Deeply bound pionic states and the effective pion mass in nuclear systems

T. Waas; R. Brockmann; W. Weise

doi:10.1016/s0370-2693(97)00643-6

Deeply bound pionic states and the effective pion mass in nuclear systems

T. Waas
, R. Brockmann
, W. Weise

Department of Physics

Technical University of Munich

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

43 Scopus citations

Abstract

We show that the s-wave pion-nuclear potential which reproduces the deeply bound pionic states in Pb, recently discovered at GSI, is remarkably close to the one constructed directly from low energy theorems based on chiral symmetry. Converting this information into an effective pion mass we find m(black star)_π/m_π ≃ 1.13 in the center of the Pb nucleus, and m(black star)_π/m_π ≃ 1.07 in symmetric nuclear matter.

Original language	English
Pages (from-to)	215-218
Number of pages	4
Journal	Physics Letters B
Volume	405
Issue number	3-4
DOIs	https://doi.org/10.1016/s0370-2693(97)00643-6
State	Published - 24 Jul 1997

Keywords

Chiral symmetry
Deeply bound pionic states of nuclei
Effective pion mass in nuclear matter
Pion-nucleus optical potential
Pionic atoms

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10.1016/s0370-2693(97)00643-6

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title = "Deeply bound pionic states and the effective pion mass in nuclear systems",

abstract = "We show that the s-wave pion-nuclear potential which reproduces the deeply bound pionic states in Pb, recently discovered at GSI, is remarkably close to the one constructed directly from low energy theorems based on chiral symmetry. Converting this information into an effective pion mass we find m(black star)π/mπ ≃ 1.13 in the center of the Pb nucleus, and m(black star)π/mπ ≃ 1.07 in symmetric nuclear matter.",

keywords = "Chiral symmetry, Deeply bound pionic states of nuclei, Effective pion mass in nuclear matter, Pion-nucleus optical potential, Pionic atoms",

author = "T. Waas and R. Brockmann and W. Weise",

note = "Funding Information: l Work supported in part by GSI and BMBP. {\textquoteright} Permanent address: Institut fiir Kemphysik, Universitit",

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doi = "10.1016/s0370-2693(97)00643-6",

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TY - JOUR

T1 - Deeply bound pionic states and the effective pion mass in nuclear systems

AU - Waas, T.

AU - Brockmann, R.

AU - Weise, W.

N1 - Funding Information: l Work supported in part by GSI and BMBP. ’ Permanent address: Institut fiir Kemphysik, Universitit

PY - 1997/7/24

Y1 - 1997/7/24

N2 - We show that the s-wave pion-nuclear potential which reproduces the deeply bound pionic states in Pb, recently discovered at GSI, is remarkably close to the one constructed directly from low energy theorems based on chiral symmetry. Converting this information into an effective pion mass we find m(black star)π/mπ ≃ 1.13 in the center of the Pb nucleus, and m(black star)π/mπ ≃ 1.07 in symmetric nuclear matter.

AB - We show that the s-wave pion-nuclear potential which reproduces the deeply bound pionic states in Pb, recently discovered at GSI, is remarkably close to the one constructed directly from low energy theorems based on chiral symmetry. Converting this information into an effective pion mass we find m(black star)π/mπ ≃ 1.13 in the center of the Pb nucleus, and m(black star)π/mπ ≃ 1.07 in symmetric nuclear matter.

KW - Chiral symmetry

KW - Deeply bound pionic states of nuclei

KW - Effective pion mass in nuclear matter

KW - Pion-nucleus optical potential

KW - Pionic atoms

UR - https://www.scopus.com/pages/publications/0000751973

U2 - 10.1016/s0370-2693(97)00643-6

DO - 10.1016/s0370-2693(97)00643-6

M3 - Article

AN - SCOPUS:0000751973

SN - 0370-2693

VL - 405

SP - 215

EP - 218

JO - Physics Letters B

JF - Physics Letters B

IS - 3-4

ER -

Deeply bound pionic states and the effective pion mass in nuclear systems

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Keywords

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