Mesino - Antimesino Oscillations
Uri Sarid, Scott Thomas

TL;DR
This paper explores the phenomenology of mesino-antimesino oscillations in supersymmetric models with light squarks, highlighting their potential as signals for supersymmetry and flavor violation at colliders.
Contribution
It introduces the concept of mesino-antimesino oscillations in low-scale supersymmetry, proposing observable collider signatures and a new probe for flavor violation.
Findings
Mesino-antimesino oscillations can occur at observable rates.
Such oscillations can produce distinctive collider signatures like same-sign top events.
The study suggests a new discovery channel for supersymmetry through these oscillations.
Abstract
The phenomenological implications of supersymmetric theories with low scale supersymmetry breaking and a squark as the lightest standard model superpartner are investigated. Such squarks hadronize with light quarks, forming sbaryons and mesinos before decaying. Production of these supersymmetric bound states at a high energy collider can lead to displaced jets with large negative impact parameter. Neutral mesino - antimesino oscillations are not forbidden by any symmetry and can occur at observable rates with distinctive signatures. Stop mesino - antimesino oscillations would give a sensitive probe of up-type sflavor violation in the squark sector, and can provide a discovery channel for supersymmetry through events with a same-sign top-top topology.
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