Chow CK, Cohen TD
Department of Physics, University of Maryland, College Park, Maryland 20742-4111, USA.
Phys Rev Lett. 2000 Jun 12;84(24):5474-7. doi: 10.1103/PhysRevLett.84.5474.
We demonstrate in a model independent way that, in the combined heavy-quark and large- N(c) limit, there exists a new contracted U(4) symmetry which connects orbitally excited heavy baryons to the ground states.
我们以一种与模型无关的方式证明，在重夸克和大N（c）极限的组合情况下，存在一种新的收缩U（4）对称性，它将轨道激发的重子与基态连接起来。
