scholarly journals h0→cc¯as a test case for quark flavor violation in the MSSM

2015 ◽  
Vol 91 (1) ◽  
Author(s):  
A. Bartl ◽  
H. Eberl ◽  
E. Ginina ◽  
K. Hidaka ◽  
W. Majerotto
Keyword(s):  
Test Case ◽  
Flavor Violation ◽  
Quark Flavor

scholarly journals $h^0(125GeV) \to c \bar{c}$ as a test case for quark flavor violation in the MSSM

2016 ◽  
Author(s):  
Keisho Hidaka ◽  
Alfred Bartl ◽  
Helmut Eberl ◽  
Elena Ginina ◽  
Walter Majerotto
Keyword(s):  
Test Case ◽  
Flavor Violation ◽  
Quark Flavor

scholarly journals Flavor physics in warped space

2015 ◽  
Vol 30 (15) ◽  
pp. 1540013 ◽  
Author(s):  
Gero von Gersdorff
Keyword(s):  
Cp Violation ◽  
Flavor Physics ◽  
Lepton Flavor Violation ◽  
Lepton Sector ◽  
Lepton Flavor ◽  
Flavor Violation ◽  
Quark Flavor ◽  
Dimensional Models ◽  
Electroweak Precision ◽  
Kaluza Klein

We review constraints from quark and lepton flavor violation on extra dimensional models with warped geometry, both in the minimal and the custodial model. For both scenarios, Kaluza–Klein (KK) masses that are large enough to suppress constraints from electroweak precision tests (EWPT) also sufficiently suppress all quark flavor and CP violation, with the exception of CP violation in [Formula: see text] mixing and (to a lesser extend) in [Formula: see text] mixing. In the lepton sector the minimal scenario leads to excessively large contributions to μ→eγ transitions, requiring KK masses of at least 20 TeV or larger.

scholarly journals Flavor violating bosonic squark decays at LHC

2014 ◽  
Vol 29 (07) ◽  
pp. 1450035 ◽  
Author(s):  
A. Bartl ◽  
H. Eberl ◽  
E. Ginina ◽  
B. Herrmann ◽  
K. Hidaka ◽  
...  
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Supersymmetric Standard Model ◽  
Minimal Supersymmetric Standard Model ◽  
B Meson ◽  
Branching Ratio ◽  
Final States ◽  
Flavor Violation ◽  
The Third ◽  
Quark Flavor

We study quark flavor violation (QFV) in the squark sector of the Minimal Supersymmetric Standard Model (MSSM). We assume mixing between the second and the third squark generations, i.e. [Formula: see text] mixing. We focus on QFV effects in bosonic squark decays, in particular on the decay into the lightest Higgs boson [Formula: see text], where [Formula: see text] are the lightest up-type squarks. We show that the branching ratio of this QFV decay can be quite large (up to 50%) due to large QFV trilinear couplings, and large [Formula: see text] and [Formula: see text] mixing, despite the strong constraints on QFV from B meson data. This can result in characteristic QFV final states with significant rates at LHC (14 TeV), such as [Formula: see text] and [Formula: see text]. The QFV bosonic squark decays can have an influence on the squark and gluino searches at LHC.

scholarly journals Correlation between the decays h0 → γγ/gg in the MSSM with quark flavor violation

2019 ◽  
Vol 34 (22) ◽  
pp. 1950120
Author(s):  
H. Eberl ◽  
K. Hidaka ◽  
E. Ginina
Keyword(s):  
Standard Model ◽  
Width Ratio ◽  
Strongly Correlated ◽  
Relative Deviation ◽  
Precision Data ◽  
Flavor Violation ◽  
Quark Flavor ◽  
Fixed Reference ◽  
Electroweak Precision ◽  
Electroweak Precision Data

We study the loop-induced decays [Formula: see text] and [Formula: see text] in the Minimal Supersymmetric Standard Model (MSSM) with quark flavor violation (QFV), identifying [Formula: see text] with the Higgs boson with a mass of 125 GeV, where [Formula: see text] and [Formula: see text] are photon and gluon, respectively. We perform a MSSM parameter scan and a detailed analysis around a fixed reference point respecting theoretical constraints from vacuum stability conditions and experimental constraints, such as those from [Formula: see text]-meson data and electroweak precision data, as well as recent limits on Supersymmetric (SUSY) particle masses from LHC experiments. We find that (i) the relative deviation of the decay width [Formula: see text] from the Standard Model value, [Formula: see text], can be large and negative, [Formula: see text], (ii) the analogous deviation of [Formula: see text] is strongly correlated, [Formula: see text] for [Formula: see text], (iii) the relative deviation of the width ratio [Formula: see text] from the SM value, [Formula: see text], can be large (up to [Formula: see text]20%), (iv) the deviations can be large due to the up-type squark loop contributions, (v) the SUSY QFV parameters can have a significant effect on these deviations. Such large deviations can be observed at a future [Formula: see text] collider like ILC. Observation of the deviation patterns as shown in this study would favor the MSSM with flavor-violating squark mixings and encourage to perform further studies in this model.

scholarly journals Constraining top quark flavor violation and dipole moments through three and four top quark productions at the LHC

2018 ◽  
Vol 98 (9) ◽  
Author(s):  
Malihe Malekhosseini ◽  
Mehrdad Ghominejad ◽  
Hamzeh Khanpour ◽  
Mojtaba Mohammadi Najafabadi
Keyword(s):  
Top Quark ◽  
Dipole Moments ◽  
Flavor Violation ◽  
Quark Flavor

scholarly journals R-parity violation and quark flavor violation

1997 ◽  
Vol 55 (7) ◽  
pp. 4222-4239 ◽  
Author(s):  
B. de Carlos ◽  
P. L. White
Keyword(s):  
Parity Violation ◽  
Flavor Violation ◽  
Quark Flavor

scholarly journals Higgs Quark Flavor Violation: Simplified Models and Status of General Two-Higgs-Doublet Model

2020 ◽  
Vol 2020 (2) ◽  
Author(s):  
Juan Herrero-Garcia ◽  
Miguel Nebot ◽  
Filip Rajec ◽  
Martin White ◽  
Anthony G. Williams
Keyword(s):  
Higgs Doublet ◽  
Simplified Models ◽  
Flavor Violation ◽  
Quark Flavor ◽  
Doublet Model ◽  
Two Higgs Doublet Model
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