Testing B-violating signatures from Exotic Instantons in future colliders

Abstract

We discuss possible implications of Exotic Stringy instantons for Baryon-violating signatures in future colliders. In particular, we discuss high-energy quarks collisions and $\Lambda -\bar{\Lambda }$ transitions. In principle, $\Lambda -\bar{\Lambda }$ process can be probed by high-luminosity electron-positron colliders. However, we find that an extremely high luminosity is needed in order to provide a (somewhat) stringent bound compared to the current data on $NN\to \pi \pi ,KK$. On the other hand, (exotic) instanton-induced six quark interactions can be tested in near future high-energy colliders beyond LHC, at energies around $20-100\mathrm{TeV}$. Super proton-proton collider (SppC) is capable of such measurement given the proposed energy level of 50-90 TeV. Comparison with other channels is made. In particular, we show the compatibility of our model with neutron-antineutron and $NN\to \pi \pi ,KK$ bounds.

references updated, final version, to be published in Chin.Phys.C

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