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Probing the Goldstone equivalence theorem in Heavy Weak Doublet Decays

Dutta, Bhaskar and Gao, Yu and Sanford, David and Walker, Joel W. (2016) Probing the Goldstone equivalence theorem in Heavy Weak Doublet Decays. Physical Review D, 93 (5). Art. No. 055020. ISSN 2470-0010. doi:10.1103/PhysRevD.93.055020.

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This paper investigates the decays from heavy Higgsino-like weak doublets into Z, h bosons and missing particles. When pair-produced at the LHC, the subsequent Z, h→ℓℓ, bb¯ decays in the doublet decay cascade can yield 4ℓ, 2ℓ2b and 4b+E_T+j(s) final states. Mutual observation of any two of these channels would provide information on the associated doublets’ decay branching fractions into a Z or h, thereby probing the Goldstone equivalence relation, shedding additional light on the Higgs sector of beyond the Standard Model theories and facilitating the discrimination of various contending models, in turn. We compare the Z/h decay ratio expected in the minimal supersymmetric model, the next-to-minimal supersymmetric model (NMSSM)and a minimal singlet-doublet dark matter model. Additionally, we conduct a full Monte Carlo analysis of the prospects for detecting the targeted final states during 14 TeV running of the LHC in the context of a representative NMSSM benchmark model.

Item Type:Article
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URLURL TypeDescription Paper
Gao, Yu0000-0003-0007-2197
Additional Information:© 2016 American Physical Society. (Received 25 September 2015; published 15 March 2016) We would like to thank Teruki Kamon, Nikolay Kolev and Keith Ulmer for helpful discussions. B. D. acknowledges support from U.S. Deparment of Energy (DOE) Grant No. DE-FG02-13ER42020. Y. G. acknowledges support from the Mitchell Institute for Fundamental Physics and Astronomy. D. S. acknowledges support from U.S. DOE Grant No. DEFG0292ER40701 and the Gordon and Betty Moore Foundation through Grant No. 776 to the Caltech Moore Center for Theoretical Cosmology and Physics. J. W. W. acknowledges support from the Sam Houston State University (SHSU) Enhancement Research Grant program, National Science Foundation Grant No. PHY-1521105, the SHSU Department of Physics, and the Mitchell Institute for Fundamental Physics and Astronomy.
Group:Walter Burke Institute for Theoretical Physics, Moore Center for Theoretical Cosmology and Physics
Funding AgencyGrant Number
Department of Energy (DOE)DE-FG02-13ER42020
Texas A&M University Mitchell Institute for Fundamental Physics and AstronomyUNSPECIFIED
Department of Energy (DOE)DE-FG02-92ER40701
Gordon and Betty Moore Foundation776
Caltech Moore Center for Theoretical Cosmology and PhysicsUNSPECIFIED
Sam Houston State University (SHSU)UNSPECIFIED
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Issue or Number:5
Record Number:CaltechAUTHORS:20151022-120109719
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Official Citation:Probing the Goldstone equivalence theorem in heavy weak doublet decays Bhaskar Dutta, Yu Gao, David Sanford, and Joel W. Walker Phys. Rev. D 93, 055020
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:61421
Deposited By: Joy Painter
Deposited On:22 Oct 2015 20:24
Last Modified:10 Nov 2021 22:48

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