Spin transfer in exclusive Lambda production from (p)over-right-arrowp collisions at 3.67 GeV/c

Citation
F. Balestra et al., Spin transfer in exclusive Lambda production from (p)over-right-arrowp collisions at 3.67 GeV/c, PHYS REV L, 83(8), 1999, pp. 1534-1537
Citations number
14
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
0031-9007 → ACNP
Volume
83
Issue
8
Year of publication
1999
Pages
1534 - 1537
Database
ISI
SICI code
0031-9007(19990823)83:8<1534:STIELP>2.0.ZU;2-W
Abstract
We report the first polarization transfer measurements for exclusive hypero n production reactions. The normal spin transfer coefficient D-NN for (p) o ver right arrow p --> pK(+)<(Lambda)over right arrow> is large and negative for forward Lambda production at a beam momentum of 3.67 GeV/c, a result q ualitatively consistent with expectations for a mechanism dominated by kaon exchange and rescattering. The sign of D-NN is opposite to that observed i n the fragmentation regime for inclusive Lambda production at much higher e nergies.