Determination of the strong coupling constant using available experimental data

Atashbar Tehrani

doi:10.1088/1674-1137/34/9/079

Chinese Physics C> 2010, Vol. 34> Issue(9) : 1485-1487 DOI: 10.1088/1674-1137/34/9/079

Determination of the strong coupling constant using available experimental data

Atashbar Tehrani ^,

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Abstract：
We determine the strong coupling constant α_s up to 4-loop in perturbative QCD. Testing QCD requires the measurement of α_s over ranges of energy scales. In this analysis, the value of α_s is determined from the unpolarized structure functions data points by minimizing the χ² function between the theory result and experimental data. Using perturbative QCD calculations from threshold corrections, we obtain α_s(M_Z²)=0.1139±0.0020 at N³LO which is in good agreement with the very recently results from the inclusive jet cross section in pp collisions at √s=1.96 TeV.

References

[1]

Altarelli G.arXiv:0907.1751[hep-ph][2] Khorramian A N,Khanpoar H,Tehrani S A.arXiv:0909.2665[hep-ph][3] James F.CERN Program Library,Long Writeup D506(MINUIT)[4] Bethke S.arXiv:0908.1135[hep-ph][5] Khorramian A N,Atashbar Tehrani S,Ghominejad M.Acta Phys.Polon.B,2007,38:3551[6] Khorramian A N,Tehrani S A.Phys.Rev.D,2008,78:074019[arXiv:0805.3063[hep-ph] ][7] Parisi G,Sourlas N.Nucl.Phys.,1979,B151:421; Barker I S,Langensiepen C B,Shaw G.Nucl.Phys.,1981,B186:61[8] Kataev A L,Kotikov A V,Parente G,Sidorov A V.Phys.Lett.B,1998,417:374[arXiv:hep-ph/9706534][9] Kataev A L,Parente G,Sidorov A V.arXiv:hep-ph/9809500[10] Kataev A L,Parente G,Sidorov A V.Nucl.Phys.B,2000,573:405[arXiv:hep-ph/9905310][11] Kataev A L,Parente G,Sidorov A V.Phys.Part.Nucl.,2003,34:20[axXiv:hep-ph/0106221]; Kataev A L,Parente G,Sidorov A V.Nucl.Phys.Proc.Suppl.,2003,116:105[arXiv:hep-ph/0211151][12] Khorramian A N,Tehrani S A,Mirjalili A.Nucl.Phys.Proc.Suppl.,2007,174:27[13] Atashbar Tehrani S,Khorramian A N.Nucl.Phys.Proc.Suppl.,2009,186:58[14] Khorramian A N,Tehrani S A.J.Phys.Conf.Ser.,2008,110:022022[15] Khorramian A N,Tehrani S A.AIP Conf.Proc.,2008,1006:118[16] Atashbar Tehrani S,Khorramian A N.JHEP,2007,0707:048[arXiv:0705.2647[hep-ph] ][17] Leader E,Sidorov A V,Stamenov D B.Int.J.Mod.Phys.A,1998,13:5573[arXiv:hep-ph/9708335][18] Khorramian A N,Atashbar Tehrani S.arXiv:0712.2373[hep-ph][19] Khorramian A N,Atashbar Tehrani S.AlP Conf.Proc.,2007,915:420[20] Khorramian A N,Atashbar Tehrani S.AIP Conf.Proc.,2007,915:502[21] Benvenuti A C et al(BCDMS collaboration).Phys.Lett.B,1990,237:592; Benvenuti A C et al(BCDMS collaboration).Phys.Lett.B,1989,223:485; Phys.Lett.B,1990,237:592; Benvenuti A C et al(BCDMS collaboration).Phys.Lett.B,1990,237:599[22] Whitlow L W,Riordan E M,Dasu S,Rock S,Bodek A.Phys.Lett.B,1992,282:475[23] Arneodo M et al(New Muon collaboration).Nucl.Phys.B,1997,483:3[arXiv:hep-ph/9610231][24] Adloff C et al(H1 collaboration).Eur.Phys.J.C,2001,21:33[arXiv:hep-ex/0012053]; Adloff C et al(H1 collaboration).Eur.Phys.J.C,2003,30:1[arXiv:hep-ex/0304003][25] Breitweg J et al(ZEUS collaboration).Eur.Phys.J.C,1999,7:609[arXiv:hep-ex/9809005]; Chekanov S et al(ZEUS collaboration).Eur.Phys.J.C,2001,21:443 Jar Xiv:hep-ex/0105090][26] Chetyrkin K G,Kniehl B A,Steinhauser M.Phys.Rev.Lett.,1997,79:2184[arXiv:hep-ph/9706430]; Bethke S.J.Phys.G,2000,26:R27[arXiv:hep-ex/0004021]; Bernreuther W,Wetzel W.Nucl.Phys.B,1982,197:228[Erratum-ibid.B,1998,513:758][27] Blumlein J,Bottcher H,Guffanti A.Nucl.Phys.B,2007,774:182[arXiv:hep-ph/0607200][28] Bethke S.Prog.Part.Nucl.Phys.,2007,58:351[arXiv:hep-ex/0606035]

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Atashbar Tehrani. Determination of the strong coupling constant using available experimental data[J]. Chinese Physics C, 2010, 34(9): 1485-1487. doi: 10.1088/1674-1137/34/9/079

Atashbar Tehrani. Determination of the strong coupling constant using available experimental data[J]. Chinese Physics C, 2010, 34(9): 1485-1487. doi: 10.1088/1674-1137/34/9/079 shu

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Received: 2010-02-08
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

Determination of the strong coupling constant using available experimental data

Corresponding author: Atashbar Tehrani,

Received Date: 2010-02-08

Accepted Date: 1900-01-01

Available Online: 2010-09-05

Abstract:

We determine the strong coupling constant α_s up to 4-loop in perturbative QCD. Testing QCD requires the measurement of α_s over ranges of energy scales. In this analysis, the value of α_s is determined from the unpolarized structure functions data points by minimizing the χ² function between the theory result and experimental data. Using perturbative QCD calculations from threshold corrections, we obtain α_s(M_Z²)=0.1139±0.0020 at N³LO which is in good agreement with the very recently results from the inclusive jet cross section in pp collisions at √s=1.96 TeV.

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Determination of the strong coupling constant using available experimental data

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