Zobrazeno 1 - 10
of 260
pro vyhledávání: '"Hiyama, Emiko"'
Autor:
Hiyama, Emiko, Suzuki, Toshio
The moments of the charge distributions obtained by the analysis of electron-scattering data are examined in $^3$H and $^3$He. It is shown that the experimental form-factors are well explained, but the values of the moments of the charge distribution
Externí odkaz:
http://arxiv.org/abs/2406.17394
We present a theoretical study of resonance lifetimes in a two-component three-body system, specifically examining the decay of three-body resonances into a deep dimer and an unbound particle. Utilising the Gaussian expansion method together with the
Externí odkaz:
http://arxiv.org/abs/2312.04080
A Skyrme-type effective potential is determined to describe the interaction between $\Lambda$ hyperons in nuclear medium. Experimental data of the binding energies of the double-$\Lambda$ ($\Lambda\Lambda$) nuclei with mass numbers $A=10$--$13$ are u
Externí odkaz:
http://arxiv.org/abs/2309.01348
Spectrum of the doubly heavy tetraquarks is studied in a constituent quark model including one-pion exchange (OPE) potential. Central and tensor forces induced by OPE between two light quarks are considered. Our results show that $I(J^P)=0(1^+)$ comp
Externí odkaz:
http://arxiv.org/abs/2308.05466
Autor:
Myo, Takayuki, Hiyama, Emiko
Publikováno v:
Physical Review C 107, 054302 (2023)
We calculated the energy spectra of the neutron-rich He $\Lambda$ hypernuclei with $A=6$ to 9 within the framework of an $\alpha + \Lambda +Xn$ ($X=1$--4) cluster model using the cluster orbital shell model. The employed constituent particles reprodu
Externí odkaz:
http://arxiv.org/abs/2304.07662
Publikováno v:
Phys. Lett. B 840, 137866 (2023)
Based on a nonequilibrium-statistical relativistic diffusion model that is consistent with quantum chromodynamics (QCD), we investigate baryon stopping in relativistic heavy-ion collisions at SPS, RHIC, and LHC energies. The net-proton rapidity distr
Externí odkaz:
http://arxiv.org/abs/2301.06465
Autor:
Itagaki, Naoyuki, Hiyama, Emiko
The fundamental question is how the hyperon plays a role in the nuclear structure. It is of particular importance, especially in the light mass region, to verify the structure change when $\Lambda$ particle(s) is added to normal nuclei. The ground st
Externí odkaz:
http://arxiv.org/abs/2301.01878
We explore the description of the bound $^{19}$B isotope in terms of a $^{17}$B+n+n three-body system where the two-body subsystems $^{17}$B+n and neutron-neutron (nn) have virtual states close to the continuum. Dimensionless scaling functions for th
Externí odkaz:
http://arxiv.org/abs/2208.11604
We present a reaction model to describe the fast removal of the $\alpha$-particle core in $^8$He nucleus with eventual emission of four neutrons. The obtained four neutron energy distributions allows to explain the sharp low energy peak observed by s
Externí odkaz:
http://arxiv.org/abs/2207.07575
Publikováno v:
Physics Letters B833 (2022) 137367
We have investigated the possible existence of a $^7$H resonant state, considered as a five-body system consisting of a $^3$H core with four valence neutrons. To this aim, an effective n-$^3$H potential is constructed in order to reproduce the low en
Externí odkaz:
http://arxiv.org/abs/2207.04634