http://hdl.handle.net/20.500.12128/9394
Tytuł: | Analytical two-loop soft mass terms of sfermions in Extended GMSB models |
Autor: | Jeliński, Tomasz Gluza, Janusz |
Słowa kluczowe: | supersymmetry; mediation; gauge mediation |
Data wydania: | 2015 |
Źródło: | Physics Letters B, Vol. 2013, iss. 9 (2015), art. no. 107 |
Abstrakt: | We discuss, for the first time, the role of the superpotential couplings of three messenger fields in a GMSB-type unification model in which messenger sector consists of both 5+ 5̄ and 10+ 10̄ of SU(5). It turns out that these interactions are relevant when coexist with appropriate messenger-MSSM couplings. Then they induce extra contributions to 2-loop soft masses. In the present model, we derive all such soft terms and discuss constraints which have to be satisfied to avoid rapid proton decay and μ/B μ problem. As an example, it is shown how superpotential couplings of three messengers influence mass spectra when the model is restricted by additional global U(1) q symmetry. We find that masses of the lightest sleptons are the most sensitive to those new interactions, what in some cases results in the NLSP/NNLSP pattern in which stau or selectron is lighter than the lightest neutralino. |
URI: | http://hdl.handle.net/20.500.12128/9394 |
DOI: | 10.1016/j.physletb.2015.11.003 |
ISSN: | 1126-6708 |
Pojawia się w kolekcji: | Artykuły (WNŚiT) |
Plik | Opis | Rozmiar | Format | |
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Jelinski_Analytical_two_loop_soft.pdf | 490,81 kB | Adobe PDF | Przejrzyj / Otwórz |
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