EFFECTIVE PION MASS IN THE NUCLEAR MEDIUM DEDUCED FROM DEEPLY BOUND PIONIC STATES IN PB-207

Authors
YAMAZAKI T HAYANO RS ITAHASHI K OYAMA K GILLITZER A GILG H KNULLE M MUNCH M KIENLE P SCHOTT W WEISE W GEISSEL H IWASA N MUNZENBERG G HIRENZAKI S TOKI H
Citation
T. Yamazaki et al., EFFECTIVE PION MASS IN THE NUCLEAR MEDIUM DEDUCED FROM DEEPLY BOUND PIONIC STATES IN PB-207, Physics letters. Section B, 418(3-4), 1998, pp. 246-251
Citations number
26
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
418
Issue
3-4
Year of publication
1998
Pages
246 - 251
Database
ISI
SICI code
0370-2693(1998)418:3-4<246:EPMITN>2.0.ZU;2-Q
Abstract
Deeply bound Is states of pi(-) as well as the 2p states in Pb-207 wer e identified in the Pb-208(d,He-3) reaction at 600 MeV. The binding en ergies of pi(-) in Pb-207 have been determined as B-pi(2p) = 5.31 +/- 0.09 MeV and B-pi(1s) = 7.1 +/- 0.2 MeV by comparing the observed Q-va lue spectrum with theory. These values indicate Chat the effective pi( -) mass increases by 19.3 +/- 2.7 MeV at the center of the Pb-207 nucl eus. (C) 1998 Published by Elsevier Science B.V.