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Using the LHC and Tevatron data, we set upper and lower limits on the total width of the Higgs-like boson. The upper limit is based on the well-motivated assumption that the Higgs coupling to a W or Z pair is not much larger than in the…

高能物理 - 唯象学 · 物理学 2013-02-28 Bogdan A. Dobrescu , Joseph D. Lykken

A primary goal of present and future colliders is measuring the Higgs couplings to Standard Model (SM) particles. Any observed deviation from the SM predictions for these couplings is a sign of new physics whose energy scale can be bounded…

高能物理 - 唯象学 · 物理学 2021-07-13 Fayez Abu-Ajamieh , Spencer Chang , Miranda Chen , Markus A. Luty

Inclusive Standard Model Higgs boson pair production and subsequent decay to same-sign dileptons via weak gauge W bosons at the CERN Large Hadron Collider has the capability to determine the Higgs boson self-coupling, lambda. The large top…

高能物理 - 唯象学 · 物理学 2014-11-17 Uli Baur , Tilman Plehn , David Rainwater

Recently, the ATLAS and CMS collaborations have announced the discovery of a 125 GeV particle, commensurable with the Higgs boson. We analyze the 2011 and 2012 LHC and Tevatron Higgs data in the context of simplified new physics models,…

高能物理 - 唯象学 · 物理学 2015-06-05 Dean Carmi , Adam Falkowski , Eric Kuflik , Tomer Volansky , Jure Zupan

Studies of the spin, parity and tensor couplings of the Higgs boson in the $H\rightarrow ZZ^*\rightarrow 4\ell$, $H\rightarrow WW^* \rightarrow e\nu\mu\nu$ and $H\rightarrow \gamma \gamma$ decay processes at the LHC are presented. The…

高能物理 - 实验 · 物理学 2015-10-26 ATLAS Collaboration

A search is performed for Higgs bosons produced in association with top quarks using the diphoton decay mode of the Higgs boson. Selection requirements are optimized separately for leptonic and fully hadronic final states from the top quark…

高能物理 - 实验 · 物理学 2014-12-23 ATLAS Collaboration

The experimental results of the search for the Standard Model Higgs boson with the ATLAS detector at the Large Hadron Collider are reported, based on a dataset of pp collision data with an integrated luminosity of up to 4.9 fb^-1 at…

高能物理 - 实验 · 物理学 2019-08-13 Sandra Kortner

We present a search for the standard model Higgs boson produced in association with a W boson in sqrt(s) = 1.96 TeV p-pbar collision data collected with the CDF II detector at the Tevatron corresponding to an integrated luminosity of 9.45…

高能物理 - 实验 · 物理学 2012-10-23 The CDF Collaboration

Several extensions of the Standard Model require the burden of electroweak symmetry breaking to be shared by multiple states or sectors. This leads to the possibility of the top quark interacting with a scalar more strongly than it does…

高能物理 - 唯象学 · 物理学 2009-10-30 Michael Spira , James D. Wells

A study of the $CP$ properties of the interaction between the Higgs boson and top quarks is presented. Higgs bosons are identified via the diphoton decay channel ($H \rightarrow \gamma\gamma$) and their production in association with a top…

高能物理 - 实验 · 物理学 2020-08-12 ATLAS Collaboration

The LHC experiments have analyzed the 7 and 8 TeV LHC data in the main Higgs production and decay modes. Current analyses only loosely constrain an anomalous top-Higgs coupling in a direct way. In order to strongly constrain this coupling,…

高能物理 - 唯象学 · 物理学 2013-09-27 Sanjoy Biswas , Emidio Gabrielli , Fabrizio Margaroli , Barbara Mele

We show the latest results from the CDF and D0 collaborations on the study of the Higgs boson, stemming from the analysis of the entire Tevatron Run\,II dataset. Combining the results of many individual analyses, most of which use the full…

高能物理 - 实验 · 物理学 2014-09-17 Fabrizio Margaroli

Higgs coupling deviations from Standard Model predictions contain information about two scales of Nature: that of new physics responsible for the deviation, and the scale where new bosons must appear. The two can coincide, but they do not…

高能物理 - 唯象学 · 物理学 2023-08-11 Raffaele Tito D'Agnolo , Florian Nortier , Gabriele Rigo , Pablo Sesma

A search for a standard model Higgs boson produced in association with a top-quark pair and decaying to bottom quarks is presented. Events with hadronic jets and one or two oppositely charged leptons are selected from a data sample…

高能物理 - 实验 · 物理学 2015-06-16 CMS Collaboration

A search for heavy pseudo-scalar ($A$) and scalar ($H$) Higgs bosons decaying into a top-quark pair ($t\bar{t}$) has been performed with 140 fb$^{-1}$ of proton-proton collision data collected by the ATLAS experiment at the Large Hadron…

高能物理 - 实验 · 物理学 2024-08-19 ATLAS Collaboration

The CMS collaboration has recently produced results of a number of searches for new physics processes using data collected during the 2011 run of the Large Hadron Collider. Up to 5 inverse femtobarns of proton-proton collisions at 7 TeV…

高能物理 - 实验 · 物理学 2019-08-13 Tommaso Dorigo

The mass-generation mechanism is one of the most important problems in modern particle physics. The discovery and study of the Higgs boson would greatly contribute to the understanding and solving of this problem. One of the unknowns in the…

高能物理 - 唯象学 · 物理学 2011-09-21 Nikos D. Giokaris

With the upgrade of the LHC, the couplings of the observed Higgs particle to fermions and gauge bosons will be measured with a much higher experimental accuracy than current measurements, but will still be limited by an order 10%…

高能物理 - 唯象学 · 物理学 2016-05-04 Abdelhak Djouadi , Jérémie Quevillon , Roberto Vega-Morales

The charged Higgs boson plays an essential role in distinguishing between a wide variety of standard model extensions with multiple Higgs doublets, and has been searched for in various collider experiments. This paper expands our previous…

高能物理 - 唯象学 · 物理学 2023-09-12 ChunHao Fu , Jun Gao

Searching for and potential discovery of Higgs boson(s) both within and beyond the standard model is perhaps the most visible physics goal of the current Fermilab Tevatron program. In this proceeding, recent results from both the CDF and…

高能物理 - 实验 · 物理学 2019-08-14 Jianming Qian