Related Experiment Video
Updated: Aug 6, 2026

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Upper bounds on supersymmetric contributions to b-->s transitions from Bs-Bs mixing
1Dipartimento di Fisica, Università di Roma Tre and INFN, Sezione di Roma III, Via della Vasca Navale 84, I-00146 Roma, Italy.
Abstract:
We study the constraints on supersymmetric contributions to b-->s transitions from the recent allowed range and measurement of B(s)-B(s) mixing obtained by the D0 and Collider Detector at Fermilab collaborations at the Tevatron. We compute the upper bounds on the relevant off-diagonal squark mass terms and compare them with the bounds coming from delta F= 1 decays. We find that the constraints on chirality-flipping mass insertions are unaffected. Conversely, the measurement of B(s)-B(s) mixing is effective in constraining chirality-conserving mass insertions, and it has striking effects in the case in which left- and right-handed insertions have similar size. Finally, we discuss the phase of the B(s)-B(s) mixing amplitude in the presence of supersymmetric contributions.
Related Concept Videos
Molecular Orbital Theory II
Hybridization of Atomic Orbitals I
NMR Spectroscopy of Benzene Derivatives
¹H NMR: Complex Splitting
Splitting diagrams or splitting tree diagrams are routinely used to depict such complex couplings. While drawing splitting diagrams, the splitting with the larger coupling constant is usually applied first.
UV–Vis Spectroscopy: Molecular Electronic Transitions
Spin–Spin Coupling Constant: Overview
Qualitatively, any spin plus-half nucleus polarizes the spins of its electrons to the minus-half state. Consequently, the paired electron in the hydrogen–carbon bond must have a...

