Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1995-05-10
Phys.Lett.B360:1-6,1995
Physics
High Energy Physics
High Energy Physics - Phenomenology
10 pages, uuencoded postscript file. To obtain a copy of this paper, send e-mail to TECHPUB@SLAC.STANFORD.EDU and ask for it
Scientific paper
10.1016/0370-2693(95)01135-D
We calculate the electromagnetic and axial nuclear moments of the deuteron and triton as a function of their radius using a relativistic two-nucleon and three-nucleon model formulated on the light-cone. The results also provide an estimate of the nuclear binding corrections to helicity-dependent deep inelastic scattering sum rules. At large nucleon radius, the moments are given by the usual non-relativistic formulae modified by finite binding effects. At small radius, the moments take the canonical values given by the generalization of the Drell-Hearn-Gerasimov sum rule. In addition, as R-->0, the constituent helicities become completely disoriented, and the Gamow-Teller matrix element vanishes. Thus, in the pointlike limit MR-->0, the moments of a spin-one bound states coincide with the canonical couplings of elementary spin-one bosons of the Standard Model, mu=e/M, Q=-e/M^2, and g_A=0.
Brodsky Stanley J.
Schlumpf Felix
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