ON THE TRANSVERSE MOMENTUM DISTRIBUTION OF MASSIVE LEPTON PAIR PRODUCTION AT HIGH ENERGY PROTON-NUCLEON COLLISIONS

PENG HONG-AN; ZOU GUO-XIENG; LIN ZHONG-JIN

Chinese Physics C> 1982, Vol. 6> Issue(2) : 154-162

ON THE TRANSVERSE MOMENTUM DISTRIBUTION OF MASSIVE LEPTON PAIR PRODUCTION AT HIGH ENERGY PROTON-NUCLEON COLLISIONS

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Abstract：
In this paper we discuss the transverse momentum Q_T. spectra and the dependenceof 〈Q_T²〉 on Q² of the μ pair for massive μμ production at high energy proton-nucleoncollisions. It is shown that if we combine the contributions of the subprocesses ofvalence-valence quark hard scattering with the 0(a_s) QCD calculations and assume theinitial parton intrinsic transverse momentum 〈P_T〉0.3 GeV/c, then the calculatedresults get a better fit to these experimental data when we use the parton distributionfunctions from deep inelastic scattering on nucleons.

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[1]

有关这方面的最新总结性文献有: E. L. Berger, SLAC-PUB-2314(1979);R. Stroynowski SLAG-PUB-2402(1979).[2] 用微扰Q旧D最低阶计算的文章很多,如: D. Politzer, Nucl. Phys, B129(1377), 301;K. Kajantie et al., Phys. Lett., 74B(1978), 384;Nucl.Phys B139(1978),72; G. Altarelli and G. Pariai., Phys. Lett., 76B(1978),351, 356[3] 例如:G. Altarelli et al., Nucl. Phys., B143(1978), 521; Nucl. Phys., B157(1979), 461[4] Y. L. Dokshitser of .al., Phys. Reports., 58 C(1980).[5] C. S. Lam et al., Phys. Lett., 80 B(1979), 225; C. S. Lam(兰志诚)1979, 6,在北京科学院高能所讲演.[6] 见[1]中E. L. Berger文章.[7] R. Blankenbecler et al., Phys. Rev.,D6(1972), 2652; C. Debeau et al., Phys. Rev., D18(1978), 2435;M.Duong-Van et al, Phys. Rev.,D16(1977), 146.[8] 彭宏安、邹国兴,高能物理与核物理,5 (1980), 600,[9] 在[2]的K. Kajantie et al., Nucl,Phys., B139(1978),72文章中有简单的说明.[10] 见[2]中G. Altarelli et al., Phys. Lett., 76B(1978), 356.[11] D.M.Kaplan et al., Phys. Rev. Lett., 40(1978), 435; J. K. Yoh et al., Phys. Rev. Lett., 41(1978),684, Phys. Rev. Lett., 41(1978), 1083; D. C, Hom et al., Phys. Rev. Lett., 37(1976), 1374.

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PENG HONG-AN, ZOU GUO-XIENG and LIN ZHONG-JIN. ON THE TRANSVERSE MOMENTUM DISTRIBUTION OF MASSIVE LEPTON PAIR PRODUCTION AT HIGH ENERGY PROTON-NUCLEON COLLISIONS[J]. Chinese Physics C, 1982, 6(2): 154-162.

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Received: 1980-08-21
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

ON THE TRANSVERSE MOMENTUM DISTRIBUTION OF MASSIVE LEPTON PAIR PRODUCTION AT HIGH ENERGY PROTON-NUCLEON COLLISIONS

Received Date: 1980-08-21
Accepted Date: 1900-01-01
Available Online: 1982-04-05

Abstract: In this paper we discuss the transverse momentum Q_T. spectra and the dependenceof 〈Q_T²〉 on Q² of the μ pair for massive μμ production at high energy proton-nucleoncollisions. It is shown that if we combine the contributions of the subprocesses ofvalence-valence quark hard scattering with the 0(a_s) QCD calculations and assume theinitial parton intrinsic transverse momentum 〈P_T〉0.3 GeV/c, then the calculatedresults get a better fit to these experimental data when we use the parton distributionfunctions from deep inelastic scattering on nucleons.