Abstract
We consider baryon-number-violating nucleon and dinucleon decays to leptonic final states in the context of a left-right symmetric (LRS) model with large extra dimensions. Specifically, we study (a) nucleon to trilepton decays with varDelta B=-1 and varDelta L=-3, and (b) dinucleon to dilepton decays with varDelta B=-2 and varDelta L=-2. In the LRS model, B-L is gauged and is spontaneously broken by a Higgs vacuum expectation value v_R, which characterizes the scale at which processes violating B-L occur. We show that together with the lower bound on v_R from experimental limits on n-{bar{n}} oscillations, constraints from searches for other nucleon decay modes imply sufficient suppression of these nucleon to trilepton and dinucleon to dilepton decay modes in this model to agree with experimental bounds.
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