Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Howard E. Haber"'
Autor:
Howard E. Haber, Yosef Nir
Publikováno v:
Physics Letters B. 306:327-334
In LEP searches for the neutral CP -odd scalar A 0 of a multi-Higgs double model, experiments have searched for Z → h 0 A 0 (where h 0 is the lightest CP -even scalar). No model-independent limit on the A 0 mass can be deduced from present data if
Publikováno v:
Physical Review D. 46:3015-3024
The decay {ital h}{sup 0}{r arrow}{ital A}{sup 0}{ital A0} (where {ital h}{sup 0} and {ital A}{sup 0} are the lightest {ital CP}-even and {ital CP}-odd Higgs bosons of a two-Higgs-doublet model) is kinematically forbidden at the tree level in the min
Publikováno v:
Physical Review D. 46:2040-2051
The {ital CP}-odd Higgs boson {ital A}{sup 0} of a nonminimal Higgs model possesses no tree-level couplings to vector-boson pairs. As a result, many of the techniques employed to search for the standard model Higgs boson at the Superconducting Super
Publikováno v:
Physical Review D. 44:191-201
In two-Higgs-doublet models, the ${H}^{\ifmmode\pm\else\textpm\fi{}}{W}^{\ensuremath{\mp}}V$ vertex ($V=Z or \ensuremath{\gamma}$) does not occur at the tree level, but is generated at one-loop order. We derive explicit formulas for the contribution
Autor:
Heather E. Logan, Howard E. Haber
Publikováno v:
Physical Review D. 62
We explore the radiative corrections to the process Z → bb in models with ex- tended Higgs sectors. The observables Rb and Ab are sensitive to these corrections. Rb is the hadronic branching fraction of Z bosons to bb, Rb = ( Z → b ¯)/( Z → ha
We have studied the capabilities of the SDC detector to discover a charged Higgs boson in the decay t {yields} H{sup +}b for the particular case m{sub t} = 250 GeV/c{sup 2} and m{sub H}{sup {plus minus}} = 150 GeV/c{sup 2}. The two methods investigat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffd8abaabe45033a072138213175d0d7
https://doi.org/10.2172/5621614
https://doi.org/10.2172/5621614
Publikováno v:
Physics Letters B. 126:64-70
One major problem for supersymmetry has been the lack of any experimental motivation. Although scalar neutrinos are usually predicted to be among the lighter new particles, their presence has been expected to be hidden because of their decay into uno
Publikováno v:
Physical Review D. 29:1990-2004
We describe a simple, softly broken supersymmetric model of electroweak interactions. In its simplest form, supersymmetry breaking is imposed via explicit mass terms for scalar quarks and leptons. We apply this model to the discussion of the decay pr
Autor:
Howard E. Haber, Daniel Wyler
Publikováno v:
Nuclear Physics B. 323:267-310
We compute the partial width for neutralino radiative decay χ j 0 → χ i 0 γ in the minimal supersymmetric extension of the Standard Model, for arbitrary neutralino mixing and mass parameters. We identify regions of the supersymmetric parameter s
Publikováno v:
Physical review letters. 60(5)
In the minimal sypersymmetric model, we show that the branching ratio for a heavy gluino (M/sub g-italic-tilde/approx. >600 GeV) to decay directly into the lightest supersymmetric particle is less than 14%, independent of nearly all parameter assumpt