Journal article

Likelihood analysis of the minimal AMSB model

E Bagnaschi, M Borsato, K Sakurai, O Buchmueller, R Cavanaugh, V Chobanova, M Citron, JC Costa, A De Roeck, MJ Dolan, JR Ellis, H Flaecher, S Heinemeyer, G Isidori, M Lucio, F Luo, D Martinez Santos, KA Olive, A Richards, G Weiglein



We perform a likelihood analysis of the minimal anomaly-mediated supersymmetry-breaking (mAMSB) model using constraints from cosmology and accelerator experiments. We find that either a wino-like or a Higgsino-like neutralino LSP, [Formula: see text], may provide the cold dark matter (DM), both with similar likelihoods. The upper limit on the DM density from Planck and other experiments enforces [Formula: see text] after the inclusion of Sommerfeld enhancement in its annihilations. If most of the cold DM density is provided by the [Formula: see text], the measured value of the Higgs mass favours a limited range of [Formula: see text] (and also for [Formula: see text] if [Formula: see text]) ..

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University of Melbourne Researchers


Awarded by DFG

Awarded by European Commission

Awarded by National Science Foundation at the University of Illinois Chicago

Awarded by United States Department of Energy

Awarded by STFC (UK)

Awarded by CICYT

Awarded by Spanish MICINN

Awarded by European Research Council

Awarded by DOE at the University of Minnesota

Awarded by National Science Centre, Poland

Awarded by Division Of Physics

Awarded by Science and Technology Facilities Council

Awarded by STFC

Funding Acknowledgements

The work of E.B. and G.W. is supported in part by the Collaborative Research Center SFB676 of the DFG, "Particles, Strings and the early Universe", and by the European Commission through the "IliggsTools" Initial Training Network PITN-GA-2012316704. The work of R.C. is supported in part by the National Science Foundation under Grant No. PHY-1151640 at the University of Illinois Chicago and in part by Fermilab, operated by Fermi Research Alliance, LLC under Contract No. De-AC02-07C1111359 with the United States Department of Energy. This work of M.J.D. is supported in part by the Australian Research Council. The work of J.E. is supported in part by STFC (UK) via the research Grant ST/L000326/1, and the work of H.F. is also supported in part by STFC (UK). The work of S.H. is supported in part by CICYT (Grant FPA 2013-40715-P) and by the Spanish MICINN's Consolider-Ingenio 2010 Program under Grant MultiDark CSD2009-00064. The work of D.M.-S. is supported by the European Research Council via Grant BSMFLEET 639068. The work of F.L. is supported by World Premier International Research Center Initiative (WPI), MEXT, Japan. The work of K.A.O. is supported in part by DOE Grant DE-SC0011842 at the University of Minnesota. KS is supported by STFC through the IPPP grant. The work of K.S. is partially supported by the National Science Centre, Poland, under research Grants DEC-2014/15/B/ST2/02157 and DEC-2015/18/M/ST2/00054.