高能散射与αqRegge轨迹

我们引进一个具有真空量子数的新的Regge轨迹α_q,α_q(0)=α_p(0)=1,但α′_q(0)≠α′_p(0)。在高能非交换过程中α_q和α_p同时参与贡献且相互干涉,其结果和一个等效的Regge轨迹α_e相当,唯α_e的斜率α′_e(0)与过程有关,这与单一α_p轨迹的结论有本质的区别。根据我们的看法,由不同过程测得的α′_e(0)将有不同数值,这点和最近的实验是相容的,并且预期将来K-N散射所测的α′_e(0)亦将另取他值。α_q轨迹的存在将不改变高能相关过程总截面的关系,但使高能核子极化度随能量增大较缓慢地衰减。

HIGH-ENERGY SCATTERING AND αq-REGGE TRAJECTORY

In this article, we have introduced a new Regge trajectory, α_q, with vacuum quantum numbers, α_q(0) = α_p(0) = 1, but α′_q(0)≠ α′_p(0). α_q as well as α_p takes part in the high energy non-exchange processes, and they interfere with each other. The consequence of the two vacuum Regge trajectories is equivalent to an effective trajectory α_e, the slope of which at zero energy α′_e(0) is dependent on the processes. The essential difference of our theory from the old one deduced from a single vacuum trajectory, α_p, is that α′_e(0) will be different for different processes. This does not conflict with the newest experiments.It is expected that the α′_e(0) for K-N scattering will take different values from those of π-N and N-N. The existence of α_q may not influence the relations between the total cross-sections of the crossed processes, but the polarization of the high energy nucleon after scattering will decrease much more slowly, than absence of α_q, as energy increases.