Likelihood analysis of supersymmetric SU(5) GUTs

E. Bagnaschi; J. C. Costa; K. Sakurai; M. Borsato; O. Buchmueller; R. Cavanaugh; V. Chobanova; M. Citron; A. De Roeck; M. J. Dolan; J. R. Ellis; Henning U Flaecher; S. Heinemeyer; G. Isidori; M. Lucio; D. Martínez Santos; K. A. Olive; A. Richards; K. J. de Vries; G. Weiglein

doi:10.1140/epjc/s10052-017-4639-6

Likelihood analysis of supersymmetric SU(5) GUTs

E. Bagnaschi^*, J. C. Costa, K. Sakurai, M. Borsato, O. Buchmueller, R. Cavanaugh, V. Chobanova, M. Citron, A. De Roeck, M. J. Dolan, J. R. Ellis, Henning U Flaecher, S. Heinemeyer, G. Isidori, M. Lucio, D. Martínez Santos, K. A. Olive, A. Richards, K. J. de Vries, G. Weiglein

^*Corresponding author for this work

School of Physics

Research output: Contribution to journal › Article (Academic Journal) › peer-review

24 Citations (Scopus)

342 Downloads (Pure)

Abstract

We perform a likelihood analysis of the constraints from accelerator experiments and astrophysical observations on supersymmetric (SUSY) models with SU(5) boundary conditions on soft SUSY-breaking parameters at the GUT scale. The parameter space of the models studied has seven parameters: a universal gaugino mass m_{1 / 2}, distinct masses for the scalar partners of matter fermions in five- and ten-dimensional representations of SU(5), m₅ and m₁₀, and for the 5 and 5¯ Higgs representations mHu and mHd, a universal trilinear soft SUSY-breaking parameter A₀, and the ratio of Higgs vevs tan β. In addition to previous constraints from direct sparticle searches, low-energy and flavour observables, we incorporate constraints based on preliminary results from 13 TeV LHC searches for jets + [InlineEquation not available: see fulltext.] events and long-lived particles, as well as the latest PandaX-II and LUX searches for direct Dark Matter detection. In addition to previously identified mechanisms for bringing the supersymmetric relic density into the range allowed by cosmology, we identify a novel u~R/c~R-χ~10 coannihilation mechanism that appears in the supersymmetric SU(5) GUT model and discuss the role of ν~ _τ coannihilation. We find complementarity between the prospects for direct Dark Matter detection and SUSY searches at the LHC.

Original language	English
Article number	104
Number of pages	29
Journal	European Physical Journal C: Particles and Fields
Volume	77
Issue number	2
Early online date	16 Feb 2017
DOIs	https://doi.org/10.1140/epjc/s10052-017-4639-6
Publication status	Published - Feb 2017

Access to Document

10.1140/epjc/s10052-017-4639-6

Full-text PDF (final published version)
This is the final published version of the article (version of record). It first appeared online via Springer at https://doi.org/10.1140/epjc/s10052-017-4639-6 . Please refer to any applicable terms of use of the publisher.
Final published version, 5.08 MBLicence: CC BY

Handle.net

Persistent link

Consolidated Grant 2012-16
Newbold, D. M. (Principal Investigator) & Rademacker, J. H. (Researcher)
1/10/12 → 1/10/16
Project: Research

Cite this

Bagnaschi, E., Costa, J. C., Sakurai, K., Borsato, M., Buchmueller, O., Cavanaugh, R., Chobanova, V., Citron, M., De Roeck, A., Dolan, M. J., Ellis, J. R., Flaecher, H. U., Heinemeyer, S., Isidori, G., Lucio, M., Martínez Santos, D., Olive, K. A., Richards, A., de Vries, K. J., & Weiglein, G. (2017). Likelihood analysis of supersymmetric SU(5) GUTs. European Physical Journal C: Particles and Fields, 77(2), Article 104. https://doi.org/10.1140/epjc/s10052-017-4639-6

@article{2cad91cc23044d50bc85b4b98a64e48b,

title = "Likelihood analysis of supersymmetric SU(5) GUTs",

abstract = "We perform a likelihood analysis of the constraints from accelerator experiments and astrophysical observations on supersymmetric (SUSY) models with SU(5) boundary conditions on soft SUSY-breaking parameters at the GUT scale. The parameter space of the models studied has seven parameters: a universal gaugino mass m1 / 2, distinct masses for the scalar partners of matter fermions in five- and ten-dimensional representations of SU(5), m5 and m10, and for the 5 and 5¯ Higgs representations mHu and mHd, a universal trilinear soft SUSY-breaking parameter A0, and the ratio of Higgs vevs tan β. In addition to previous constraints from direct sparticle searches, low-energy and flavour observables, we incorporate constraints based on preliminary results from 13 TeV LHC searches for jets + [InlineEquation not available: see fulltext.] events and long-lived particles, as well as the latest PandaX-II and LUX searches for direct Dark Matter detection. In addition to previously identified mechanisms for bringing the supersymmetric relic density into the range allowed by cosmology, we identify a novel u~R/c~R-χ~10 coannihilation mechanism that appears in the supersymmetric SU(5) GUT model and discuss the role of ν~ τ coannihilation. We find complementarity between the prospects for direct Dark Matter detection and SUSY searches at the LHC.",

