On the determination of the pion effective mass in nuclei from pionic atoms

E. Friedman; A. Gal

doi:10.1016/S0370-2693(98)00655-8

On the determination of the pion effective mass in nuclei from pionic atoms

E. Friedman^*
, A. Gal

^*Corresponding author for this work

Racah Institute of Physics

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

The binding energies of the deeply bound 1s and 2p states in pionic atoms of ²⁰⁷Pb, recently established experimentally in the ²⁰⁸Pb(d,³He) reaction, have been used by several groups to derive the pion effective mass in nuclear matter. We show that these binding energies are fully consistent with 'normal' pionic atoms and that the real part of the pion-nucleus potential at the center of ²⁰⁷Pb is 28 ± 3 MeV and not 20 MeV as suggested previously.

Original language	English
Pages (from-to)	235-240
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	432
Issue number	3-4
DOIs	https://doi.org/10.1016/S0370-2693(98)00655-8
State	Published - 30 Jul 1998

Keywords

Deeply bound pionic states
Pion effective mass
Pion-nucleus potential
Pionic atoms

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10.1016/S0370-2693(98)00655-8

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abstract = "The binding energies of the deeply bound 1s and 2p states in pionic atoms of 207Pb, recently established experimentally in the 208Pb(d,3He) reaction, have been used by several groups to derive the pion effective mass in nuclear matter. We show that these binding energies are fully consistent with 'normal' pionic atoms and that the real part of the pion-nucleus potential at the center of 207Pb is 28 ± 3 MeV and not 20 MeV as suggested previously.",

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AU - Gal, A.

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N2 - The binding energies of the deeply bound 1s and 2p states in pionic atoms of 207Pb, recently established experimentally in the 208Pb(d,3He) reaction, have been used by several groups to derive the pion effective mass in nuclear matter. We show that these binding energies are fully consistent with 'normal' pionic atoms and that the real part of the pion-nucleus potential at the center of 207Pb is 28 ± 3 MeV and not 20 MeV as suggested previously.

AB - The binding energies of the deeply bound 1s and 2p states in pionic atoms of 207Pb, recently established experimentally in the 208Pb(d,3He) reaction, have been used by several groups to derive the pion effective mass in nuclear matter. We show that these binding energies are fully consistent with 'normal' pionic atoms and that the real part of the pion-nucleus potential at the center of 207Pb is 28 ± 3 MeV and not 20 MeV as suggested previously.

KW - Deeply bound pionic states

KW - Pion effective mass

KW - Pion-nucleus potential

KW - Pionic atoms

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JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 3-4

ER -

On the determination of the pion effective mass in nuclei from pionic atoms

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Keywords

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