skip to main content

DOE PAGESDOE PAGES

Title: Likelihood analysis of supersymmetric SU(5) GUTs

Here, 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 7 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), $$m_5$$ and $$m_{10}$$, and for the $$\mathbf{5}$$ and $$\mathbf{\bar 5}$$ Higgs representations $$m_{H_u}$$ and $$m_{H_d}$$, a universal trilinear soft SUSY-breaking parameter $$A_0$$, and the ratio of Higgs vevs $$\tan \beta$$. 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 + MET 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 $${\tilde u_R}/{\tilde c_R} - \tilde{\chi}^0_1$$ coannihilation mechanism that appears in the supersymmetric SU(5) GUT model and discuss the role of $${\tilde \nu_\tau}$$ coannihilation. We find complementarity between the prospects for direct Dark Matter detection and SUSY searches at the LHC.
Authors:
ORCiD logo [1] ;  [2] ;  [3] ;  [4] ;  [2] ;  [5] ;  [4] ;  [2] ;  [6] ;  [7] ;  [8] ;  [9] ;  [10] ;  [11] ;  [4] ;  [4] ;  [12] ;  [2] ;  [2] ;  [1]
  1. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  2. Imperial College, London (United Kingdom)
  3. Univ. of Durham, Durham (United Kingdom); Univ. of Warsaw, Warsaw (Poland)
  4. Univ. de Santiago de Compostela, Santiago de Compostela (Spain)
  5. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Univ. of Illinois, Chicago, IL (United States)
  6. European Organization for Nuclear Research (CERN), Geneva (Switzerland); Antwerp Univ., Wilrijk (Belgium)
  7. Univ. of Melbourne (Australia)
  8. King's College London, London (United Kingdom); European Organization for Nuclear Research (CERN), Geneva (Switzerland)
  9. Univ. of Bristol, Bristol (United Kingdom)
  10. Campus of International Excellence UAM+CSIC, Madrid (Spain); Instituto de Fisica Teorica UAM-CSIC, Madrid (Spain); Instituto de Fisica de Cantabria (CSIC-UC), Santander (Spain)
  11. Univ. Zurich, Zurich (Switzerland)
  12. Univ. of Minnesota, Minneapolis, MN (United States)
Publication Date:
Report Number(s):
CERN-PH-TH-2016-217; KCL-PH-TH-2016-57; CERN-TH-2016-217; DESY-16-156; IIFT-UAM-CSIC-16-105; FTPI-MINN-16-29; UMN-TH-3609-16; IPPP-16-97; FERMILAB-PUB-16-453-CMS; arXiv:1610.10084
Journal ID: ISSN 1434-6044; 1495211; TRN: US1700709
Grant/Contract Number:
AC02-07CH11359; sc0011842
Type:
Published Article
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 77; Journal Issue: 2; Journal ID: ISSN 1434-6044
Publisher:
Springer
Research Org:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1344018
Alternate Identifier(s):
OSTI ID: 1343970

Bagnaschi, Emanuele, Costa, J. C., Sakurai, K., Borsato, M., Buchmueller, O., Cavanaugh, R., Chobanova, V., Citron, M., De Roeck, A., Dolan, M. J., Ellis, J. R., Flacher, H., Heinemeyer, S., Isidori, G., Lucio, M., Martinez Santos, D., Olive, K. A., Richards, A., de Vries, K. J., and Weiglein, G.. Likelihood analysis of supersymmetric SU(5) GUTs. United States: N. p., Web. doi:10.1140/epjc/s10052-017-4639-6.
Bagnaschi, Emanuele, Costa, J. C., Sakurai, K., Borsato, M., Buchmueller, O., Cavanaugh, R., Chobanova, V., Citron, M., De Roeck, A., Dolan, M. J., Ellis, J. R., Flacher, H., Heinemeyer, S., Isidori, G., Lucio, M., Martinez Santos, D., Olive, K. A., Richards, A., de Vries, K. J., & Weiglein, G.. Likelihood analysis of supersymmetric SU(5) GUTs. United States. doi:10.1140/epjc/s10052-017-4639-6.
Bagnaschi, Emanuele, Costa, J. C., Sakurai, K., Borsato, M., Buchmueller, O., Cavanaugh, R., Chobanova, V., Citron, M., De Roeck, A., Dolan, M. J., Ellis, J. R., Flacher, H., Heinemeyer, S., Isidori, G., Lucio, M., Martinez Santos, D., Olive, K. A., Richards, A., de Vries, K. J., and Weiglein, G.. 2017. "Likelihood analysis of supersymmetric SU(5) GUTs". United States. doi:10.1140/epjc/s10052-017-4639-6.
@article{osti_1344018,
title = {Likelihood analysis of supersymmetric SU(5) GUTs},
author = {Bagnaschi, Emanuele and Costa, J. C. and Sakurai, K. and Borsato, M. and Buchmueller, O. and Cavanaugh, R. and Chobanova, V. and Citron, M. and De Roeck, A. and Dolan, M. J. and Ellis, J. R. and Flacher, H. and Heinemeyer, S. and Isidori, G. and Lucio, M. and Martinez Santos, D. and Olive, K. A. and Richards, A. and de Vries, K. J. and Weiglein, G.},
abstractNote = {Here, 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 7 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), $m_5$ and $m_{10}$, and for the $\mathbf{5}$ and $\mathbf{\bar 5}$ Higgs representations $m_{H_u}$ and $m_{H_d}$, a universal trilinear soft SUSY-breaking parameter $A_0$, and the ratio of Higgs vevs $\tan \beta$. 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 + MET 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 ${\tilde u_R}/{\tilde c_R} - \tilde{\chi}^0_1$ coannihilation mechanism that appears in the supersymmetric SU(5) GUT model and discuss the role of ${\tilde \nu_\tau}$ coannihilation. We find complementarity between the prospects for direct Dark Matter detection and SUSY searches at the LHC.},
doi = {10.1140/epjc/s10052-017-4639-6},
journal = {European Physical Journal. C, Particles and Fields},
number = 2,
volume = 77,
place = {United States},
year = {2017},
month = {2}
}