scholarly journals Little hierarchy problem for new physics just beyond the LHC

2013 ◽  
Vol 87 (3) ◽  
Author(s):  
F. Bazzocchi ◽  
M. Fabbrichesi
Keyword(s):  
New Physics ◽  
Hierarchy Problem ◽  
Little Hierarchy Problem

The Lagrangians in Rξ gauge of the left–right twin Higgs model and the application to processes gg → h and h → γγ

2016 ◽  
Vol 31 (10) ◽  
pp. 1650059
Author(s):  
Guo-Li Liu ◽  
Jun-Peng Li ◽  
Xiao-Fei Guo ◽  
Xiao-Fang Han
Keyword(s):  
Standard Model ◽  
Discrete Symmetry ◽  
New Physics ◽  
Higgs Model ◽  
Hierarchy Problem ◽  
The Standard Model ◽  
Physics Model ◽  
Little Hierarchy Problem

The left–right twin Higgs (LRTH) model, which adds an extra set of the Higgs to the Standard Model (SM) Higgs spectrum by the left–right discrete symmetry, is one of the phenomenological realization of the new physics models to solve the little hierarchy problem. In this paper, we will, in the [Formula: see text] gauge, give the complete Lagrangians in this new physics model and then apply them to the processes [Formula: see text] and [Formula: see text].

scholarly journals NONUNIVERSAL GAUGINO MASSES AND NATURAL SUPERSYMMETRY

2013 ◽  
Vol 28 (13) ◽  
pp. 1350046 ◽  
Author(s):  
ILIA GOGOLADZE ◽  
FARIHA NASIR ◽  
QAISAR SHAFI
Keyword(s):  
Standard Model ◽  
Quark Mass ◽  
Higgs Mass ◽  
Mass Range ◽  
Fine Tuning ◽  
Hierarchy Problem ◽  
Light Stop ◽  
High Scale ◽  
Little Hierarchy Problem ◽  
Gaugino Masses

We demonstrate that natural supersymmetry is readily realized in the framework of SU(4)c×SU(2)L×SU(2)Rwith nonuniversal gaugino masses. Focusing on ameliorating the little hierarchy problem, we explore the parameter space of this model which yields small fine-tuning measuring parameters (natural supersymmetry) at the electroweak scale (ΔEW) as well as at high scale (ΔHS). It is possible to have both ΔEWand ΔHSless than 100 in these models, (2% or better fine-tuning), while keeping the light CP-even (Standard Model-like) Higgs mass in the 123–127 GeV range. The light stop quark mass lies in the range [Formula: see text], and the range for the light stau lepton mass is [Formula: see text]. The first two family squarks are in the mass range [Formula: see text], and for the gluino we find [Formula: see text]. We do not find any solution with natural supersymmetry which yields significant enhancement for Higgs production and decay in the diphoton channel.

scholarly journals Amelioration of the little hierarchy problem inSU(4)c×SU(2)L×SU(2)R

2009 ◽  
Vol 80 (10) ◽  
Author(s):  
Ilia Gogoladze ◽  
Mansoor Ur Rehman ◽  
Qaisar Shafi
Keyword(s):  
Hierarchy Problem ◽  
Little Hierarchy Problem

scholarly journals Little Supersymmetry and the Supersymmetric Little Hierarchy Problem

2004 ◽  
Vol 2004 (10) ◽  
pp. 036-036 ◽  
Author(s):  
Andreas Birkedal ◽  
Z Chacko ◽  
Mary K Gaillard
Keyword(s):  
Hierarchy Problem ◽  
Little Hierarchy Problem

scholarly journals Solving the Little Hierarchy Problem with a Singlet and ExplicitμTerms

2010 ◽  
Vol 105 (9) ◽  
Author(s):  
Antonio Delgado ◽  
Christopher Kolda ◽  
J. Pocahontas Olson ◽  
Alejandro de la Puente
Keyword(s):  
Hierarchy Problem ◽  
Little Hierarchy Problem

scholarly journals Little solution to the little hierarchy problem: A vectorlike generation

2010 ◽  
Vol 81 (5) ◽  
Author(s):  
Peter W. Graham ◽  
Ahmed Ismail ◽  
Surjeet Rajendran ◽  
Prashant Saraswat
Keyword(s):  
Hierarchy Problem ◽  
Little Hierarchy Problem

Flavor constraints on new physics

2014 ◽  
Vol 29 (22) ◽  
pp. 1430021 ◽  
Author(s):  
Jernej F. Kamenik
Keyword(s):  
Recent Progress ◽  
New Physics ◽  
Hierarchy Problem ◽  
Theoretical Understanding ◽  
Direct Production ◽  
Scale Theory ◽  
Null Results ◽  
Flavor Changing ◽  
The Standard Model ◽  
New Phenomena

We review the recent progress in our theoretical understanding of flavor-changing processes. The overall excellent agreement with the corresponding measurements allows to derive severe constraints on possible extensions of the Standard Model (SM). The important interplay between flavor, electroweak (EW) and Higgs boson probes of new phenomena is emphasized. Once the EW hierarchy problem is confronted with null results from searches for direct production of new particles at the LHC, a case can be made against purely flavor trivial new physics (NP) at the TeV scale. Theory implications of the few open experimental flavor puzzles are also briefly discussed.

Sign in / Sign up

Export Citation Format

Share Document