TY - JOUR
T1 - Search for bottom squarks in the baryon-number violating MSSM
AU - Bardhan, Debjyoti
AU - Chakraborty, Amit
AU - Choudhury, Debajyoti
AU - Ghosh, Dilip Kumar
AU - Maity, Manas
N1 - Funding Information:
A. C. and D. B. wish to thank Gouranga Kole, Soureek Mitra, Shankha Banerjee, and Seema Sharma for helping us resolve various ROOT and TMVA-related issues. A. C. and D. B. would also like to thank Sabyasachi Chakraborty for many fruitful discussions. D. C. acknowledges partial support from the European Union’s Horizon 2020 research and innovation program under Marie Sklodowska-Curie Grant No. 674896. The computations reported here were performed on the computational resources of the Department of Theoretical Physics, TIFR. D. B. thanks the Department of Theoretical Physics, IACS for hospitality during the completion of this work.
Publisher Copyright:
© 2017 American Physical Society.
PY - 2017/8/1
Y1 - 2017/8/1
N2 - We consider a scenario of a minimal supersymmetric standard model with R-parity violation, where the lightest supersymmetric particle is the lighter bottom squark (b-1). We study the production of a bottom squark pair at the LHC and their subsequent decays through the baryon number violating operators leading to a top pair with two light quarks. Looking for both semileptonic and fully hadronic (no leptons) final states, we perform cut-based as well as multivariate analyses (MVA) to estimate the signal significance at the 13 TeV run of the LHC. We find that a cut-based analysis can probe bottom squark mass up to ∼750 GeV, which may be extended up to ∼850 GeV using MVA with 300 fb-1 integrated luminosity. The fully hadronic final state, however, is not as promising.
AB - We consider a scenario of a minimal supersymmetric standard model with R-parity violation, where the lightest supersymmetric particle is the lighter bottom squark (b-1). We study the production of a bottom squark pair at the LHC and their subsequent decays through the baryon number violating operators leading to a top pair with two light quarks. Looking for both semileptonic and fully hadronic (no leptons) final states, we perform cut-based as well as multivariate analyses (MVA) to estimate the signal significance at the 13 TeV run of the LHC. We find that a cut-based analysis can probe bottom squark mass up to ∼750 GeV, which may be extended up to ∼850 GeV using MVA with 300 fb-1 integrated luminosity. The fully hadronic final state, however, is not as promising.
UR - http://www.scopus.com/inward/record.url?scp=85029170667&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.96.035024
DO - 10.1103/PhysRevD.96.035024
M3 - Article
AN - SCOPUS:85029170667
VL - 96
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
SN - 1550-7998
IS - 3
M1 - 035024
ER -