Top-squark in natural SUSY under current LHC run-2 data
- 1. University of Tokyo, Kavli IPMU (WPI), UTIAS, Kashiwa (Japan)
- 2. Chinese Academy of Sciences, Computer Network Information Center, Beijing (China)
- 3. The University of Sydney, ARC Centre of Excellence for Particle Physics at the Terascale, School of Physics, Sydney, NSW (Australia)
- 4. Nanjing Normal University, Department of Physics and Institute of Theoretical Physics, Nanjing, Jiangsu (China)
- 5. Chinese Academy of Sciences, Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Beijing (China)
- 6. Institute for Basic Science (IBS), Center for Theoretical Physics and Universe, Taejon (Korea, Republic of)
Description
We utilize the recent LHC-13 TeV data to study the lower mass bound on the top-squark (stop) in natural supersymmetry. We recast the LHC sparticle inclusive search of (≥1)jets + ET with αT variable, the direct stop pair search (1-lepton channel and all-hadronic channel) and the monojet analyses. We find that these searches are complementary depending on stop and higgsino masses: for a heavy stop the all-hadronic stop pair search provides the strongest bound, for an intermediate stop the inclusive SUSY analysis with αT variable is most efficient, while for a compressed stop-higgsino scenario the monojet search plays the key role. Finally, the lower mass bound on a stop is: (1) 320 GeV for compressed stop-higgsino scenario (mass splitting less than 20 GeV); (2) 765 (860) GeV for higgsinos lighter than 300 (100) GeV. (orig.)
Availability note (English)
Available from: http://dx.doi.org/10.1140/epjc/s10052-017-4662-7Additional details
Identifiers
Publishing Information
- Journal Title
- European Physical Journal. C, Particles and Fields (Online)
- Journal Volume
- 77
- Journal Issue
- 2
- Journal Page Range
- p. 1-6
- ISSN
- 1434-6052
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 48037974
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- HADRONS; HIGGSINOS; INCLUSIVE INTERACTIONS; JET MODEL; MASS FORMULAE; MULTIPLE PRODUCTION; PROTON-PROTON INTERACTIONS; REST MASS; STANDARD MODEL; SUPERSYMMETRY; TEV RANGE 10-100; THEORETICAL DATA; TOP PARTICLES; TRANSVERSE ENERGY
- Descriptors DEC
- BARYON-BARYON INTERACTIONS; DATA; ELEMENTARY PARTICLES; ENERGY; ENERGY RANGE; FIELD THEORIES; GRAND UNIFIED THEORY; HADRON-HADRON INTERACTIONS; INFORMATION; INTERACTIONS; KINETIC ENERGY; MASS; MATHEMATICAL MODELS; NUCLEON-NUCLEON INTERACTIONS; NUMERICAL DATA; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PRODUCTION; POSTULATED PARTICLES; PROTON-NUCLEON INTERACTIONS; QUANTUM FIELD THEORY; SPARTICLES; SYMMETRY; TEV RANGE; UNIFIED GAUGE MODELS