Results 161 to 170 of about 30,048 (244)

How large are hadronic contributions to h → γγ?

Journal of High Energy Physics
The decay of the Higgs boson into two photons, h → γγ, is a loop-induced process within the Standard Model, predominantly mediated by loops of W bosons and top quarks.
Ulrich Haisch
doaj   +1 more source

Flavor Changing Neutral Currents in a General Two Higgs Doublet Model: Using an Extended Sector to Search for New Physics [PDF]

, 2017
In this dissertation I present studies of flavor-changing neutral Higgs interactions in a general Two Higgs Doublet Model. I focus on the analytic calculation of φ → tc and φ → τ μ where φ = h0 , H0 , A0 .
McCoy, Brent, McCoy, Phillip (legal first name)   +1 more
core  

Enhanced sensitivity to the H → Zγ → ℓ + ℓ − γ decay at the LHC using machine learning and novel kinematic observables

Journal of High Energy Physics
At LHC energies, the Drell-Yan (Z/γ *) processes have a substantially large cross section. Their di-lepton (ℓ + ℓ − ) final state contributes significantly to many resonant signal regions, making them one of the dominant backgrounds in numerous physics ...
Manisha Kumari, Amal Sarkar
doaj   +1 more source

Quark mass effects in Higgs production

Journal of High Energy Physics
Abstract We examine the effect of finite top- and bottom-quark masses on the Higgs production cross section in the gluon-gluon fusion channel. We employ both $$ \overline{\textrm{MS}} $$ MS ¯
Michał Czakon, Felix Eschment, Marco Niggetiedt, Rene Poncelet, Tom Schellenberger   +4 more
openaire   +5 more sources

THE NEXT TO MINIMAL SUPERSYMMETRIC STANDARD MODEL WITH A MODERATE STOP MASS [PDF]

, 2008
In this thesis we analize the Next to Minimal Supersymmetric Standard Model (NMSSM), looking for a natural electroweak symmetry breaking. Focusing on a moderate stop mass and requiring perturbative unification of the gauge couplings (which after all is a
PAPPADOPULO, DUCCIO
core  

Higgs boson production and decay at the Tevatron [PDF]

, 1998
The theoretical status of Higgs boson production and decay at the Tevatron within the standard model and its minimal supersymmetric extension is reviewed.
Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany), Spira, M. (Hamburg Univ. (Germany). 2. Inst. fuer Theoretische Physik)   +1 more
core  

ATLAS MSSM Higgs search in SUSY cascade [PDF]

, 2008
The neutral MSSM Higgs boson production and following decay in heavy neutralino/chargino pairs has been studied for the ATLAS experiment. The final state with 4 leptons and missing energy is considered.
GENTILE, Simonetta, Gentile, S
core  

CP violation in top quark production at the LHC and two-Higgs-doublet models [PDF]

, 2003
Osland,Per:We discuss CP violation in top-antitop production at the LHC, induced by gluon fusion and final-state Higgs exchange. Results by Bernreuther and Brandenburg are confirmed and further reduced.
Osland, Per, Khater, Wafaa
core  

Sensitivity to CP $$ \mathcal{CP} $$ -violating effective couplings in the top-Higgs sector

Journal of High Energy Physics
The observed baryon asymmetry of the Universe requires new sources of charge-parity ( CP $$ \mathcal{CP} $$ ) violation beyond those in the Standard Model.
Víctor Miralles, Yvonne Peters, Eleni Vryonidou, Joshua K. Winter   +3 more
doaj   +1 more source

Higgs production in association with a single top quark at the LHC. [PDF]

Eur Phys J C Part Fields, 2015
Demartin F, Maltoni F, Mawatari K, Zaro M.   +3 more
europepmc   +1 more source