Calorimeter Counter Calibration Correction for Small Angle GDH Experiment in Hall-A

LV Hai-Jiang; JIANG Yi; YE Yun-Xiu; YAN Xin-Hu; ZHANG Pei

Chinese Physics C> 2007, Vol. 31> Issue(1) : 84-87

Calorimeter Counter Calibration Correction for Small Angle GDH Experiment in Hall-A

Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China2 Department of Physics, Huangshan University, Huangshan 245021, China

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Abstract：
The Fumili minimization method was used in the calibration for the calorimeter counter on HRS at Hall-A in Jefferson Jlab(JLab) for the data of small angle GDH experiment. Due to a large set of kinematics and changes in hardware settings, different calibrations were needed for the calorimeter detector. The resolution of the calorimeter for the scattering electron was about 0.06GeV when its momentum was at 1.0GeV.

References

[1]	. Alcorn J et al(JLab Collaboration). NIM, 2004, A522:2942. Gerasimov S. Yaz., 1965, 2: 598; Drell S D, Hearn A C. Phys. Rev. Lett., 1966, 16: 908

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LV Hai-Jiang, JIANG Yi, YE Yun-Xiu, YAN Xin-Hu and ZHANG Pei. Calorimeter Counter Calibration Correction for Small Angle GDH Experiment in Hall-A[J]. Chinese Physics C, 2007, 31(1): 84-87.

LV Hai-Jiang, JIANG Yi, YE Yun-Xiu, YAN Xin-Hu and ZHANG Pei. Calorimeter Counter Calibration Correction for Small Angle GDH Experiment in Hall-A[J]. Chinese Physics C, 2007, 31(1): 84-87. shu

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Received: 2006-03-28
Revised: 2006-04-13

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