Saturday, June 30, 2012

Barbie ve Abisi Tatilde









Barbie ve abisi tatil için yola koyulurlar. Onlara sıcak havalarda giymeleri için en güzel kıyafetleri bul. İyi oyunlar.

Barbie oyunlarının tek adresi . Kanal D Oyunları.Com


































1206.6572 (F. Rotaru et al.)




Unveiling the intruder deformed 0$^+_2$ state in $^{34}$Si    [PDF]

F. Rotaru, F. Negoita, S. Grévy, J. Mrazek, S. Lukyanov, F. Nowacki, A. Poves, O. Sorlin, C. Borcea, R. Borcea, A. Buta, L. Caceres, S. Calinescu, R. Chevrier, Zs. Dombradi, J. M. Daugas, D. Lebhertz, Y. Penionzhkevich, C. Petrone, D. Sohler, M. Stanoiu, J. C. Thomas




The 0$^+_2$ state in $^{34}$Si has been populated at the {\sc Ganil/Lise3} facility through the $\beta$-decay of a newly discovered 1$^+$ isomer in $^{34}$Al of 26(1) ms half-life. The simultaneous detection of $e^+e^-$ pairs allowed the determination of the excitation energy E(0$^+_2$)=2719(3) keV and the half-life T$_{1/2}$=19.4(7) ns, from which an electric monopole strength of $\rho^2$(E0)=13.0(0.9)$\times10^{-3}$ was deduced. The 2$^+_1$ state is observed to decay both to the 0$^+_1$ ground state and to the newly observed 0$^+_2$ state (via a 607(2) keV transition) with a ratio R(2$^+_1$$\rightarrow0^+_1/2^+_1$$\rightarrow0^+_2$)=1380(717). Gathering all information, a weak mixing with the 0$^+_1$ and a large deformation parameter of $\beta$=0.29(4) are found for the 0$^+_2$ state, in good agreement with shell model calculations using a new {\sc sdpf-u-mix} interaction allowing \textit{np-nh} excitations across the N=20 shell gap.

View original: http://arxiv.org/abs/1206.6572

Friday, June 29, 2012

1206.6694 (C. L. Zhou et al.)


Ratio of shear viscosity to entropy density in multifragmentation of Au

+ Au    [PDF]

C. L. Zhou, Y. G. Ma, D. Q. Fang, S. X. Li, G. Q. Zhang

The ratio of the shear viscosity ($\eta$) to entropy density ($s$) for the intermediate energy heavy-ion collisions has been calculated by using the Green-Kubo method in the framework of the quantum molecular dynamics model. The theoretical curve of $\eta/s$ as a function of the incident energy for the head-on Au+Au collisions displays that a minimum region of $\eta/s$ has been approached at higher incident energies, where the minimum $\eta/s$ value is about 7 times Kovtun-Son- Starinets (KSS) bound (1/4$\pi$). We argue that the onset of minimum $\eta/s$ region at higher incident energies corresponds to the nuclear liquid gas phase transition in nuclear multifragmentation.
View original: http://arxiv.org/abs/1206.6694