Supported by National Natural Science Foundation of China (10565001,10647002,10979003,10875138,11005122)
The time calibration for end cap TOF system of BESIII is studied in this paper. It has achieved about 110 ps time resolution for muons in dimu events. The pulse height correction using electronic scan curve and the pr...
Supported by National Natural Science Foundation of China (10565001, 10647002, 10875138)
The principle of the method for the BESIII TOF calibration using cosmic ray data without magnetic field are reported in this paper. After applying calibration constants, the single-end readout time resolution could re...
Supported by the National Natural Science Foundation of China (Grant Nos. 10647002 and 10565001) ;the Guangxi Science Foundation (Grant Nos. 0841030, 0542042 and 0575020)
The non-local vacuum condensates of quantum chromodynamics (QCD) describe the distributions of quarks and gluons in the non-perturbative QCD vacuum state. Physically, this means that vacuum quarks and gluons have a no...
Supported by National Natural Science Foundation of China(10647002,10565001);Natural Science Foundation of Guangxi(0575020,0542042,0481030)
We study the properties of QCD vacuum state in this paper. The values of various local quark vacuum condensates, quark-gluon mixed vacuum condensates, and the structure of non-local quark vacuum condensate are predict...
Supported by National Natural Science Foundation of China(10565001,10647002);Science Foundation of Guangxi(0481030,0542042,0575020)
The short-range correlation between nucleons in finite nuclei is investigated in high energy protonnucleus and α-nucleus elastic scattering in the framework of Glauber multiple scattering theory without any free para...