Neutron-hole states in45Ar from1H(46Ar, 

Fei Lu

¹

,

Jenny Lee

²

,

M. B. Tsang

³

et al.

Abstract

To improve the effective interactions in the pf shell, it is important to measure the single particle-and hole-states near the N=28 shell gap. In this paper, the neutron spectroscopic factors of hole-states from the unstable neutron-rich 45 Ar (Z=18, N=27) nucleus have been studied using 1 H(

Selective light-induced mass transport in amorphous As x Se 100−x films driven by the composition tuning: Effect of temperature on maximum acceleration

“…The studies were performed on approximately 1 m thick films of AsxSe100-x with the value of x = 0, 2, 3,4,5,8,12,15,20,30, and 40 at%. The films were obtained by thermal evaporation of bulk ChG on glass substrates in vacuum 10 -3 Pa with relatively low deposition rates (3 -5 nm/s).…”

“…1d), can not be explained within the framework of the currently known models based on cooperation socalled "dipolar defects" with polarized light [1], the volume photodiffusion these defects [27,28], by polarizability change under illumination [29] or the viscous flow of the material (light-induced fluidization takes place, viscosity lowers to 10 12 Poise [Ref. 21]) under light pressure and gradient of surface curvature [30]. It is also obvious that the existing methods of structural studies (e.g.…”

Probing Different Characteristics of Shell Evolution Driven by Central, Spin-Orbit, and Tensor Forces

“…Experimentally, the evolution of the Z = 16 shell gap is well examined by the first excitation energies of 39 K and 47 K, which can be regarded as a proton hole in the 40 Ca and 48 39 K to 47 K is well explained. Note that this number is very close to that evaluated from the ESPE (−3.32 MeV; see the first paragraph of this Subsection) because the first two levels of 47 K are very close to single-proton-hole states.…”

“…Hence, quantifying the spin-orbit splitting is the key to extracting the tensor-force driven shell evolution. By using the SDPF-MU interaction, the proton spin-orbit splittings for the d orbital are obtained to be 7.42 and 5.05 MeV for the 40 Ca and 48 Ca cores, respectively, indicating a more than 2 MeV reduction.…”

“…In this paper, neutron-rich nuclei with the atomic mass number 25 A 55 are considered, where several doubly-closed-shell nuclei are known, including 24 O, 34 Si, 36 S, 40 Ca, 48 Ca, 52 Ca, and 54 Ca. Hence, configuration mixing within the major shell is relatively suppressed along the atomic number, Z, and N = 20 chains, for instance, which makes easier to identify the monopole matrix element most relevant to the shell evolution under debate.…”