A Swarm of Bs

Abstract

New physics signals containing five or more b-tagged jets, but without MET or leptons, could realistically be sitting within the current 8 TeV LHC data set without receiving meaningful constraints from any of the existing LHC searches at either ATLAS or CMS. This work provides several examples of simple, motivated models that yield final states containing many b-jets. To study the potential for uncovering new physics in these high b-jet multiplicity channels, this paper focuses on a natural supersymmetry scenario where each of the pair-produced stops decays to an on-shell chargino, which subsequently decays via an MFV-motivated, R-parity violating coupling. This gives rise to an eight-jet final state containing six b-quarks. Although no public measurements exist, estimates indicate that the standard model backgrounds in high b-jet multiplicity channels should be very small. To circumvent the background uncertainty, an asymmetric method is presented that utilizes two different techniques to conservatively exclude or to discover new physics in high b-jet multiplicity final states.

14 pages, 4 figures, 2 tables, journal version

References in corpus (11)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Echoes of a Hidden Valley at Hadron Colliders
• Dijet Searches for Supersymmetry at the LHC
• Minimal Flavor Violation, Seesaw, and R-parity
• Kinematical variables towards new dynamics at the LHC
• Searches for light- and heavy-flavour three-jet resonances in pp collisions at sqrt(s) = 8 TeV
• Next to Minimal Flavor Violation
• Search for three-jet resonances in pp collisions at sqrt(s) = 7 TeV
• On the Phenomenology of Hidden Valleys with Heavy Flavor
• LHC searches examined via the RPV MSSM

Cited by in corpus (8)

• Pseudoscalar Portal Dark Matter and New Signatures of Vector-like Fermions
• Search for phenomena beyond the Standard Model in events with large $b$-jet multiplicity using the ATLAS detector at the LHC
• New signatures and limits on R-parity violation from resonant squark production
• Stashing the stops in multijet events at the LHC
• Flavors of Supersymmetry Beyond Vanilla
• Solving Combinatorial Problems at Particle Colliders Using Machine Learning
• The Light Gluino Gap
• Exotic Decays of Heavy B quarks