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45 papers · 2 filters
2HDM Portal Dark Matter: LHC data and the Fermi-LAT 135 GeV Line
Yang Bai, Vernon Barger, Lisa L. Everett +1
We study a two Higgs doublet model augmented by a scalar dark matter particle that provides an excellent fit to the LHC Higgs data and the Fermi-LAT 135 GeV line. The heavy CP-even…
Dichromatic Dark Matter
Yang Bai, Meng Su, Yue Zhao
Both the robust INTEGRAL 511 keV gamma-ray line and the recent tentative hint of the 135 GeV gamma-ray line from Fermi-LAT have similar signal morphologies, and may be produced fro…
B -> D^(*) tau nu and B -> tau nu in chiral U(1)' models with flavored multi Higgs doublets
P. Ko, Yuji Omura, Chaehyun Yu
We discuss semileptonic and leptonic B decays, B to D^{(*)} tau nu and B to tau nu, in the chiral U(1)' models which were proposed by the present authors in the context of the top…
Jet Substructure by Accident
Timothy Cohen, Eder Izaguirre, Mariangela Lisanti +1
We propose a new search strategy for high-multiplicity hadronic final states. When new particles are produced at threshold, the distribution of their decay products is approximatel…
A Systematic All-Orders Method to Eliminate Renormalization-Scale and Scheme Ambiguities in PQCD
Matin Mojaza, Stanley J. Brodsky, Xing-Gang Wu
We introduce a generalization of the conventional renormalization schemes used in dimensional regularization, which illuminates the renormalization scheme and scale ambiguities of…
Resummation of relativistic corrections to exclusive productions of charmonia in e+ e- collisions
Ying Fan, Jungil Lee, Chaehyun Yu
We investigate two exclusive processes, e+ e- -> eta_c + gamma and e+ e- -> J/psi + J/psi, at the center-of-momentum energy sqrt{s}=10.58 GeV within the framework of the nonrelativ…