Yin-Zhe Ma

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The HypHI collaboration has conducted the first physics production experiment, so called " Phase 0 " in cave C. In the experiment, projectiles of 6 Li at 2 A GeV with an intensity in average of 5×10 7 per spill (10 s spill length) were impinged in a graphite target with a thickness of 8 g/cm 2 .
The holographic dark energy model is one of the important ways of dealing with the dark energy problems in the quantum gravity framework. In this model, the dimension-less parameter c plays an essential role in determining the evolution of the holographic dark energy. In particular, the holographic dark energy with c ≥ 1 can be effectively described by a(More)
In this paper we first give a brief review of the variable cosmological constant model and its scalar field description. We mainly discuss two types of variable cosmological constant models: a power law and H power law models. A method to obtain all of the equivalent scalar field potentials and the effective equation of state of the two models are(More)
We estimate the amount of the missing baryons detected by the Planck measurements of the cosmic microwave background in the direction of central galaxies (CGs) identified in the Sloan galaxy survey. The peculiar motion of the gas inside and around the CGs unveils values of the Thomson optical depth τ(T) in the range 0.2-2×10(-4), indicating that the regions(More)
In this paper we first give a brief review of the variable cosmological constant model and its scalar field description. We mainly discuss two types of variable cosmological constant models: a power law and H power law models. A method to obtain all of the equivalent scalar field potentials and the effective equation of state of the two models are(More)
The HypHI project aims to perform precise hypernuclear spectroscopy with induced reactions of stable heavy ion beams and RI-beams on fixed stable target materials [1]. In heavy ion induced reactions, hypernuclei are produced as projectile fragments with coalescence of a hyperon which is produced in the participant region of the collision. It has been(More)
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