On specific QCD properties of heavy quark fragmentation ('dead cone')
Yu L Dokshitzer; V A Khoze; S I Troyan; Yu L Dokshitzer; Dept. of Theor. Phys., Lund Univ., Sweden; V A Khoze; Dept. of Theor. Phys., Lund Univ., Sweden; S I Troyan; Dept. of Theor. Phys., Lund Univ., Sweden
Журнал:
Journal of Physics G: Nuclear and Particle Physics
Дата:
1991-10-01
Аннотация:
It is the restriction on the phase space of emitting gluons connected with the kinematics of a heavy quark Q=c, b, . . . which determines the difference of the QCD jet produced by Q from that of ordinary light (practically massless) quarks q=u, d, s. The authors consider the Q-quark as relativistic (E<sub>Q</sub>>>M<sub>Q</sub>, Theta <sub>0</sub> identical to M<sub>Q</sub>/E<sub>Q</sub><<1) and taking care of logarithmic effects ignoring small (power) corrections of the order of Theta <sub>0</sub>.
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