A new calculational approach of the amplitude for gluon radiation in e-A DIS

GUO Yun; WANG En-Ke

Chinese Physics C> 2006, Vol. 30> Issue(5) : 417-422

A new calculational approach of the amplitude for gluon radiation in e-A DIS

GUO Yun ,
WANG En-Ke ^,

Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, China

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Abstract：
In the deeply inelastic e-A scattering, the gluon radiation induced by multiple scattering will lead to medium modification of the parton fragmentation functions and also associate with the energy loss of the leading quark. To obtain the hard partonic part of quark-gluon double scattering, one can do a complete calculation within the framework of generalized factorization in perturbative QCD. In another way one can utilize the approach of helicity amplitude approximation(HAA) to calculate the amplitude of gluon radiation. However, the two methods are both complicated and tedious. In this paper, we will introduce a new approach which enables one to calculate easily the amplitude for gluon radiation in multiple scattering. The final results obtained by using our new approach agree exactly with the complete calculation in perturbative QCD.

References

[1]

. QIU Jian-Wei, Sterman G. Nucl. Phys., 1991, B353: 1052. QIU Jian-Wei, Sterman G. Nucl. Phys., 1991, B353: 1373. WANG X N, GUO X F. Nucl. Phys., 2001, A696: 7884. GUO X F, WANG X N. Phys. Rev. Lett., 2000, 85: 35915. ZHANG Ben-Wei, WANG Xin-Nian. Nucl. Phys., 2003,A720: 4296. LUO M, QIU J, Sterman G. Phys. Lett., 1992, B279: 3777. Gyulassy M, Lévai P, Vitev I. Nucl. Phys., 2001, B594:3718. Gyulassy M, Lévai P, Vitev I. Phys. Rev. Lett., 2000, 85:55359. WANG E, WANG X N. Phys. Rev. Lett., 2001, 87: 142301

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[5]	Song Guilian , Wang Jingiu , Yang Jingkui . Charge Symmetry Breaking Effects in Elastic Nucleon Scattering From the ³H and ³He Mirror Nuclei. Chinese Physics C, 1999, 23(6): 567-572.
[6]	Peng Hongan , Xu Jiasheng . New Progresses in Deep Inelastic Scattering in Small x Region. Chinese Physics C, 1999, 23(2): 142-150.
[7]	Zhou Yufeng , Peng Hongan , Liu Lianshou . Large Rapidity GaP Events and Reggeon in DIS. Chinese Physics C, 1999, 23(8): 790-796.
[8]	Li Yangguo . Antiproton -Nucleus Charge Exchange Reaction and Inelastic Scattering. Chinese Physics C, 1996, 20(11): 1021-1027.
[9]	Li Yangguo . Spin Effect of Antiprotou-Nucleus Inelastic Scatterings at Intermediate Energies. Chinese Physics C, 1994, 18(5): 466-472.
[10]	CHEN Ke-Zhong . PION INELASTIC SCATTERING ON ¹²C AT 800MeV/c. Chinese Physics C, 1986, 10(6): 690-696.
[11]	WANG Zheng-Ben . THE BEHAVIOR OF PARTONS OF LARGE TRANSVERSE MOMENTUM IN DEEP INELASTIC SCATTERING. Chinese Physics C, 1986, 10(5): 536-544.
[12]	MAO Zhen-Lin . RADIATIVE CORRECTIONS TO THE DEEP INEIASTIC POLARIZED E-P SCATTERING. Chinese Physics C, 1984, 8(1): 1-9.
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[14]	HOU Ren-Chang , ZHAO Xuan . QUADRUPOLE-OCTUPOLE TWO-PHONON EXCITATIONS IN INELASTIC SCATTERING. Chinese Physics C, 1983, 7(2): 236-244.
[15]	LIU BO , CHIANG HUAN-CHING . THE DWIA ANALYSIS OF PION-¹⁸O INELASTIC SCATTERING. Chinese Physics C, 1982, 6(6): 743-749.
[16]	LIU BO , WU ZONG-EN . A MICROSCOPIC CALCULATION OF π⁺-¹⁶O ELASTIC SCATTERING. Chinese Physics C, 1981, 5(1): 134-136.
[17]	Peng Hong-an , Zou Guo-Xing . AN INVESTIGATION OF THE EFFECTS OF CHARGED BOSONIC PARTONS (DIQUARKS) IN e-P DEEP INELASTIC SCATTERING. Chinese Physics C, 1980, 4(5): 600-608.
[18]	MA WEI-XING , LI YANG-GUO . ELASTIC AND INELASTIC π-NUCLEAR SCATTERING. Chinese Physics C, 1979, 3(2): 203-209.
[19]	EUAN JING-HUI , CHENG ZHI-SHIUH , CHEN GUI-YING , LI ZHU-CHI , LU TING , WU SHAN-LING . INELASTIC SCATTERING OF THERMAL NEUTRONS BY METAL HYDRIDES ZrH_1.66 AND TiH_1.92. Chinese Physics C, 1978, 2(5): 441-449.
[20]	WU KUO-HUAH , ZHONG JI-QUAN , GE LING-XIAO . THE EFFECT OF-NUCLEAR DISTORTION IN DEEP INELASTIC SCATTERING. Chinese Physics C, 1977, 1(1): 83-89.

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GUO Yun and WANG En-Ke. A new calculational approach of the amplitude for gluon radiation in e-A DIS[J]. Chinese Physics C, 2006, 30(5): 417-422.

GUO Yun and WANG En-Ke. A new calculational approach of the amplitude for gluon radiation in e-A DIS[J]. Chinese Physics C, 2006, 30(5): 417-422. shu

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Received: 2005-10-09
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

A new calculational approach of the amplitude for gluon radiation in e-A DIS

GUO Yun
WANG En-Ke ^,

Corresponding author: WANG En-Ke,

Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, China

Received Date: 2005-10-09
Accepted Date: 1900-01-01
Available Online: 2006-05-05

Abstract: In the deeply inelastic e-A scattering, the gluon radiation induced by multiple scattering will lead to medium modification of the parton fragmentation functions and also associate with the energy loss of the leading quark. To obtain the hard partonic part of quark-gluon double scattering, one can do a complete calculation within the framework of generalized factorization in perturbative QCD. In another way one can utilize the approach of helicity amplitude approximation(HAA) to calculate the amplitude of gluon radiation. However, the two methods are both complicated and tedious. In this paper, we will introduce a new approach which enables one to calculate easily the amplitude for gluon radiation in multiple scattering. The final results obtained by using our new approach agree exactly with the complete calculation in perturbative QCD.