Flavor violating bosonic squark decays at LHC

Alfred Bartl; E. Ginina; B. Herrmann; K. Hidaka; W. Majerotto; W. Porod

doi:10.1142/S0217751X14500353

Flavor violating bosonic squark decays at LHC

Alfred Bartl (Corresponding author)
, E. Ginina
, B. Herrmann
, K. Hidaka
, W. Majerotto
, W. Porod

Particle Physics

Publications: Contribution to journal › Article › Peer Reviewed

Abstract

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. - mixing. We focus on QFV effects in bosonic squark decays, in particular on the decay into the lightest Higgs boson h(0), -> h(0), where 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 - and - 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 pp -> -> t + h(0) + 3 jets + is not an element of(T) + X and pp -> -> tt (or (tt) over bar) + h(0) + 2 jets+ is not an element of(T) + X. The QFV bosonic squark decays can have an influence on the squark and gluino searches at LHC.

Original language	English
Article number	1450035
Number of pages	24
Journal	International Journal of Modern Physics A
Volume	29
Issue number	7
DOIs	https://doi.org/10.1142/S0217751X14500353
Publication status	Published - 20 Mar 2014

Funding

This work is supported by the "Fonds zur Forderung der wissenschaftlichen Forschung (FWF)" of Austria, project No. I 297-N16 and project No. P26338-N27, by the DFG, project No. PO-1337/2-1 and by DAAD, project PROCOPE 54366394.

Austrian Fields of Science 2012

103034 Particle physics

Keywords

Phenomenology of the general MSSM
nonminimal flavor violation
collider physics
MODEL HIGGS-BOSON
LARGE TAN-BETA
MISSING TRANSVERSE ENERGY
PROTON-PROTON COLLISIONS
STANDARD MODEL
ROOT-S=7 TEV
ATLAS DETECTOR
PAIR PRODUCTION
PP COLLISIONS
FINAL-STATES

Access to Document

10.1142/S0217751X14500353

http://arxiv.org/abs/1212.4688

Cite this

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title = "Flavor violating bosonic squark decays at LHC",

abstract = "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. - mixing. We focus on QFV effects in bosonic squark decays, in particular on the decay into the lightest Higgs boson h(0), -> h(0), where 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 - and - 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 pp -> -> t + h(0) + 3 jets + is not an element of(T) + X and pp -> -> tt (or (tt) over bar) + h(0) + 2 jets+ is not an element of(T) + X. The QFV bosonic squark decays can have an influence on the squark and gluino searches at LHC.",

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author = "Alfred Bartl and E. Ginina and B. Herrmann and K. Hidaka and W. Majerotto and W. Porod",

note = "Funding Information: This work is supported by the “Fonds zur F{\"o}rderung der wissenschaftlichen Forschung (FWF)” of Austria, project No. I 297-N16 and project No. P26338-N27, by the DFG, project No. PO-1337/2-1 and by DAAD, project PROCOPE 54366394.",

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doi = "10.1142/S0217751X14500353",

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AU - Bartl, Alfred

AU - Ginina, E.

AU - Herrmann, B.

AU - Hidaka, K.

AU - Majerotto, W.

AU - Porod, W.

N1 - Funding Information: This work is supported by the “Fonds zur Förderung der wissenschaftlichen Forschung (FWF)” of Austria, project No. I 297-N16 and project No. P26338-N27, by the DFG, project No. PO-1337/2-1 and by DAAD, project PROCOPE 54366394.

PY - 2014/3/20

Y1 - 2014/3/20

N2 - 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. - mixing. We focus on QFV effects in bosonic squark decays, in particular on the decay into the lightest Higgs boson h(0), -> h(0), where 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 - and - 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 pp -> -> t + h(0) + 3 jets + is not an element of(T) + X and pp -> -> tt (or (tt) over bar) + h(0) + 2 jets+ is not an element of(T) + X. The QFV bosonic squark decays can have an influence on the squark and gluino searches at LHC.

AB - 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. - mixing. We focus on QFV effects in bosonic squark decays, in particular on the decay into the lightest Higgs boson h(0), -> h(0), where 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 - and - 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 pp -> -> t + h(0) + 3 jets + is not an element of(T) + X and pp -> -> tt (or (tt) over bar) + h(0) + 2 jets+ is not an element of(T) + X. The QFV bosonic squark decays can have an influence on the squark and gluino searches at LHC.

KW - Phenomenology of the general MSSM

KW - nonminimal flavor violation

KW - collider physics

KW - MODEL HIGGS-BOSON

KW - LARGE TAN-BETA

KW - MISSING TRANSVERSE ENERGY

KW - PROTON-PROTON COLLISIONS

KW - STANDARD MODEL

KW - ROOT-S=7 TEV

KW - ATLAS DETECTOR

KW - PAIR PRODUCTION

KW - PP COLLISIONS

KW - FINAL-STATES

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DO - 10.1142/S0217751X14500353

M3 - Article

SN - 0217-751X

VL - 29

JO - International Journal of Modern Physics A

JF - International Journal of Modern Physics A

IS - 7

M1 - 1450035

ER -

Flavor violating bosonic squark decays at LHC

Abstract

Funding

Austrian Fields of Science 2012

Keywords

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