Semi-analytical approach to Higgs production at LEP 2
نویسندگان
چکیده
منابع مشابه
Hints of Higgs Boson Production at Lep
An excess of signal-like events above the expected background, corresponding to approximately three standard deviations, was observed in the search for the standard model Higgs boson at LEP in 2000. This excess is consistent with the existence of a 115 GeV/c Higgs particle. The LEP run in 2000 at centre-of-mass energies up to 209 GeV allowed the standard model Higgs boson search sensitivity at ...
متن کاملO(αsGFmt ) Corrections to Higgs Production at LEP
We evaluate the two-loop O(αsGFmt ) correction to the ZZH coupling in the Standard Model by means of a low-energy theorem, assuming that the top quark is much heavier than the Higgs boson. We then construct a heavy-top-quark effective Lagrangian for the ZZH interaction that accommodates the O(GFmt ) and O(αsGFmt ) corrections and derive from it the corresponding corrections to the H → ZZ decay ...
متن کاملHiggs Boson Searches at LEP 2
In this talk preliminary results of Higgs boson searches at LEP2 up to centre-of-mass energies of 183 GeV have been summarised. The main topics are searches for the Minimal Standard Model (MSM) Higgs boson and searches for neutral Higgs bosons of the Minimal Supersymmetric Standard Model (MSSM). No indication for Higgs production has been found. The experiments have published their Higgs search...
متن کاملHiggs Searches at Lep
The four LEP experiments ALEPH, DELPHI, L3 and OPAL have performed decay-mode independent searches for scalar bosons, flavour-independent Higgs boson searches, searches for Higgs bosons in the Standard Model and several Two-Higgs-Doublet models and searches for doubly charged Higgs bosons at centre-of-mass energies up to 209 GeV. The results obtained and mostly combined by the LEP Higgs working...
متن کاملProduction of Supersymmetric Higgs Bosons at LEP ⊗ LHC
Within the Minimal Supersymmetric Standard Model (MSSM), we study the production of the neutral scalar and pseudoscalar as well as the charged Higgs bosons together with fermions or sfermions in deep inelastic ep scattering at √ s = 1.6 TeV. We focus on the parameter space where a Higgs particle is likely to be invisible at LEP2 and LHC. Although we choose gaugino/higgsino mixing scenarios that...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 1994
ISSN: 0920-5632
DOI: 10.1016/0920-5632(94)90684-x