Upper bound on the gluino mass in supersymmetric models with extra matters
We discuss the upper bound on the gluino mass in supersymmetric models with vector-like extra matters. In order to realize the observed Higgs mass of 125 GeV, the gluino mass is bounded from above in supersymmetric models. With the existence of the vector-like extra matters at around TeV, we show th...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2016-09-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269316304026 |
| _version_ | 1818134257985388544 |
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| author | Takeo Moroi Tsutomu T. Yanagida Norimi Yokozaki |
| author_facet | Takeo Moroi Tsutomu T. Yanagida Norimi Yokozaki |
| author_sort | Takeo Moroi |
| collection | DOAJ |
| description | We discuss the upper bound on the gluino mass in supersymmetric models with vector-like extra matters. In order to realize the observed Higgs mass of 125 GeV, the gluino mass is bounded from above in supersymmetric models. With the existence of the vector-like extra matters at around TeV, we show that such an upper bound on the gluino mass is significantly reduced compared to the case of minimal supersymmetric standard model. This is due to the fact that radiatively generated stop masses as well the stop trilinear coupling are enhanced in the presence of the vector-like multiplets. In a wide range of parameter space of the model with extra matters, particularly with sizable tanβ (which is the ratio of the vacuum expectation values of the two Higgs bosons), the gluino is required to be lighter than ∼3 TeV, which is likely to be within the reach of forthcoming LHC experiment. |
| first_indexed | 2024-12-11T09:05:45Z |
| format | Article |
| id | doaj.art-c29e0ffe813640c69ba5e525de197ba2 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 1873-2445 |
| language | English |
| last_indexed | 2024-12-11T09:05:45Z |
| publishDate | 2016-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-c29e0ffe813640c69ba5e525de197ba22022-12-22T01:13:39ZengElsevierPhysics Letters B0370-26931873-24452016-09-01760C68168810.1016/j.physletb.2016.07.061Upper bound on the gluino mass in supersymmetric models with extra mattersTakeo Moroi0Tsutomu T. Yanagida1Norimi Yokozaki2Department of Physics, University of Tokyo, Tokyo 113-0033, JapanKavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU), University of Tokyo, Kashiwa 277-8583, JapanDepartment of Physics, Tohoku University, Sendai 980-8578, JapanWe discuss the upper bound on the gluino mass in supersymmetric models with vector-like extra matters. In order to realize the observed Higgs mass of 125 GeV, the gluino mass is bounded from above in supersymmetric models. With the existence of the vector-like extra matters at around TeV, we show that such an upper bound on the gluino mass is significantly reduced compared to the case of minimal supersymmetric standard model. This is due to the fact that radiatively generated stop masses as well the stop trilinear coupling are enhanced in the presence of the vector-like multiplets. In a wide range of parameter space of the model with extra matters, particularly with sizable tanβ (which is the ratio of the vacuum expectation values of the two Higgs bosons), the gluino is required to be lighter than ∼3 TeV, which is likely to be within the reach of forthcoming LHC experiment.http://www.sciencedirect.com/science/article/pii/S0370269316304026 |
| spellingShingle | Takeo Moroi Tsutomu T. Yanagida Norimi Yokozaki Upper bound on the gluino mass in supersymmetric models with extra matters Physics Letters B |
| title | Upper bound on the gluino mass in supersymmetric models with extra matters |
| title_full | Upper bound on the gluino mass in supersymmetric models with extra matters |
| title_fullStr | Upper bound on the gluino mass in supersymmetric models with extra matters |
| title_full_unstemmed | Upper bound on the gluino mass in supersymmetric models with extra matters |
| title_short | Upper bound on the gluino mass in supersymmetric models with extra matters |
| title_sort | upper bound on the gluino mass in supersymmetric models with extra matters |
| url | http://www.sciencedirect.com/science/article/pii/S0370269316304026 |
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