. In addition, the prospects for measuring the properties of a Higgs boson like its mass and width, its CP eigenvalues and its couplings to fermions and gauge bosons are discussed.

Higgs Searches

We present the status and prospects of Higgs searches at the Tevatron and the LHC. Results from the Tevatron are using up to 5/fb of data collected with the CDF and D0 detectors. The major contributing processes include associated production with vector bosons and gluon fusion. Improvements across the full mass range resulting from the larger data sets, improved analyses techniques and increased signal acceptance are discussed. Recent results exclude the SM Higgs boson in a mass range of 160 < mH < 170 GeV. Searches for the neutral MSSM Higgs boson in the region 90 < mA < 200 GeV exclude tanB …

Searches for neutral Higgs bosons in e+e- collisions at centre-of-mass energies from 192 to 202GeV

Searches for neutral Higgs bosons are performed with the 237 pb-1 of data collected in 1999 by the ALEPH detector at LEP, for centre-of-mass energies between 191.6 and 201.6 GeV. These searches apply to Higgs bosons within the context of the Standard Model and its minimal supersymmetric extension (MSSM) as well as to invisibly decaying Higgs bosons. No evidence of a signal is seen. A lower limit on the mass of the Standard Model Higgs boson of 107.7 GeV/c2 at 95% confidence level is set. In the MSSM, lower limits of 91.2 and 91.6 GeV/c2 are derived for the masses of the neutral Higgs bosons h …

Searches for Higgs and BSM at the Tevatron

This paper presents an overview of recent experimental direct searches for Higgs-boson and beyond-the-standard-model (BSM) physics shown in the plenary session at the SUSY07 conference. The results reported correspond to an integrated luminosity of up to 2 fb-1 of Run II data from $p\bar{p}$ collisions collected by the CDF and D0 experiments at the Fermilab Tevatron Collider. Searches covered include: the standard model (SM) Higgs boson (including sensitivity projections), the minimal supersymmetric extension of the standard model (MSSM), charged Higgs bosons and extended Higgs models, supersy…

Searches for MSSM Higgs bosons at ATLAS and CMS

The Minimal Supersymmetric extension of the Standard Model (MSSM) predicts the existence of three neutral and two charged Higgs bosons. Searches for these MSSM Higgs bosons are presented, based on proton-proton collisions recorded in 2011 and 2012 by the ATLAS and CMS experiments at the LHC. The neutral Higgs bosons are searched through their decays into pairs of oppositely charged tau leptons. The exclusion limits at 95% confidence level are shown as a function of the $m_A$ and $\tanβ$ parameters. The search for the charged Higgs bosons is based on their production through the decays of top q…

Searches for Beyond the Standard Model Higgs Bosons in ppbar collisions at sqrt{s}=1.96 TeV

The recent results on various Beyond the Standard Model (BSM) Higgs boson searches performed by the DZERO experiment at the Tevatron are presented here. In particular, the Higgs bosons in supersymmetric models and fermiophobic scenario have been investigated. No significant excess over the Standard Model (SM) expectations have been observed and accordingly limits have been established on the corresponding model parameters.

Searches for the Standard Model Higgs Boson at the Tevatron

The CDF and D0 experiments at the Tevatron have searched for the Standard Model Higgs boson in data collected between 2001 and 2004. Upper limits have been placed on the production cross section times branching ratio to b-antib pairs or WW pairs as a function of the Higgs boson mass. Projections indicate that the Tevatron experiments have a chance of discovering a MH = 115 GeV Higgs with the total dataset foreseen by 2009, or excluding it at 95% C.L. up to a mass of 135 GeV.

Supersymmetry and Beyond Standard Model Higgs searches at ATLAS

The searches for supersymmetric and beyond Standard Model Higgs boson with the ATLAS detector are presented. The results are based on integrated luminosity of 35 pb$^{-1}$ to 1.6 fb$^{-1}$ of proton-proton collision data recorded at a centre-of-mass energy of 7 TeV at LHC. No signal is observed in any of the investigated channel and exclusion limits on production cross-sections are given as function of Higgs boson mass and of minimal supersymmetric model parameters.