this work,the polarization effects of a strongly magnetized quark-gluon plasma are studied at finite temperature.It is found that a background magnetic field can have a strong effect on the photon and dilepton emissio...this work,the polarization effects of a strongly magnetized quark-gluon plasma are studied at finite temperature.It is found that a background magnetic field can have a strong effect on the photon and dilepton emission rates.It affects not only the total rate but also the angular dependence.In particular,the Landau-level quantization leads to a nontrivial momentum dependence of the photon/dilepton anisotropic flow coefficient on transverse momentum.In the case of photon emission,nonzero coefficients v_(n)(with even n)have opposite signs at small and large values of the transverse momentum.Additionally,the v_(n) signs alternate with increasing vn,and their approximate values decrease as 1/n^(2) in magnitude.The anisotropy of dilepton emission is well-pronounced only at large transverse momenta and small invariant masses.The corresponding Un coefficients are of the same magnitude and show a similar sign-alternative pattern with increasing n as in the photon emission.It is proposed that the anisotropy of the photon and dilepton emission may serve as indirect measurements of the magnetic field.展开更多
2002848VXI 总线 C 尺寸双通道功率计的设计[刊]/田明宏//计算机自动测量与控制.—1999,7(4).—8～10,29(AC)从硬件与软件两方面阐述 VXI 总线 C 尺寸双通道通过式功率计的设计方法。对如何提高功率计的精度采取了一定的措施。参7200284...2002848VXI 总线 C 尺寸双通道功率计的设计[刊]/田明宏//计算机自动测量与控制.—1999,7(4).—8～10,29(AC)从硬件与软件两方面阐述 VXI 总线 C 尺寸双通道通过式功率计的设计方法。对如何提高功率计的精度采取了一定的措施。参72002849用于高功率微波测量的电磁探针研究[刊]/李永忠//国防科技大学学报.—1999,21(5).—72-74(K)线电流元和面电流元近区场的简化计算(见2003261)展开更多
文摘this work,the polarization effects of a strongly magnetized quark-gluon plasma are studied at finite temperature.It is found that a background magnetic field can have a strong effect on the photon and dilepton emission rates.It affects not only the total rate but also the angular dependence.In particular,the Landau-level quantization leads to a nontrivial momentum dependence of the photon/dilepton anisotropic flow coefficient on transverse momentum.In the case of photon emission,nonzero coefficients v_(n)(with even n)have opposite signs at small and large values of the transverse momentum.Additionally,the v_(n) signs alternate with increasing vn,and their approximate values decrease as 1/n^(2) in magnitude.The anisotropy of dilepton emission is well-pronounced only at large transverse momenta and small invariant masses.The corresponding Un coefficients are of the same magnitude and show a similar sign-alternative pattern with increasing n as in the photon emission.It is proposed that the anisotropy of the photon and dilepton emission may serve as indirect measurements of the magnetic field.
文摘2002848VXI 总线 C 尺寸双通道功率计的设计[刊]/田明宏//计算机自动测量与控制.—1999,7(4).—8～10,29(AC)从硬件与软件两方面阐述 VXI 总线 C 尺寸双通道通过式功率计的设计方法。对如何提高功率计的精度采取了一定的措施。参72002849用于高功率微波测量的电磁探针研究[刊]/李永忠//国防科技大学学报.—1999,21(5).—72-74(K)线电流元和面电流元近区场的简化计算(见2003261)
