Higgs Search at LEP 2

1997 ◽  
Author(s):  
Javier Cuevas
Keyword(s):  
Higgs Search

scholarly journals Higgs search by CMS

2012 ◽  
Author(s):  
A. Kalinowski
Keyword(s):  
Higgs Search

scholarly journals Minijet veto: a tool for the heavy Higgs search at the LHC

1995 ◽  
Vol 346 (1-2) ◽  
pp. 106-114 ◽  
Author(s):  
V. Barger ◽  
R.J.N. Phillips ◽  
D. Zeppenfeld
Keyword(s):  
Higgs Search

Higgs Search with the Compact Muon Solenoid(CMS) detector at the Large Hadron Collider(LHC)

2005 ◽  
Vol 20 (15) ◽  
pp. 3400-3402
Author(s):  
◽  
SATYAKI BHATTACHARYA
Keyword(s):  
Large Hadron Collider ◽  
Standard Model ◽  
Compact Muon Solenoid ◽  
Vector Boson ◽  
Hadron Collider ◽  
Center Of Mass ◽  
Gluon Fusion ◽  
Mass Range ◽  
Early Years ◽  
Higgs Search

The Large Hadron Collider(LHC) is a proton proton collider being built at CERN, Geneva which will collide two 7 TeV proton beams giving a center of mass energy of 14 TeV. The Compact Muon Solenoid (CMS) is a multi-purpose detector at the LHC which is designed to discover the Higgs boson over the mass range of 90 to 1000 GeV. Since LEP searches have put a 95% C.L. lower bound on (standard model) Higgs mass of 114.4 GeV and theory excludes mass above about 1 TeV, CMS should discover the Higgs if it exists. In this paper, we will review CMS's Higgs-discovery potential both in the Standard Model and the Minimal Supersymmetric Standard Model for Higgs bosons produced in gluon-gluon fusion and in vector boson fusion mechanisms. Particular emphasis will be placed on discovery in the early years of running with luminosity of about 2 × 1033cm-2/s.

scholarly journals Jet Substructure as a New Higgs-Search Channel at the Large Hadron Collider

2008 ◽  
Vol 100 (24) ◽  
Author(s):  
Jonathan M. Butterworth ◽  
Adam R. Davison ◽  
Mathieu Rubin ◽  
Gavin P. Salam
Keyword(s):  
Large Hadron Collider ◽  
Hadron Collider ◽  
Jet Substructure ◽  
Higgs Search

THE USE OF NEURAL NETWORK CLASSIFIERS FOR HIGGS SEARCHES

1992 ◽  
Vol 03 (04) ◽  
pp. 611-636 ◽  
Author(s):  
ALESSANDRO PETROLINI
Keyword(s):  
Neural Network ◽  
Higgs Boson ◽  
Standard Model ◽  
High Energy ◽  
Multidimensional Analysis ◽  
Standard Model Higgs Boson ◽  
Delphi Detector ◽  
Higgs Search ◽  
Minimal Standard ◽  
Neural Network Classifiers

Neural Network Classifiers are used to separate the signal from the background in a High-Energy Physics problem. The basic principles of Multidimensional Analysis by means of Back-Propagation Neural Network Classifiers and the application to the Higgs search are discussed. A search for the Minimal Standard Model Higgs boson, through the reaction [Formula: see text], using the data collected in 1990 by the DELPHI detector at LEP is made. The technique used allows to reach good detection efficiencies and no evidence of the Minimal Standard Model Higgs boson with mass less than 37 GeV is found. The use of Neural Network Classifiers proves to be a very powerful classification method. A comparison of the method with standard analysis techniques is presented.

scholarly journals Higgs search and neural-net analysis

1993 ◽  
Vol 78 (1-2) ◽  
pp. 1-16 ◽  
Author(s):  
Georg Stimpfl-Abele ◽  
Pablo Yepes
Keyword(s):  
Neural Net ◽  
Higgs Search

scholarly journals Gauge-Singlet Vector-Like Fermion Dark Matter, LHC Diphoton Rate, and Direct Detection

2017 ◽  
Vol 2017 ◽  
pp. 1-14 ◽  
Author(s):  
Shrihari Gopalakrishna ◽  
Tuhin Subhra Mukherjee
Keyword(s):  
Dark Matter ◽  
Direct Detection ◽  
Gluon Fusion ◽  
Gauge Bosons ◽  
Hidden Sector ◽  
Dark Matter Relic Density ◽  
Higgs Search ◽  
Matter Model ◽  
Higgs Portal ◽  
Dark Matter Model

We study a gauge-singlet vector-like fermion hidden sector dark matter model, in which the communication between the dark matter and the visible standard model sector is via the Higgs-portal scalar-Higgs mixing and also via a hidden sector scalar with loop-level couplings to two gluons and also to two hypercharge gauge bosons induced by a vector-like quark. We find that the Higgs-portal possibility is stringently constrained to be small by the recent LHC di-Higgs search limits, and the loop induced couplings are important to include. In the model parameter space, we present the dark matter relic density, the dark-matter-nucleon direct detection scattering cross section, the LHC diphoton rate from gluon-gluon fusion, and the theoretical upper bounds on the fermion-scalar couplings from perturbative unitarity.

scholarly journals Production and decay of radion in Randall–Sundrum model at a photon collider

2014 ◽  
Vol 29 (27) ◽  
pp. 1450136 ◽  
Author(s):  
Gi-Chol Cho ◽  
Yoshiko Ohno
Keyword(s):  
Scalar Particle ◽  
Mass Region ◽  
Momentum Tensor ◽  
Beyond The Standard Model ◽  
Higgs Search ◽  
The Standard Model ◽  
Discovery Potential ◽  
Photon Collider ◽  
Warped Extra Dimension ◽  
Low Mass

A warped extra dimension model predicts an extra scalar particle beyond the Standard Model (SM) which is called a radion. Although interactions of the radion are similar to those of the Higgs boson in the SM, a relatively light radion (≲100 GeV) is not severely constrained from the Higgs search experiments at the LHC. In this paper we study discovery potential of the radion at a photon collider as an option of ILC. Owing to the trace anomaly of the energy–momentum tensor, both a production of radion in γγ collision and its decay to gluon pair are enhanced sizably. We find that the photon collider has a sensitivity for discovering the radion in low-mass region up to Λϕ~3 TeV, where Λϕ is a scale parameter which suppresses the interactions of radion to the SM particles.

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