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- Lian-Cun Zheng, Kang-Ning Wang, Ying-Tao Gao
- Computers & Mathematics with Applications
- 2011

- V. Barger, Y. Gao, W.-Y. Keung, D. Marfatia
- 2009

We describe a characteristic signature of dark matter (DM) annihilation or decay into gamma-rays. We show that if the total angular momentum of the initial DM particle(s) vanishes , and helicity suppression operates to prevent annihilation/decay into light fermion pairs, then the amplitude for the dominant 3-body final state f + f − γ has a unique form… (More)

- V Barger, Y Gao, D Marfatia
- 2006

We test if the latest Gold set of 182 SNIa in conjunction with the CMB shift parameter show a preference between the ΛCDM model, three wCDM models, and the DGP model of modified gravity as an explanation for the current accelerating phase of the universe's expansion. We consider flat wCDM models with an equation of state w(a) that is (i) constant with scale… (More)

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