TY  - JOUR
AU  - Bartl, A.
AU  - Eberl, H.
AU  - Herrmann, B.
AU  - Hidaka, K.
AU  - Majerotto, W.
AU  - Porod, W.
PY  - 2011
DA  - 2011//
TI  - Impact of squark generation mixing on the search for squarks decaying into fermions at LHC
T2  - Phys. Lett. B
JO  - Physics Letters B
SP  - 380
EP  - 388
VL  - 698
IS  - 5
PB  - Elsevier Science Bv
KW  - Supersymmetry
KW  - Squark
KW  - Flavour violation
KW  - LHC
AB  - We study the effect of squark generation mixing on squark production and decays at LHC in the Minimal Supersymmetric Standard Model (MSSM). We show that the effect can be very large despite the very strong constraints on quark-flavour violation (QFV) from experimental data on B mesons. We find that the two lightest up-type squarks (u) over bar (1.2) can have large branching ratios for the decays into c (chi) over bar (0)(1) and t (chi) over bar (0)(1) at the same time due to squark generation mixing, leading to QFV signals 'pp -> c (t) over bar (t (c) over bar) + missing-E-T + X' with a significant rate. The observation of this remarkable signature would provide a powerful test of supersymmetric QFV at LHC. This could have a significant impact on the search for squarks and the determination of the underlying MSSM parameters.
SN  - 0370-2693
UR  - http://arxiv.org/abs/arXiv:1007.5483
UR  - https://doi.org/10.1016/j.physletb.2011.01.020
DO  - 10.1016/j.physletb.2011.01.020
LA  - English
N1  - ISI:000290185500005
ID  - Bartl_etal2011
ER  -