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- University of California, RiversideUS228 papers
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6 papers · 2 filters
Heavy quarkonium: progress, puzzles, and opportunities
N. Brambilla, S. Eidelman, B. K. Heltsley +64
A golden age for heavy quarkonium physics dawned a decade ago, initiated by the confluence of exciting advances in quantum chromodynamics (QCD) and an explosion of related experime…
Why do we observe a weak force? The hierarchy problem in the multiverse
Oram Gedalia, Alejandro Jenkins, Gilad Perez
Unless the scale of electroweak symmetry breaking is stabilized dynamically, most of the universes in a multiverse theory will lack an observable weak nuclear interaction. Such "we…
Reconciling thermal leptogenesis with the gravitino problem in SUSY models with mixed axion/axino dark matter
Howard Baer, Sabine Kraml, Andre Lessa +1
Successful implementation of thermal leptogenesis requires re-heat temperatures T_R\agt 2\times 10^9 GeV, in apparent conflict with SUSY models with TeV-scale gravitinos, which req…
LHC Implications of the WIMP Miracle and Grand Unification
Can Kilic, Karoline Kopp, Takemichi Okui
With the assumptions that dark matter consists of an electroweak triplet and that the gauge couplings unify at a high scale, we identify robust phenomenological trends of possible…
Viable Gravity-Mediated Supersymmetry Breaking
Graham D. Kribs, Takemichi Okui, Tuhin S. Roy
We present a complete, viable model of gravity-mediated supersymmetry breaking that is safe from all flavor constraints. The central new idea is to employ a supersymmetry breaking…
Meson Emission Model of Psi to N Nbar m Charmonium Strong Decays
T. Barnes, Xiaoguang Li, W. Roberts
In this paper we consider a sequential "meson emission" mechanism for charmonium decays of the type Psi -> N Nbar m, where Psi is a generic charmonium state, N is a nucleon and m i…