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The measurement of nuclear medium effects with K{sup +}

Technical Report ·
OSTI ID:80749
 [1]
  1. Tel Aviv Univ. (Israel). Sackler Faculty of Exact Sciences

The total cross sections for K{sup +} mesons on deuterium and several N=Z nuclei have been measured at several momenta in the range 450--740 MeV/c. The characteristics of the K{sup +} N interaction make the K{sup +} an ideal tool for probing the nuclear volume to reveal nuclear medium effects. Measurements of the ratio of the total cross sections per nucleon of K{sup +} {minus} A to K{sup +} d are found to lie significantly above those predicted by the usual nuclear medium corrections. This suggests that novel phenomena have been neglected. Models which incorporate such phenomena are discussed, including nucleon `swelling.` mass rescaling, nuclear pions and relativistic effects.

Research Organization:
Brookhaven National Lab., Upton, NY (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States); United States-Israel Binational Science Foundation, Jerusalem (Israel)
DOE Contract Number:
AC02-76CH00016
OSTI ID:
80749
Report Number(s):
BNL--61650; CONF-9403225--1; ON: DE95010448
Country of Publication:
United States
Language:
English

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