We indicate that the random aperiodic oscillation of the gluon distributions in a modified Balitsky -Fadin-Kurae- Lipatov （BFKL） equation has positive Lyapunov exponents. This first example of chaos in QCD evolution...We indicate that the random aperiodic oscillation of the gluon distributions in a modified Balitsky -Fadin-Kurae- Lipatov （BFKL） equation has positive Lyapunov exponents. This first example of chaos in QCD evolution equations raises the sudden disappearance of the gluon distributions at a critical small value of the Bjorken variable x and may stop the increase of the new particle events in an ultra high energy hadron collider.展开更多
The nuclear shadowing and antishadowing effects are explained by a unitarized BFKL equation. The Q^2 and x-variations of the nuclear parton distributions are detailed based on the level of the unintegrated gluon distr...The nuclear shadowing and antishadowing effects are explained by a unitarized BFKL equation. The Q^2 and x-variations of the nuclear parton distributions are detailed based on the level of the unintegrated gluon distribution. In particular, the asymptotical behavior of the unintegrated gluon distribution near the saturation limit in nuclear targets is studied. Our results in the nuclear targets are insensitive to the input distributions if the parameters are fixed by the data of a free proton.展开更多
基金Supported by National Natural Science Foundations of China under Grant Nos 10475028 and 10875044.
文摘We indicate that the random aperiodic oscillation of the gluon distributions in a modified Balitsky -Fadin-Kurae- Lipatov （BFKL） equation has positive Lyapunov exponents. This first example of chaos in QCD evolution equations raises the sudden disappearance of the gluon distributions at a critical small value of the Bjorken variable x and may stop the increase of the new particle events in an ultra high energy hadron collider.
基金National Natural Science Foundation of China (10135060,10475028,10205004)
文摘The nuclear shadowing and antishadowing effects are explained by a unitarized BFKL equation. The Q^2 and x-variations of the nuclear parton distributions are detailed based on the level of the unintegrated gluon distribution. In particular, the asymptotical behavior of the unintegrated gluon distribution near the saturation limit in nuclear targets is studied. Our results in the nuclear targets are insensitive to the input distributions if the parameters are fixed by the data of a free proton.
