561 reputation
313
bio website arxitics.com
location Beijing
age 24
visits member for 1 year, 8 months
seen 5 hours ago

I am a graduate student in high energy phenomenology.

To facilitate my subscription of arXiv eprints, I have developed arXiv Analytics.


Jul
14
answered Operator Product Expansion in Massless 2D QED
Jul
13
awarded  Autobiographer
Jul
2
awarded  Curious
Jun
14
accepted Semileptonic decays of the $B_c$ meson
Jun
14
comment Semileptonic decays of the $B_c$ meson
Thank you again for your comments. It helps a lot.
Jun
14
comment Semileptonic decays of the $B_c$ meson
Thank you very much! Is it possible to introduce something like parton distribution function to relate the tree-level approximation to the decay of $B_c$ meson?
Jun
14
comment Semileptonic decays of the $B_c$ meson
Very nice! It is really helpful.
Jun
13
accepted Derivation of neutrino oscillation phase factor
Jun
12
revised Semileptonic decays of the $B_c$ meson
deleted 2 characters in body; edited tags
Jun
12
asked Semileptonic decays of the $B_c$ meson
Jun
6
comment Derivation of neutrino oscillation phase factor
From the PDG Review provided by user12262, I found another article Quantum Theory of Neutrino Oscillations for Pedestrians - Simple Answers to Confusing Questions which is instructive on this question.
Jun
6
comment Derivation of neutrino oscillation phase factor
Thank you very much. From the PDG, the time interval $T$ can be related by $T=L/\bar{v}$, where $\bar{v}$ is the ''average'' velocity. But why it cannot be treated as constant?
Jun
4
asked Derivation of neutrino oscillation phase factor
Feb
26
asked Effective Field Theories of QCD
Feb
12
comment Evaluate $1$-loop contribution to the $4$-point Green's function
The $\int_0^1d x$ is copyed from (2). The two $I$s are not the same in your comments.
Feb
12
comment Evaluate $1$-loop contribution to the $4$-point Green's function
For $m^2=0$, (3) can be expressed by the Euler integral.
Feb
12
comment Evaluate $1$-loop contribution to the $4$-point Green's function
We cannot obtain an analytical expression of the integral (3). For $d=4$, (1) is log divergent.
Feb
12
comment Evaluate $1$-loop contribution to the $4$-point Green's function
And $\Delta=q_{\mathrm{E}}^2x(1-x)+m^2$, it is independent of $p_{\mathrm{E}}$.
Feb
12
answered Evaluate $1$-loop contribution to the $4$-point Green's function
Feb
10
comment Why does Stephen Hawking say black holes don't exist?
Is the word "correct" a typo in "I think most people (not including me) believe that classical General Relativity is correct near the blackhole horizon."?