v 1 3 F eb 1 99 5 Variational calculations of the Λ - seperation energy of the 17
نویسنده
چکیده
Variational Monte Carlo calculations have been made for the 17 ΛO hypernucleus using realistic twoand three-baryon interactions. A two pion exchange potential with spinand space-exchange components is used for the ΛN potential. Three-body two-pion exchange and strongly repulsive dispersive ΛNN interactions are also included. The trial wave function is constructed from pairand triplet-correlation operators acting on a single particle determinant. These operators consist of central, spin, isospin, tensor and threebaryon potential components. A cluster Monte Carlo method is developed for noncentral correlations and is used with up to four-baryon clusters in our calculations. The three-baryon ΛNN force is discussed. PACS numbers: 21.80.+a,21.10.Dr,13.75.Ev,27.20.+n Typeset using REVTEX 1
منابع مشابه
ar X iv : n uc l - th / 9 50 30 23 v 1 2 7 M ar 1 99 5 The three - baryon Λ NN potential
Using a three-baryon ΛNN potential having a spin-independent dispersive and a two-pion exchange components, realistic variational Monte Carlo calculations have been performed for the Λ-seperation energy for ΛHe. A relationship between strengths associated with both pieces of ΛNN force giving exact experimental Λ-seperation energy has been obtained which then combined with our previous study on ...
متن کاملar X iv : n uc l - th / 9 90 30 34 v 1 1 2 M ar 1 99 9 Particle Mixing and Charge Asymmetric
We calculate the contributions of a particular set of charge asymmetric ΛN interactions to the difference of the separation energies of 4 Λ He and 4 Λ H. We use perturbation theory with four-body variational Monte Carlo wave functions calculated from a Hamiltonian with two-and three-hadron forces. We compare with the data and with an earlier calculation made by one of us which employed a two-bo...
متن کاملar X iv : n uc l - th / 9 30 20 03 v 1 5 F eb 1 99 3 ISN 93 - 17 SPIN AND FLAVOUR : CONCLUDING REMARKS 1
We review some of the salient results presented at this Workshop, together with some comments on the underlying physics, and the proposed facilities for future experiments. ISN 93–17 February 5, 2008. Invited talk at the Workshop on Spin and Flavour in Hadronic and Electromagnetic Interactions, Turin, September 1992, to appear in the Proceedings SPIN AND FLAVOUR: CONCLUDING REMARKS
متن کاملar X iv : h ep - l at / 9 90 80 06 v 1 5 A ug 1 99
Experiments with imaginary chemical potential and Glasgow method carried out in two interrelated models – four dimensional QCD in the infinite coupling limit, and one dimensional QCD – support the point of view expressed by the title. The profound differences of dense, cold matter , and hot, moderately dense, hadron gas might be reflected by different performances of numerical approaches to fin...
متن کامل2 6 Ju l 1 99 8 Monte Carlo Comparison of Quasielectron Wave Functions
Variational Monte Carlo calculations of the quasielectron and quasihole ex-citation energies in the fractional quantum Hall effect have been carried out at filling fractions ν = 1/3, 1/5, and 1/7. For the quasielectron both the trial wave function originally proposed by Laughlin and the composite fermion wave function proposed by Jain have been used. We find that for long-range Coulomb interact...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1995