Imperial College London
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ProfessorRobertoTrotta

Faculty of Natural Sciences, Department of Physics

Visiting Professor
 
 
 
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Contact

 

+44 (0)20 7594 7793r.trotta Website CV

 
 
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Assistant

 

Mrs Sheila Ekudo +44 (0)20 7594 2086

 
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Location

 

1009Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Roszkowski:2011:10.1103/PhysRevD.83.015014,
author = {Roszkowski, L and Ruiz, de Austri R and Trotta, R and Tsai, Y-LS and Varley, TA},
doi = {10.1103/PhysRevD.83.015014},
journal = {Physical Reveiw D},
title = {Global fits of the nonuniversal Higgs model},
url = {http://dx.doi.org/10.1103/PhysRevD.83.015014},
volume = {83},
year = {2011}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We carry out global fits to the nonuniversal Higgs Model (NUHM), applying all relevant present-day constraints. We present global probability maps for the NUHM parameters and observables (including collider signatures, direct, and indirect detection quantities), both in terms of posterior probabilities and interms of profile likelihood maps. We identify regions of the parameter space where the neutralino dark matter in the model is either binolike, or else higgsinolike with mass close to 1 TeV and a spinindependentscattering cross section ˜10¯–10¯ pb. We trace the occurrence of the higgsinolike region to be a consequence of a mild focusing effect in the running of one of the Higgs masses, the existence of which in the NUHM we identify in our analysis. Although the usual binolike neutralino is more prominent, higgsinolike dark matter cannot be excluded, however its significance strongly depends on the prior and statistics used to assess it. We note that, despite experimental constraints often favoring different regions of parameter space to the constrained minimal supersymmetric standard model, mostobservational consequences appear fairly similar, which will make it challenging to distinguish the two models experimentally.
AU  - Roszkowski,L
AU  - Ruiz,de Austri R
AU  - Trotta,R
AU  - Tsai,Y-LS
AU  - Varley,TA
DO  - 10.1103/PhysRevD.83.015014
PY  - 2011///
SN  - 1550-7998
TI  - Global fits of the nonuniversal Higgs model
T2  - Physical Reveiw D
UR  - http://dx.doi.org/10.1103/PhysRevD.83.015014
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000286765800007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/29711
VL  - 83
ER  -
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