arXiv subjects

Chi Yang

Publications and source records attributed to Chi Yang.

21 records · Page 2Linked to original sources

arXiv2013

Systematic study of the experimental measurements on ratios of different $Υ$ states

The world data on yields and ratios of different $Υ$ states created in hadron collisions at $\sqrt{s} = 19-8000$ GeV are examined in systematic way. We find that $Υ(2S)/Υ(1S)=0.275\pm0.005$ and $Υ(3S)/Υ(1S)=0.128\pm0.004$. No signficant energy dependence of these ratios are observed within the broad collision energies. In addition, the rapidity, transverse momentum, and transverse mass dependence of these ratios are also reported.

hep-ex↗

arXiv1996

Effect of Strong Magnetic Fields on the Equilibrium of a Degenerate Gas of Nucleons and Electrons

We obtain the equations that define the equilibrium of a homogeneous relativistic gas of neutrons, protons and electrons in a constant magnetic field as applied to the conditions that probably occur near the center of neutron stars. We compute the relative densities of the particles at equilibrium and the Fermi momentum of electrons in the strong magnetic field as function of the density of neutrons and the magnetic field induction. Novel features are revealed as to the ratio of the number of protons to the number of neutrons at equilibrium in the presence of large magnetic fields.

cond-mat.stat-mech↗

arXiv1996

Two-dimensional electron gas in uniform magnetic and electric fields

The thermodynamic potential of an ideal nonrelativistic gas of two-dimensional electrons in crossed uniform magnetic and electric fields is constructed. For low temperatures and very weak electric fields, it is shown that the Hall conductance is always quantized at integral multiples of $e^2/h$ over a large range of strong magnetic fields. This could be viewed as a quantum statistical explanation of the integral quantum Hall effect. Magnetic properties of the system at high temperatures are briefly discussed.

cond-mat↗