title: Delta-->Ngamma in large-N(c) QCD.
abstract: The decay Delta(+)-->pgamma is studied in the 1/N(c) expansion of QCD. The ratio of the helicity amplitudes is determined to be A(3/2)/A(1/2)=sqrt[3]+O(1/N(2)(c)). Equivalently, the ratio E2/M1 of the multipole amplitudes is predicted to be order 1/N(2)(c).
authors.affiliation: University of California, San Diego, 9500 Gilman Drive, La Jolla 92093-0319, USA. ejenkins@ucsd.edu
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Jenkins
authors.forename: Xiangdong
authors.initials: X
authors.lastname: Ji
authors.forename: Aneesh V
authors.initials: AV
authors.lastname: Manohar