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Title: Constraints on supersymmetric dark matter for heavy scalar superpartners

Authors:
; ; ; ;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1358529
Grant/Contract Number:
FG02-13ER41958; SC0009924
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 95; Journal Issue: 9; Related Information: CHORUS Timestamp: 2017-05-24 22:10:31; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English

Citation Formats

Huang, Peisi, Roglans, Roger A., Spiegel, Daniel D., Sun, Yitian, and Wagner, Carlos E. M. Constraints on supersymmetric dark matter for heavy scalar superpartners. United States: N. p., 2017. Web. doi:10.1103/PhysRevD.95.095021.
Huang, Peisi, Roglans, Roger A., Spiegel, Daniel D., Sun, Yitian, & Wagner, Carlos E. M. Constraints on supersymmetric dark matter for heavy scalar superpartners. United States. doi:10.1103/PhysRevD.95.095021.
Huang, Peisi, Roglans, Roger A., Spiegel, Daniel D., Sun, Yitian, and Wagner, Carlos E. M. Wed . "Constraints on supersymmetric dark matter for heavy scalar superpartners". United States. doi:10.1103/PhysRevD.95.095021.
@article{osti_1358529,
title = {Constraints on supersymmetric dark matter for heavy scalar superpartners},
author = {Huang, Peisi and Roglans, Roger A. and Spiegel, Daniel D. and Sun, Yitian and Wagner, Carlos E. M.},
abstractNote = {},
doi = {10.1103/PhysRevD.95.095021},
journal = {Physical Review D},
number = 9,
volume = 95,
place = {United States},
year = {Wed May 24 00:00:00 EDT 2017},
month = {Wed May 24 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1103/PhysRevD.95.095021

Citation Metrics:
Cited by: 5works
Citation information provided by
Web of Science

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  • A nonuniversal scalar mass supergravity type of model is explored where the first two generations of scalars and the third generation of sleptons may be very massive. The lighter or vanishing third generation of squarks as well as Higgs scalars at the unification scale cause the radiative electroweak symmetry breaking constraint to be less prohibitive. Thus, both flavor-changing neutral-current/CP-violation problems as well as the naturalness problem are within control. We identify a large slepton mass effect in the renormalization group equations of m{sub H{sub D}}{sup 2} (for the down type of Higgs) that may turn the latter negative at themore » electroweak scale even for a small tan{beta}. A hyperbolic branch/focus pointlike effect is found for m{sub A}{sup 2} that may result in very light Higgs spectra. The lightest stable particle is dominantly a b-ino that pair annihilates via Higgs exchange, giving rise to a Wilkinson Microwave Anisotropy Probe satisfied relic density region for all tan{beta}. Detection prospects of such lightest stable particles in the upcoming dark matter experiments both of direct and indirect types (photon flux) are interesting. The Higgs bosons and the third generation of squarks are light in this scenario and these may be easily probed besides charginos and neutralinos in the early runs of the Large Hadron Collider.« less
  • We describe in detail our calculation of the full supersymmetric QCD corrections to neutralino annihilation into heavy quarks and extend our numerical analysis of the resulting dark matter relic density to scenarios without scalar or gaugino mass unification. In these scenarios, the final state is often composed of top quarks and the annihilation proceeds through Z{sup 0}-boson or scalar top-quark exchanges. The impact of the corrections is again shown to be sizable, so that they must be taken into account systematically in global analyses of the supersymmetry parameter space.
  • We perform a multilepton channel analysis in the context of the Large Hadron Collider (LHC) for Wilkinson Microwave Anisotropy Probe compatible points in a model with nonuniversal scalar masses, which admits a Higgs funnel region of supersymmetry dark matter even for a small tan{beta}. In addition to two- and three-lepton final states, four-lepton events, too, are shown to be useful for this purpose. We also compare the collider signatures in similar channels for Wilkinson Microwave Anisotropy Probe compatible points in the minimal supergravity (mSUGRA) framework with similar gluino masses. Some definite features of such nonuniversal scenario emerge from the analysis.
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