The nucleon's tensor charges(isovector g_(T)^(v)=δu-δd and isoscalar g_(T)^(s)=δu+δd)are calculated using the QCD(quantum chromodynamics)sum rules in the presence of an external tensor field.By combining the m...The nucleon's tensor charges(isovector g_(T)^(v)=δu-δd and isoscalar g_(T)^(s)=δu+δd)are calculated using the QCD(quantum chromodynamics)sum rules in the presence of an external tensor field.By combining the mass sum rule of nucleon,we derive a simplified form for proton tensor charges,which gives g_(T)^(v)=1.27 and g_(T)^(s)=1.31,or δu=1.29 and δd=0.02 at the scale of nucleon mass,with an uncertainty about 20%.展开更多
The quantum field theory on the universe model of closed Friedmann,i.e.the third quantization,is discussed in detail,and an abnormal distribution is given which is different from Hosoya’s result.
The quantum field theory on the universe in the induced theory of gravity is discussed in detail.After the wave function of the universes was regarded as a universe field operator in the minisuperspace,not only the di...The quantum field theory on the universe in the induced theory of gravity is discussed in detail.After the wave function of the universes was regarded as a universe field operator in the minisuperspace,not only the difficulty in a probabilistic interpretation in the quantum cosmology can be circumvented,but also the conclusion of the multiple production of universes is obtained.We find the distribution of these universes created from‘nothing’is the planck distribution.展开更多
基金Supported in part by the National Natural Science Foundation of Chinathe Nuclear Science Foundation of China.
文摘The nucleon's tensor charges(isovector g_(T)^(v)=δu-δd and isoscalar g_(T)^(s)=δu+δd)are calculated using the QCD(quantum chromodynamics)sum rules in the presence of an external tensor field.By combining the mass sum rule of nucleon,we derive a simplified form for proton tensor charges,which gives g_(T)^(v)=1.27 and g_(T)^(s)=1.31,or δu=1.29 and δd=0.02 at the scale of nucleon mass,with an uncertainty about 20%.
基金the National Natural Science Foundation of China.
文摘The quantum field theory on the universe model of closed Friedmann,i.e.the third quantization,is discussed in detail,and an abnormal distribution is given which is different from Hosoya’s result.
基金Supported by the National Natural Science Foundation of China.
文摘The quantum field theory on the universe in the induced theory of gravity is discussed in detail.After the wave function of the universes was regarded as a universe field operator in the minisuperspace,not only the difficulty in a probabilistic interpretation in the quantum cosmology can be circumvented,but also the conclusion of the multiple production of universes is obtained.We find the distribution of these universes created from‘nothing’is the planck distribution.
