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The Spin Structure of the Proton

- B. Ma
- Physics
- 12 January 2000

It is shown that the proton "spin crisis'' or "spin puzzle" can be understood by the relativistic effect of quark transversal motions due to the Melosh-Wigner rotation. The quark helicity $\Delta q$… Expand

Lorentz violation from cosmological objects with very high energy photon emissions

- L. Shao, Zhi-Guang Xiao, B. Ma
- Physics
- 12 November 2009

Abstract Lorentz violation (LV) is predicted by some quantum gravity theories, where photon dispersion relation is modified, and the speed of light becomes energy-dependent. Consequently, it results… Expand

Light speed variation from gamma-ray bursts

Abstract The effect of quantum gravity can bring a tiny light speed variation which is detectable through energetic photons propagating from gamma ray bursts (GRBs) to an observer such as the space… Expand

Lorentz violation from gamma-ray bursts

The constancy of light speed is a basic assumption in Einstein’s special relativity, and consequently the Lorentz invariance is a fundamental symmetry of space–time in modern physics. However, it is… Expand

Empirical mantissa distributions of pulsars

Abstract The occurrence of digits one through nine as the leftmost nonzero digit of numbers from real world sources is often not uniformly distributed, but instead, is distributed according to a… Expand

Quark Wigner distributions in a light-cone spectator model

- Tianbo Liu, B. Ma
- Physics
- 30 January 2015

We investigate the quark Wigner distributions in a light-cone spectator model. The Wigner distribution, as a quasi-distribution function, provides the most general one-parton information in a hadron.… Expand

Light flavor asymmetry of nucleon sea

- Huiying Song, Xinyu Zhang, B. Ma
- Physics
- 18 January 2011

The light flavor antiquark distributions of the nucleon sea are calculated in the effective chiral quark model and compared with experimental results. The contributions of the flavor-symmetric… Expand

Reduced-order surrogate models for scalar-tensor gravity in the strong field regime and applications to binary pulsars and GW170817

- Junjie Zhao, L. Shao, Zhoujian Cao, B. Ma
- Physics
- Physical Review D
- 1 July 2019

We investigate the scalar-tensor gravity of Damour and Esposito-Far\`ese (DEF), which predicts nontrivial phenomena in the nonperturbative strong-field regime for neutron stars (NSs). Instead of… Expand

Quantization of Black Holes

We show that black holes can be quantized in an intuitive and elegant way with results in agreement with conventional knowledge of black holes by using Bohr's idea of quantizing the motion of an… Expand

A prediction of neutrino mixing matrix with CP violating phase

- Xinyi Zhang, B. Ma
- Physics
- 13 March 2012

Abstract The latest experimental progress has established three kinds of neutrino oscillations with three mixing angles measured to rather high precision. There is still one parameter, i.e., the CP… Expand

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