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NSR database version of May 1, 2024.

Search: Author = B.Bazak

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2023BA26      Phys.Lett. B 844, 138078 (2023)

M.Bagnarol, M.Schafer, B.Bazak, N.Barnea

Five-body calculation of s-wave n-⁴He scattering at next-to-leading order pionless effective field theory

NUCLEAR REACTIONS ⁴He(n, n), E<6 MeV; calculated five-body s-wave scattering within leading order and next-to-leading order (NLO) pionless effective field theory using an harmonic oscillator trap technique, phase shifts, scattering length and effective range. Comparison with experimental data.

doi: 10.1016/j.physletb.2023.138078
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2023SC07      Phys.Rev. C 107, 064001 (2023)

M.Schafer, B.Bazak

Few-nucleon scattering in pionless effective field theory

NUCLEAR REACTIONS ^2,3H, ³He(n, n), ²H(d, d), E nit given; calculated scattering lengths and effective range, phase shifts. Pionless effective field theory up to next-to-leading order. Comparison to available experimental data.

NUCLEAR STRUCTURE ²H, ⁴He; calculated binding energy.

doi: 10.1103/PhysRevC.107.064001
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2022SC02      Phys.Rev. C 105, 015202 (2022)

M.Schafer, B.Bazak, N.Barnea, A.Gal, J.Mares

Consequences of increased hypertriton binding for s-shell Λ-hypernuclear systems

NUCLEAR STRUCTURE ^3,5H; analyzed spin-singlet and spin-triplet scattering lengths for ³H hypernucleus from Λp data, binding energies for ³H and ⁵H hypernuclei for several different interaction strengths, ratio of the hypertriton excited state lifetime to the free Λ lifetime. Pionless effective field theory (EFT) approach at leading order for s-shell hypernuclei, constrained by the binding energies of the 0+ and 1+ states of ⁴H hypernucleus. Comparison with experimental binding energies from emulsion data, and from STAR collaboration. Relevance to anticipated measurements of the Λd correlation function at ALICE2CERN and new experiments at MAMI and J-PARC, JLAB, and ELPH facilities for more precise determination of binding energy of hypertriton, and its excited state.

doi: 10.1103/PhysRevC.105.015202
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2021SC07      Phys.Rev. C 103, 025204 (2021)

M.Schafer, B.Bazak, N.Barnea, J.Mares

Nature of the Λnn (J^π = 1/2⁺, I=1) and ³_ΛH^*(J^π = 3/2⁺, I=0) states

NUCLEAR STRUCTURE ³n, ³H; calculated energies of the bound states of Λnn and ³_ΛH hyper nuclei, real and imaginary parts of the resonance energies and virtual states, trajectories of the nn resonance pole in a complex energy plane. ⁴H, ⁵He; calculated separation energies of hypernuclei. Pionless effective field theory at leading order, and stochastic variational method (SVM).

doi: 10.1103/PhysRevC.103.025204
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2020EL06      Phys.Rev. C 102, 044003 (2020)

M.Eliyahu, B.Bazak, N.Barnea

Extrapolating lattice QCD results using effective field theory

NUCLEAR STRUCTURE ²n, ^2,3H, ⁴He; calculated binding energies as function of lattice size using pionless effective field theory; extrapolated the lattice results from finite to infinite volumes using nuclear effective field theory (EFT). Comparison with results of NPLQCD collaboration for pion mass of 806 MeV.

doi: 10.1103/PhysRevC.102.044003
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2017GA27      Acta Phys.Pol. B48, 1781 (2017)

A.Gal, N.Barnea, B.Bazak, E.Friedman

Onset of η-Nuclear Binding

NUCLEAR STRUCTURE ^3,4He; calculated η-nuclear binding, Q of η-hypernuclei using energy-dependent η-nucleon potential.

doi: 10.5506/APhysPolB.48.1781
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2016WE05      Eur.Phys.J. A 52, 92 (2016)

R.Weiss, B.Bazak, N.Barnea

The generalized nuclear contact and its application to the photoabsorption cross-section

doi: 10.1140/epja/i2016-16092-3
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2015WE02      Phys.Rev.Lett. 114, 012501 (2015)

R.Weiss, B.Bazak, N.Barnea

Nuclear Neutron-Proton Contact and the Photoabsorption Cross Section

doi: 10.1103/PhysRevLett.114.012501
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2015WE15      Phys.Rev. C 92, 054311 (2015)

R.Weiss, B.Bazak, N.Barnea

Generalized nuclear contacts and momentum distributions

NUCLEAR STRUCTURE ^4,6,8He, ⁶Li, ⁸Be, ¹⁰B; calculated matrix of contacts for particle pairs pp, nn, and pn; derived relations between the contact matrices and one-nucleon and two-nucleon momentum distributions, Levinger's constant, short-range correlations (SRCs). Generalization of contact formalism to nuclear systems. Tan's relations for the zero range model.

doi: 10.1103/PhysRevC.92.054311
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2014BA38      Few-Body Systems 55, 851 (2014)

B.Bazak, N.Barnea

Log-Periodic Oscillations in the Photo Response of Efimov Trimers

doi: 10.1007/s00601-014-0879-2
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2012LI15      Phys.Rev.Lett. 108, 112501 (2012)

E.Liverts, B.Bazak, N.Barnea

Quadrupole Response of a Weakly Bound Bosonic Trimer

doi: 10.1103/PhysRevLett.108.112501
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