Neutron skins of 208Pb and 48Ca from pionic probes

E. Friedman

doi:10.1016/j.nuclphysa.2012.09.007

Neutron skins of ²⁰⁸Pb and ⁴⁸Ca from pionic probes

E. Friedman

Racah Institute of Physics

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

48 Scopus citations

Abstract

The neutron skin of ²⁰⁸Pb has received considerable attention in recent years. A variety of strongly-interacting probes depict a rather consistent picture but pionic probes have not been referred to in this context. We present here neutron-skin values from pionic atoms and from total reaction cross sections of π⁺ between 0.7 and 2 GeV/c which fit well into the picture. In addition we show that a neutron-skin for ⁴⁸Ca can be obtained from existing data on pionic atoms and the result agrees with pion scattering experiments and with the scattering of α particles.

Original language	English
Pages (from-to)	46-52
Number of pages	7
Journal	Nuclear Physics A
Volume	896
DOIs	https://doi.org/10.1016/j.nuclphysa.2012.09.007
State	Published - 17 Dec 2012

Bibliographical note

Publisher Copyright:
© 2012

Keywords

ATOMIC PHYSICS
C
Ca
Ca
E at 0.7–2.0 GeV/c
NUCLEAR REACTIONS
Pb
Pb deduced neutron
Pb(π,X)
analyzed pionic atom level shifts
analyzed total σ at relativistic energies varying neutron radial paramaters and using simultaneous fit to Allardyce data
calculated
calculated
deduced
level widths by varying neutron radial paramaters and using de Laat and Powers data sets
neutron skin
nuclear radii
proton radii

Access to Document

10.1016/j.nuclphysa.2012.09.007

Cite this

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title = "Neutron skins of 208Pb and 48Ca from pionic probes",

abstract = "The neutron skin of 208Pb has received considerable attention in recent years. A variety of strongly-interacting probes depict a rather consistent picture but pionic probes have not been referred to in this context. We present here neutron-skin values from pionic atoms and from total reaction cross sections of π+ between 0.7 and 2 GeV/c which fit well into the picture. In addition we show that a neutron-skin for 48Ca can be obtained from existing data on pionic atoms and the result agrees with pion scattering experiments and with the scattering of α particles.",

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doi = "10.1016/j.nuclphysa.2012.09.007",

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AB - The neutron skin of 208Pb has received considerable attention in recent years. A variety of strongly-interacting probes depict a rather consistent picture but pionic probes have not been referred to in this context. We present here neutron-skin values from pionic atoms and from total reaction cross sections of π+ between 0.7 and 2 GeV/c which fit well into the picture. In addition we show that a neutron-skin for 48Ca can be obtained from existing data on pionic atoms and the result agrees with pion scattering experiments and with the scattering of α particles.

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KW - proton radii

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