It is interesting to investigate the OZI-forbidden decays of orthoquarkoknium, J/ψ→γπ^0（γη,γη′）, J/ψ→π^＋π^-（π^0π^0）. At first glance, there is infrared divergence in the above processes. In this wo...It is interesting to investigate the OZI-forbidden decays of orthoquarkoknium, J/ψ→γπ^0（γη,γη′）, J/ψ→π^＋π^-（π^0π^0）. At first glance, there is infrared divergence in the above processes. In this work, to clear the mist we use the factorization method with the light cone wavefunction of the final state light meson. We prove straightforwardly that the infrared divergence can be eliminated completely.展开更多
FOR much of China’s history, the city of Beijing has been the nation’s capital.Thus it boasts a wealth of ancient cultural treasures, including buildings, parks and monuments. These are five of the better ones.
The Forbidden City offers an example of balancing heritage preservation and economic development Residing in a Beijing courtyard for a long time,Shan Jixiang,curator of the Palace Museum,has been familiar with the cit...The Forbidden City offers an example of balancing heritage preservation and economic development Residing in a Beijing courtyard for a long time,Shan Jixiang,curator of the Palace Museum,has been familiar with the city’s ancient architecture since childhood.展开更多
基金Supported by National Natural Science Foundation of China under Grant No. 10847117the Nature Science Fund of Hebei Province under Grant No. A2005000090Fund of Education Department of Hebei Province under Grant No. 2007409
文摘It is interesting to investigate the OZI-forbidden decays of orthoquarkoknium, J/ψ→γπ^0（γη,γη′）, J/ψ→π^＋π^-（π^0π^0）. At first glance, there is infrared divergence in the above processes. In this work, to clear the mist we use the factorization method with the light cone wavefunction of the final state light meson. We prove straightforwardly that the infrared divergence can be eliminated completely.
文摘FOR much of China’s history, the city of Beijing has been the nation’s capital.Thus it boasts a wealth of ancient cultural treasures, including buildings, parks and monuments. These are five of the better ones.
文摘The Forbidden City offers an example of balancing heritage preservation and economic development Residing in a Beijing courtyard for a long time,Shan Jixiang,curator of the Palace Museum,has been familiar with the city’s ancient architecture since childhood.
