78 citations · 148 across the 5 of their papers we have counts for
4 papers · 1 filter
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…
Top Hypercharge
Cheng-Wei Chiang, Jing Jiang, Tianjun Li +1
We propose a top hypercharge model with gauge symmetry SU(3)_C x SU(2)_L x U(1)_1 x U(1)_2 where the first two families of the Standard Model (SM) fermions are charged under U(1)_1…
Testable Flipped SU(5) x U(1)_X Models
Jing Jiang, Tianjun Li, Dimitri V. Nanopoulos
The little hierarchy between the GUT scale and the string scale may give us some hints that can be tested at the LHC. To achieve string-scale gauge coupling unification, we introdu…
Non-Canonical MSSM, Unification, And New Particles At The LHC
Ilia Gogoladze, Tianjun Li, V. N. Senoguz +1
We consider non-canonical embeddings of the MSSM in high-dimensional orbifold GUTs based on the gauge symmetry SU(N), N=5,6,7,8. The hypercharge normalization factor k_Y can either…