An Experimental Evidence for the Appearance of Semihard Processes in Hadron-Hadron Collisions at Collider Energies

  • After carefully analysing the scatter plot of pt vs.N of hadron-hadron collisions at s=540GeV,we point out that the appearence of large average transverse momentum per event pt and large multiplicity N is a new experimental evidence of existing hard component at the collision.The Monte Carlo simulation for one(soft) and two(both hard and soft) component model demonstrates qualitatively correct ness of this arguement.
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  • [1] M.Banner et al.(UA2),Phys.Lett.118B(1982)203;G.Amison et al.(UA1),Phys.Lett.123B(1983)115.[2]G.Ciapetti(UA1),in Proceedings of the Fifth Topical Workshop on Proton-Antiproton Collider Physics,St.Vincent Aosta Valley,Italy,1985,edited by M.Greco(WorldScientific,Singapore,1985(p.488.[3]Chao Wei-qin,Meng Ta-chung,Pan Ji-cai,Phys,Rev,Lett.58(1987)1399.[4]X.N.Wang,R.C.Hwa,Phys.Rev.D39(1989)187.[5]Wu Yuanfang,Liu Lianshou,Phys.Lett.269B(1991)28.[6]Y.F.Wu et al.(UA1) .Acta Phys.Slov,44(1994)141.[7]Liu Feng,Wu Yuanfang,Liu Lianshou,Chinese J.of Nucl.Phys,15(1993)7.[8]UA5 Collaboration,Phys,Lett,160B(1985)199.
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Liu Hongping, Liu Feng, Wu Yuanfang and Liu Lianshou. An Experimental Evidence for the Appearance of Semihard Processes in Hadron-Hadron Collisions at Collider Energies[J]. Chinese Physics C, 1997, 21(7): 609-614.
Liu Hongping, Liu Feng, Wu Yuanfang and Liu Lianshou. An Experimental Evidence for the Appearance of Semihard Processes in Hadron-Hadron Collisions at Collider Energies[J]. Chinese Physics C, 1997, 21(7): 609-614. shu
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Received: 1900-01-01
Revised: 1900-01-01
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An Experimental Evidence for the Appearance of Semihard Processes in Hadron-Hadron Collisions at Collider Energies

    Corresponding author: Liu Hongping,
  • Institute of Particle Physics,Huazhong Normal University,Wuhan 430070

Abstract: After carefully analysing the scatter plot of pt vs.N of hadron-hadron collisions at s=540GeV,we point out that the appearence of large average transverse momentum per event pt and large multiplicity N is a new experimental evidence of existing hard component at the collision.The Monte Carlo simulation for one(soft) and two(both hard and soft) component model demonstrates qualitatively correct ness of this arguement.

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