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 ^,

Abstract
HTML
Reference
Related

PDF

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]

[1]	Jun Chen , Wenjie Hou , Taotao Qiu , Defu Hou . Comparing potential-driven DBI-inspired non-minimal kinetic coupling (Dinkic) inflation with observational data. Chinese Physics C, 2018, 42(4): 045102. doi: 10.1088/1674-1137/42/4/045102
[2]	. Retraction Notice: Impact of charm H1-ZEUS combined data and determination of the strong coupling in two different schemes (Chin. Phys. C 41(11) 113104 (2017)). Chinese Physics C, 2018, 42(8): 089001. doi: 10.1088/1674-1137/42/8/089001
[3]	Mian Yu , Hui-Ling Wei , Yi-Dan Song , Chun-Wang Ma . Experimental determination of one-and two-neutron separation energies for neutron-rich copper isotopes. Chinese Physics C, 2017, 41(9): 094001. doi: 10.1088/1674-1137/41/9/094001
[4]	Guo-Liang Yu , Zhi-Gang Wang , Zhen-Yu Li . Analysis of the strong coupling form factors of ∑_bNB and∑_cND in QCD sum rules. Chinese Physics C, 2017, 41(8): 083104. doi: 10.1088/1674-1137/41/8/083104
[5]	A. Vafaee , A. N. Khorramian . RETRACTED:Impact of charm H1-ZEUS combined data and determination of the strong coupling in two different schemes. Chinese Physics C, 2017, 41(11): 113104. doi: 10.1088/1674-1137/41/11/113104
[6]	Cao-Jie Shao , De-Yang Yu , Rong-Chun Lu , Tie-Cheng Zhao , Rui-Shi Mao , Jie Li , Ying-Li Xue , Wei Wang , Bian Yang , Ming-Wu Zhang , Jun-Liang Liu , Zhang-Yong Song , Xiao-Hong Cai , Xi-Meng Chen , Da-Yu Yin , Li-Jun Mao , Xiao-Dong Yang , Jian-Cheng Yang , You-Jin Yuan . Determination of internal-target thickness and experimental luminosity from beam energy loss at HIRFL-CSRe. Chinese Physics C, 2016, 40(11): 117002. doi: 10.1088/1674-1137/40/11/117002
[7]	HUANG Jin-Shu , SUN Jun-Feng , LU Gong-Ru , LI Hai-Bo . Properties of the coupling constants of J/ψ→VP decays. Chinese Physics C, 2013, 37(7): 073103. doi: 10.1088/1674-1137/37/7/073103
[8]	ZHANG Yuan , YU Cheng-Hui , JI Da-Heng , XU Gang , WEI Yuan-Yuan , QIN Qing . Measurement and correction of coupling in BEPCⅡ. Chinese Physics C, 2011, 35(12): 1143-1147. doi: 10.1088/1674-1137/35/12/012
[9]	LIU Hua-Chang , PENG Jun , YIN Xue-Jun , OUYANG Hua-Fu , FU Shi-Nian . RF power coupling for the CSNS DTL. Chinese Physics C, 2011, 35(1): 92-95. doi: 10.1088/1674-1137/35/1/019
[10]	BAO Tmurbagan , LI Gen-Quan , WANG Zong-Chang , YANG Xing-Qiang , LIU Guang-Zhou . Influences of the bag constant on properties of hybrid stars. Chinese Physics C, 2011, 35(6): 539-542. doi: 10.1088/1674-1137/35/6/005
[11]	J. H. Kühn . Strong coupling, charm- and bottom-quark masses from electron-positron annihilation. Chinese Physics C, 2010, 34(6): 675-679. doi: 10.1088/1674-1137/34/6/011
[12]	YIN Xue-Jun , FU Shi-Nian , PENG Jun . Emittance coupling driven by space charge in the CSNS linac. Chinese Physics C, 2009, 33(9): 811-814. doi: 10.1088/1674-1137/33/9/020
[13]	DUAN Chun-Gui , LIU Na . Influence of quark energy loss on extracting nuclear sea quark distribution from nuclear Drell-Yan experimental data. Chinese Physics C, 2009, 33(6): 411-414. doi: 10.1088/1674-1137/33/6/002
[14]	A. Deur . Study of spin sum rules (and the strong coupling constant at large distances). Chinese Physics C, 2009, 33(12): 1261-1266. doi: 10.1088/1674-1137/33/12/035
[15]	MA Xiang . Determination of event start time at BESⅢ. Chinese Physics C, 2008, 32(9): 744-749. doi: 10.1088/1674-1137/32/9/012
[16]	T. D. Lee . Model with strong γ₄ T-violation. Chinese Physics C, 2008, 32(12): 939-944. doi: 10.1088/1674-1137/32/12/001
[17]	HU Jun-Hui , WENG Yao , HU Hai-Ming , YANG Yong-Xu , GAO Yuan-Ning , WANG Jun . Measurement of Strong Coupling Constant at Low Energy Range. Chinese Physics C, 2007, 31(6): 518-522.
[18]	Huang Wenxue , Xu Xiaoji , Hu Zhiqiang , Ma Ruichang . First Experimental Determination of Half-Life for New Nuclide ⁶⁵Se. Chinese Physics C, 1996, 20(S1): 15-21.
[19]	Huang Yongzhang , Wu Gang . Transient Beam Loading Effect in Constant Gradient Accelerator Structure. Chinese Physics C, 1994, 18(Z1): 113-120.
[20]	Tian Lili , Xie Qubing . Strong γ Decays Via Three Gluons. Chinese Physics C, 1993, 17(S3): 239-247.

Access

Get Citation

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

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2010-02-08
Revised: 1900-01-01

Article Metric

Article Views(2286)
PDF Downloads(489)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, [email protected]

1.
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.

HTML

Reference (1)

Determination of the strong coupling constant using available experimental data

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, [email protected]

Email This Article