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Model independent constraints on leptoquarks from b -> s l+ l- processes

N. Kosnik 1
1 Groupe Théorie
LAL - Laboratoire de l'Accélérateur Linéaire, J. Stefan Institute
Abstract : We list all scalar and vector leptoquark states have effect on the b -> s l+ l- effective Hamiltonian. There are altogether three scalar and four vector leptoquarks that are relevant. For contribution of each state we infer the correlations between effective operators and find that only two baryon number-violating vector leptoquarks give rise to scalar and pseudoscalar operators. We bound contributions of remaining states by imposing experimental constraints coming from Br(B -> K l+ l-), Br(B_s -> mu+ mu-), and the partial branching fraction of B -> X_s mu+ mu-.
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http://hal.in2p3.fr/in2p3-00709714
Contributor : Sabine Starita <>
Submitted on : Tuesday, June 19, 2012 - 11:56:32 AM
Last modification on : Wednesday, September 16, 2020 - 5:42:12 PM

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N. Kosnik. Model independent constraints on leptoquarks from b -> s l+ l- processes. Physical Review D, American Physical Society, 2012, 86, pp.055004. ⟨10.1103/PhysRevD.86.055004⟩. ⟨in2p3-00709714⟩

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