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- Texas A&M UniversityUS93 papers
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18 papers · 1 filter
Low-Scale SU(4)_W Unification
Csaba Balazs, Tianjun Li, Fei Wang +1
We embed the minimal left-right model SU(2)_L*SU(2)_R* U(1)_{B-L} into an SU(4)_W gauge group, and break the unified group via five-dimensional S^1/(Z_2*Z_2) orbifolding. Leptons a…
Mirage in the Sky: Non-thermal Dark Matter, Gravitino Problem, and Cosmic Ray Anomalies
Bhaskar Dutta, Louis Leblond, Kuver Sinha
Recent anomalies in cosmic rays could be due to dark matter annihilation in our galaxy. In order to get the required large cross-section to explain the data while still obtaining t…
Stringy WIMP Detection and Annihilation
James A. Maxin, Van E. Mayes, Dimitri V. Nanopoulos
We calculate the direct dark matter detection spin-independent and proton spin-dependent cross-sections for a semi-realistic intersecting D6-brane model. The cross-sections are com…
The SU(3)_C * SU(4)_W * U(1)_{B-L} Models with Left-Right Unification
Tianjun Li, Fei Wang, Jin Min Yang
The left-right models provide an explanation for the parity asymmetry in the Standard Model (SM). To further understand the origin of the left-right symmetry, we study a partial un…
ATIC and PAMELA Results on Cosmic e^\pm Excesses and Neutrino Masses
Xiao-Jun Bi, Pei-Hong Gu, Tianjun Li +1
Recently the ATIC and PAMELA collaborations released their results which show the abundant e^\pm excess in cosmic rays well above the background, but not for the \bar{p}. Their dat…
Generalization of Friedberg-Lee Symmetry
Chao-Shang Huang, Tianjun Li, Wei Liao +1
We study the possible origin of Friedberg-Lee symmetry. First, we propose the generalized Friedberg-Lee symmetry in the potential by including the scalar fields in the field transf…