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Despite intensive searches at the LHC, no new fundamental particle has been discovered since the discovery of the 125 GeV Higgs boson. In general, a new physics discovery is challenging without a UV-complete model because different channels…

High Energy Physics - Phenomenology · Physics 2024-04-24 Andreas Crivellin , Saiyad Ashanujjaman , Sumit Banik , Guglielmo Coloretti , Siddharth P. Maharathy , Bruce Mellado

We construct a minimal calculable model of a light dilaton based on the scenario where only top and Higgs sectors are involved in a quasiconformal dynamics. The model consistently accommodates the electroweak precision tests even when the…

High Energy Physics - Phenomenology · Physics 2013-05-29 Tomohiro Abe , Ryuichiro Kitano , Yasufumi Konishi , Kin-ya Oda , Joe Sato , Shohei Sugiyama

Updated Standard Model Higgs boson search results from the Tevatron experiments are presented. We focus on the updated CDF MET+bb result, where a significant shift in observed limits is explained. For the Tevatron combinations, upper limits…

High Energy Physics - Experiment · Physics 2022-03-02 Kyle J. Knoepfel

In these proceedings I cover the latest results on the production and decay of the recently discovered Higgs boson. While the spin and properties of the new boson, such as its mass and couplings to bosons and fermions, are covered in a…

High Energy Physics - Experiment · Physics 2013-10-23 Greg Landsberg

After the Higgs boson discovery in 2012, the investigation of its properties and compatibility with the standard model predictions is central to the physics program of the LHC experiments. Likewise, the study of the top quark is still…

High Energy Physics - Experiment · Physics 2017-08-29 Rebeca Gonzalez Suarez

Recent LHC highlights of searches for Higgs bosons beyond the Standard Model are presented. The results by the ATLAS and CMS collaborations are based on 2011 and 2012 proton-proton collision data at centre-of-mass energies of 7 and 8 TeV,…

High Energy Physics - Experiment · Physics 2019-08-14 Clemens Lange

The recent discovery of a new boson of mass roughly 125 GeV has been reported by the ATLAS and CMS collaborations. Although its signals in various decay modes resemble those of the standard model (SM) Higgs boson, observed are the…

High Energy Physics - Phenomenology · Physics 2015-06-11 Sanghyeon Chang , Sin Kyu Kang , Jong-Phil Lee , Kang Young Lee , Seong Chan Park , Jeonghyeon Song

Recent searches for Higgs bosons in the context of extensions to the Standard Model of Particle Physics with the ATLAS detector at the Large Hadron Collider are discussed. All presented analyses use data recorded at a pp center-of-mass…

High Energy Physics - Experiment · Physics 2019-08-13 J. Kroseberg

The Minimal Dilaton Model (MDM) extends the Standard Model (SM) by a singlet scalar, which can be viewed as a linear realization of general dilaton field. This new scalar field mixes with the SM Higgs field to form two mass eigenstates with…

High Energy Physics - Phenomenology · Physics 2015-06-18 Junjie Cao , Yangle He , Peiwen Wu , Mengchao Zhang , Jingya Zhu

CMS results on the measurement of properties of the Higgs-like particle discovered last summer with a mass near 126 GeV are presented. The results are based on a data samples corresponding to an integrated luminosity of up to 5.1 fb-1 at 7…

High Energy Physics - Experiment · Physics 2013-10-16 Sabino Meola

An overview of recent results in Higgs boson physics obtained with the ATLAS and CMS experiments at the Large Hadron Collider located at CERN, Geneva, is presented. The focus is on measurements of the properties of the recently discovered…

High Energy Physics - Experiment · Physics 2019-08-15 Martin Flechl

In the framework of strongly interacting dynamics for electroweak symmetry breaking, heavy composite particles may arise and cause observable effects, as they should couple strongly to the resulting Higgs boson and affect the signals that…

High Energy Physics - Phenomenology · Physics 2015-10-13 A. E. Cárcamo Hernández , Claudio O. Dib , Alfonso R. Zerwekh

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…

High Energy Physics - Experiment · Physics 2018-10-03 Elliot Reynolds

Updated LHC data on the new 126 GeV boson during the 7 and 8 TeV runnings strengthen the standard model Higgs boson interpretation further. Through the global $\chi^2$ analysis, we investigate whether the new particle could be one of the…

High Energy Physics - Phenomenology · Physics 2015-06-17 Sanghyeon Chang , Sin Kyu Kang , Jong-Phil Lee , Kang Young Lee , Seong Chan Park , Jeonghyeon Song

We present the result of searches for a low mass Standard Model Higgs boson produced in association with a $W$ or a $Z$ boson at a center-of-mass energy of $\sqrt{s}=$1.96 TeV with the CDF and D0 detectors at the Fermilab Tevatron collider.…

High Energy Physics - Experiment · Physics 2011-11-02 Karolos Potamianos

Results are reported from a search for non-standard-model Higgs boson decays to pairs of new light bosons, each of which decays into the oppositely charged dimuon final state. The new bosons may be produced either promptly or via a decay…

High Energy Physics - Experiment · Physics 2013-11-11 CMS Collaboration

This paper presents a search for decays of the Higgs boson with a mass of 125 GeV into a pair of new pseudoscalar particles, $H\rightarrow aa$, where one $a$-boson decays into a $b$-quark pair and the other into a muon pair. The search uses…

High Energy Physics - Experiment · Physics 2022-02-07 ATLAS Collaboration

Electroweak precision measurements indicate that the standard model Higgs boson is light and that it could have already been discovered at LEP 2, or might be found at the Tevatron Run 2. In the context of a TeV^-1 size extra dimensional…

High Energy Physics - Phenomenology · Physics 2008-12-18 A. Aranda , C. Balazs , J. L. Diaz-Cruz

A new particle - discovered recently with the Atlas and CMS detectors at LHC - has been interpreted as the long sought Higgs-boson. A corresponding scalar field is needed to make the weak interaction gauge invariant and to understand the…

General Physics · Physics 2013-10-01 H. P. Morsch

A short review of the theory and phenomenology of Higgs bosons is given, with focus on the Standard Model (SM) and the minimal supersymmetric extension of the Standard Model (MSSM). The potential for Higgs boson discovery at the Tevatron…

High Energy Physics - Phenomenology · Physics 2007-05-23 Howard E. Haber