Color-Octet Contributions in High Energy π-p Collision Process

WANG Xiu-Lian; DUAN Chun-Gui; WANG Hong-Min; HE Ming-Zhong

Chinese Physics C> 2001, Vol. 25> Issue(7) : 621-627

Color-Octet Contributions in High Energy π-p Collision Process

Institute of High Energy Physics, CAS, Beijing 100039, China2 Department of Physics, Hebei Normal University, Shijiazhuang 050016, China3 CCAST World Lab., Beijing 100080, China4 Department of Electronics, Hebei Normal University, Shijiazhuang 050031, China

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Abstract：
In this paper, using the color-octet mechanism of Q, the cross section of high Energy π-p Collision process is calculated. We found that the color-octet contributions can not be neglected and are even larger than color-singlet contributions at high P_T. Compared with the future experiments, the parton distribution functions that we have used and QQ color-octet mechanism can be examined.

References

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. Berger E L,Jones D.Phys.Rev.,1981,D23:15212. CDF Callab Abe F et al.Phys.Rev.Lett.,1997,79:5723. CDF Callab Abe F et al.Phys.Rev.Lett.,1997,79:5784. Braaten E,YUAN T C.Phys.Rev.Lett.,1993,71:16735. Bodwin G T,Braaten E,Lepage G P.Phys.Rev.1992,D46:R37026. Braaten E,Fleming S.Phys.Rev.Lett.,1995,74:33277. Braaten E,Fleming S,YUAN T C.Annu.Rev.Nucl.Part.Sci.,1996,46:1978. Bodowin G T,Braaten E,Lepage G P.Phys.Rev.,1995,D51:11259. Caswell W E,Lepage G P.Phys.Lett.,1986,B167:43710. Glück M,Reya E,Vogt A.Z.Phys.,1992,C53:65111. Baier R,Ruckl R.Z.Phys.,1983,C19:25112. Ko P,Lee Jungil,SONG H S.Phys.Rev.,1996,D54:431213. Beneke M,Krmer M.Phys.Rev.,1997,D55:526914. Glück M,Reya E,Vogt A.Z.Phys.,1995,C67:433

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WANG Xiu-Lian, DUAN Chun-Gui, WANG Hong-Min and HE Ming-Zhong. Color-Octet Contributions in High Energy π-p Collision Process[J]. Chinese Physics C, 2001, 25(7): 621-627.

WANG Xiu-Lian, DUAN Chun-Gui, WANG Hong-Min and HE Ming-Zhong. Color-Octet Contributions in High Energy π-p Collision Process[J]. Chinese Physics C, 2001, 25(7): 621-627. shu

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Received: 2000-07-18
Revised: 1900-01-01

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

Color-Octet Contributions in High Energy π-p Collision Process

Corresponding author: WANG Xiu-Lian,

Institute of High Energy Physics, CAS, Beijing 100039, China2 Department of Physics, Hebei Normal University, Shijiazhuang 050016, China3 CCAST World Lab., Beijing 100080, China4 Department of Electronics, Hebei Normal University, Shijiazhuang 050031, China

Received Date: 2000-07-18
Accepted Date: 1900-01-01
Available Online: 2001-07-05

Abstract: In this paper, using the color-octet mechanism of Q, the cross section of high Energy π-p Collision process is calculated. We found that the color-octet contributions can not be neglected and are even larger than color-singlet contributions at high P_T. Compared with the future experiments, the parton distribution functions that we have used and QQ color-octet mechanism can be examined.