author = "E. Bagnaschi and Costa, {J. C.} and K. Sakurai and M. Borsato and O. Buchmueller and R. Cavanaugh and V. Chobanova and M. Citron and {De Roeck}, A. and Dolan, {M. J.} and Ellis, {J. R.} and Flaecher, {Henning U} and S. Heinemeyer and G. Isidori and M. Lucio and {Mart{\'i}nez Santos}, D. and Olive, {K. A.} and A. Richards and {de Vries}, {K. J.} and G. Weiglein",

year = "2017",

month = feb,

doi = "10.1140/epjc/s10052-017-4639-6",

language = "English",

volume = "77",

journal = "European Physical Journal C: Particles and Fields",

issn = "1434-6044",

publisher = "Springer Berlin Heidelberg",

number = "2",

}

Bagnaschi, E, Costa, JC, Sakurai, K, Borsato, M, Buchmueller, O, Cavanaugh, R, Chobanova, V, Citron, M, De Roeck, A, Dolan, MJ, Ellis, JR, Flaecher, HU, Heinemeyer, S, Isidori, G, Lucio, M, Martínez Santos, D, Olive, KA, Richards, A, de Vries, KJ & Weiglein, G 2017, 'Likelihood analysis of supersymmetric SU(5) GUTs', European Physical Journal C: Particles and Fields, vol. 77, no. 2, 104. https://doi.org/10.1140/epjc/s10052-017-4639-6

TY - JOUR

T1 - Likelihood analysis of supersymmetric SU(5) GUTs

AU - Bagnaschi, E.

AU - Costa, J. C.

AU - Sakurai, K.

AU - Borsato, M.

AU - Buchmueller, O.

AU - Cavanaugh, R.

AU - Chobanova, V.

AU - Citron, M.

AU - De Roeck, A.

AU - Dolan, M. J.

AU - Ellis, J. R.

AU - Flaecher, Henning U

AU - Heinemeyer, S.

AU - Isidori, G.

AU - Lucio, M.

AU - Martínez Santos, D.

AU - Olive, K. A.

AU - Richards, A.

AU - de Vries, K. J.

AU - Weiglein, G.

PY - 2017/2

Y1 - 2017/2

N2 - We perform a likelihood analysis of the constraints from accelerator experiments and astrophysical observations on supersymmetric (SUSY) models with SU(5) boundary conditions on soft SUSY-breaking parameters at the GUT scale. The parameter space of the models studied has seven parameters: a universal gaugino mass m1 / 2, distinct masses for the scalar partners of matter fermions in five- and ten-dimensional representations of SU(5), m5 and m10, and for the 5 and 5¯ Higgs representations mHu and mHd, a universal trilinear soft SUSY-breaking parameter A0, and the ratio of Higgs vevs tan β. In addition to previous constraints from direct sparticle searches, low-energy and flavour observables, we incorporate constraints based on preliminary results from 13 TeV LHC searches for jets + [InlineEquation not available: see fulltext.] events and long-lived particles, as well as the latest PandaX-II and LUX searches for direct Dark Matter detection. In addition to previously identified mechanisms for bringing the supersymmetric relic density into the range allowed by cosmology, we identify a novel u~R/c~R-χ~10 coannihilation mechanism that appears in the supersymmetric SU(5) GUT model and discuss the role of ν~ τ coannihilation. We find complementarity between the prospects for direct Dark Matter detection and SUSY searches at the LHC.

AB - We perform a likelihood analysis of the constraints from accelerator experiments and astrophysical observations on supersymmetric (SUSY) models with SU(5) boundary conditions on soft SUSY-breaking parameters at the GUT scale. The parameter space of the models studied has seven parameters: a universal gaugino mass m1 / 2, distinct masses for the scalar partners of matter fermions in five- and ten-dimensional representations of SU(5), m5 and m10, and for the 5 and 5¯ Higgs representations mHu and mHd, a universal trilinear soft SUSY-breaking parameter A0, and the ratio of Higgs vevs tan β. In addition to previous constraints from direct sparticle searches, low-energy and flavour observables, we incorporate constraints based on preliminary results from 13 TeV LHC searches for jets + [InlineEquation not available: see fulltext.] events and long-lived particles, as well as the latest PandaX-II and LUX searches for direct Dark Matter detection. In addition to previously identified mechanisms for bringing the supersymmetric relic density into the range allowed by cosmology, we identify a novel u~R/c~R-χ~10 coannihilation mechanism that appears in the supersymmetric SU(5) GUT model and discuss the role of ν~ τ coannihilation. We find complementarity between the prospects for direct Dark Matter detection and SUSY searches at the LHC.

U2 - 10.1140/epjc/s10052-017-4639-6

DO - 10.1140/epjc/s10052-017-4639-6

M3 - Article (Academic Journal)

C2 - 28260982

AN - SCOPUS:85013236829

SN - 1434-6044

VL - 77

JO - European Physical Journal C: Particles and Fields

JF - European Physical Journal C: Particles and Fields

IS - 2

M1 - 104

ER -

Likelihood analysis of supersymmetric SU(5) GUTs

Abstract

Access to Document

Handle.net

Fingerprint

Projects

Consolidated Grant 2012-16

Cite this