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Squark and gaugino hadroproduction and decays in non-minimal flavour violating supersymmetry

Abstract : We present an extensive analysis of squark and gaugino hadroproduction and decays in non-minimal flavour violating supersymmetry. We employ the so-called super-CKM basis to define the possible misalignment of quark and squark rotations, and we use generalized (possibly complex) charges to define the mutual couplings of (s)quarks and gauge bosons/gauginos. The cross sections for all squark-(anti-)squark/gaugino pair and squark-gaugino associated production processes as well as their decay widths are then given in compact analytic form. For four different constrained supersymmetry breaking models with non-minimal flavour violation in the second/third generation squark sector only, we establish the parameter space regions allowed/favoured by low-energy, electroweak precision, and cosmological constraints and display the chirality and flavour decomposition of all up- and down-type squark mass eigenstates. Finally, we compute numerically the dependence of a representative sample of production cross sections at the LHC on the off-diagonal mass matrix elements in the experimentally allowed/favoured ranges.
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http://hal.in2p3.fr/in2p3-00142033
Contributor : Lpsc Bibliotheque <>
Submitted on : Tuesday, April 17, 2007 - 10:11:36 AM
Last modification on : Thursday, November 19, 2020 - 12:58:48 PM

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G. Bozzi, B. Fuks, B. Herrmann, M. Klasen. Squark and gaugino hadroproduction and decays in non-minimal flavour violating supersymmetry. Nuclear Physics B, Elsevier, 2007, 787, pp.1-54. ⟨10.1016/j.nuclphysb.2007.05.031⟩. ⟨in2p3-00142033⟩

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