Complete tree-level calculation of the reaction $$e^ + e^ - \to \mu ^ + \mu ^ - b\bar b$$ and the Higgs boson signal at LEP200 and NLC energies

1994 ◽  
Vol 61 (4) ◽  
pp. 675-681 ◽  
Author(s):  
E. Boos ◽  
M. Sachwitz ◽  
H. J. Schreiber ◽  
S. Shichanin
Keyword(s):  
Higgs Boson ◽  
Tree Level ◽  
Complete Tree ◽  
Level Calculation

scholarly journals HIGGS BOSON PRODUCTION UNDER THE RESONANCE THRESHOLD AT LEP II

1996 ◽  
Vol 11 (28) ◽  
pp. 5015-5026 ◽  
Author(s):  
E. BOOS ◽  
M. DUBININ ◽  
L. DUDKO
Keyword(s):  
Higgs Boson ◽  
Tree Level ◽  
Boson Production ◽  
Higgs Boson Production ◽  
Quark Fragmentation ◽  
Complete Tree ◽  
B Quark

We consider the possibility of Higgs boson detection at LEP II under the resonance threshold [Formula: see text] in the framework of complete tree level approach to the calculation of the [Formula: see text] amplitude, simulating b quark fragmentation to hadrons and taking into account typical detector properties. At the energy below the 2mZ threshold [Formula: see text] Higgs boson production under the mH + mZ threshold is almost background free.

scholarly journals Higgs boson signal at complete tree level in the SM extension by dimension-six operators

2014 ◽  
Vol 89 (3) ◽  
Author(s):  
E. Boos ◽  
V. Bunichev ◽  
M. Dubinin ◽  
Y. Kurihara
Keyword(s):  
Higgs Boson ◽  
Tree Level ◽  
Complete Tree

scholarly journals THE SUYAMA–YAMAGUCHI CONSISTENCY RELATION IN THE PRESENCE OF VECTOR FIELDS

2013 ◽  
Vol 28 (06) ◽  
pp. 1350012 ◽  
Author(s):  
JUAN P. BELTRÁN ALMEIDA ◽  
YEINZON RODRÍGUEZ ◽  
CÉSAR A. VALENZUELA-TOLEDO
Keyword(s):  
Distribution Function ◽  
Probability Distribution Function ◽  
Vector Fields ◽  
Tree Level ◽  
Microwave Background ◽  
Curvature Perturbation ◽  
Consistency Relation ◽  
Complete Tree ◽  
Level Calculation ◽  
Inflationary Models

We consider inflationary models in which vector fields (VF) are responsible for part or eventually all of the primordial curvature perturbation ζ. Such models are phenomenologically interesting since they naturally introduce anisotropies in the probability distribution function of the primordial fluctuations that can leave a measurable imprint in the cosmic microwave background. Assuming that non-Gaussianity (NG) is generated due to the superhorizon evolution, we use the δN formalism to do a complete tree level calculation of the NG parameters f NL and τ NL in the presence of VF. We isolate the isotropic pieces of the NG parameters, which anyway have contributions from the VF, and show that they obey the Suyama–Yamaguchi (SY) consistency relation [Formula: see text]. Other ways of defining the NG parameters, which could be observationally relevant, are stated and the respective SY-like consistency relations are obtained.

Complete tree level calculation of the process and the Higgs signal at LEP200 and next linear colliders

1994 ◽  
Vol 329 (2-3) ◽  
pp. 379-385 ◽  
Author(s):  
M. Dubinin ◽  
V. Edneral ◽  
Y. Kurihara ◽  
Y. Shimizu
Keyword(s):  
Tree Level ◽  
Linear Colliders ◽  
Complete Tree ◽  
Level Calculation ◽  
Higgs Signal

scholarly journals ASYMPTOTICALLY SAFE WEAK INTERACTIONS

2011 ◽  
Vol 26 (21) ◽  
pp. 1571-1576 ◽  
Author(s):  
XAVIER CALMET
Keyword(s):  
General Relativity ◽  
Fixed Point ◽  
Higgs Boson ◽  
Weak Interactions ◽  
Higgs Field ◽  
Tree Level ◽  
Electroweak Interactions ◽  
Weak Scale

We emphasize that the electroweak interactions without a Higgs boson are very similar to quantum general relativity. The Higgs field could just be a dressing field and might not exist as a propagating particle. In that interpretation, the electroweak interactions without a Higgs boson could be renormalizable at the nonperturbative level because of a nontrivial fixed point. Tree-level unitarity in electroweak bosons scattering is restored by the running of the weak scale.

Full tree-level calculation of theqq→qqWZelectroweak process at hadron supercolliders

1992 ◽  
Vol 46 (5) ◽  
pp. 2028-2039 ◽  
Author(s):  
V. Barger ◽  
Kingman Cheung ◽  
T. Han ◽  
A. Stange ◽  
D. Zeppenfeld
Keyword(s):  
Tree Level ◽  
Level Calculation

PRODUCTION OF CHARGED HIGGS BOSON ASSOCIATED WITH A W GAUGE BOSON AT THE LHC

2011 ◽  
Vol 26 (32) ◽  
pp. 2391-2402
Author(s):  
CHONG-XING YUE ◽  
XIAO-JIAO GUO ◽  
NA LI
Keyword(s):  
Higgs Boson ◽  
Cross Section ◽  
Gauge Boson ◽  
Production Cross Section ◽  
Production Cross ◽  
Charged Higgs Boson ◽  
Tree Level ◽  
Charged Higgs ◽  
Triplet Model ◽  
The One

Production of charged Higgs boson associated with a W gauge boson at the LHC is mainly induced by the tree-level [Formula: see text] annihilation and the one-loop gg fusion. In the context of the Higgs triplet model (HTM) and the left–right twin Higgs (LRTH) model, we calculate the production cross-section σ of the process pp→H±W∓ and compare our results with those given by supersymmetry (SUSY). We find that, in most of the parameter space of the HTM, the production cross-section σ is smaller than that predicted by the LRTH model or SUSY. The value of σ within the LRTH model is larger or smaller than the SUSY case, which depends on the relevant free parameters.

scholarly journals The complete tree-level result up to order 1/Q for polarized deep-inelastic leptoproduction

1997 ◽  
Vol 484 (1-2) ◽  
pp. 538-540 ◽  
Author(s):  
P.J. Mulders ◽  
R.D. Tangerman
Keyword(s):  
Tree Level ◽  
Complete Tree
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