Status of the lattice and τ decay determinations of α<SUB>s</SUB>

K. Maltman

doi:10.1088/1674-1137/34/9/040

Chinese Physics C> 2010, Vol. 34> Issue(9) : 1350-1354 DOI: 10.1088/1674-1137/34/9/040

Status of the lattice and τ decay determinations of α_s

K. Maltman ^,

York University, 4700 Keele St., Toronto, ON CANADA M3J 1P3

Abstract
HTML
Reference
Related

PDF

Abstract：
The two highest precision determinations of α_s(M_Z²), that based on the analysis of short-distance-sensitive lattice observables, and that based on an analysis of hadronic τ decay data, have, until very recently, given results which are not in good agreement. I review new versions of these analyses which bring the two determinations into excellent agreement, and discuss prospects for additional future improvements.

References

[1]

. Mason Q et al. Phys. Rev. Lett., 2005, 95: 0520022. Davier M et al. Eur. Phys. J. C, 2008, 56: 305-3223. Davies C T H et al (HPQCD collaboration). Phys. Rev. D,2008, 78: 1145074. Maltman K, Leinweber D, Moran P, Sternbeck A. Phys.Rev. D, 2008, 78: 1145045. Ioffe B L, Zyablyuk K N. Eur. Phys. J. C, 2003, 27: 229-241; Io e B L. Phys. Atom. Nucl., 2003, 66: 30-436. Schael S et al (ALEPH collaboration). Phys. Rep., 2005,421: 191-2847. Ackerstaff K et al (OPAL collaboration). Eur. Phys. J. C,1999, 7: 571-5938. Tsai Y-S. Phys. Rev. D, 1971, 4: 28219. Baikov P A, Chetyrkin K G, Kuhn J H. Phys. Rev. Lett.,2008, 101: 01200210. Cata O, Golterman M, Peris S. Phys. Rev. D, 2008, 77:093006; ibid., 2009, 79: 05300211. Jamin M, Beneke M. JHEP, 2008, 0809: 04412. Maltman K, Yavin T. Phys. Rev. D, 2008, 78: 094020;Nucl. Phys. Proc. Supp., 2009, 189: 66-7113. Narison S. Phys. Lett. B, 2009, 673: 30-3614. Menke S. arXiv:0904.179615. Maltman K, Yavin T. Nucl. Phys. B Proc. Suppl., 2009,189: 66-7116. Maltman K. Phys. Lett. B, 1998, 440: 367-374; Nucl.Phys. Proc. Suppl., 2003, 123: 149-166

[1]	Volker Koch , Soeren Schlichting , Vladimir Skokov , Paul Sorensen , Jim Thomas , Sergei Voloshin , Gang Wang , Ho-Ung Yee . Status of the chiral magnetic effect and collisions of isobars. Chinese Physics C, 2017, 41(7): 072001. doi: 10.1088/1674-1137/41/7/072001
[2]	J. H. Field . A comparison of direct and indirect determinations of the masses of the Higgs Boson and the top quark. Chinese Physics C, 2017, 41(10): 103001. doi: 10.1088/1674-1137/41/10/103001
[3]	LIU Sheng-Jin , HUANG Tao , OUYANG Hua-Fu , ZHAO Fu-Xiang , XIAO Yong-Chuan , CAO Xiu-Xia , XUE Kang-Jia , ZHANG Jun-Song , XU Tao-Guang , LI Fang , LU Yan-Hua , LI Gang , YANG Lei , LI Yi , . Status of CSNS H^- ion source. Chinese Physics C, 2015, 39(5): 057008. doi: 10.1088/1674-1137/39/5/057008
[4]	FU Zi-Wen . Lattice calculation of the κ meson. Chinese Physics C, 2012, 36(6): 489-497 . doi: 10.1088/1674-1137/36/6/003
[5]	G. Eichmann , A. Krassnigg , D. Nicmorus . Hadron properties from QCD bound-state equations: A status report. Chinese Physics C, 2010, 34(9): 1175-1180.
[6]	Lee Roberts , on behalf , of the , New Muon . Status of the Fermilab muon (g－2) experiment. Chinese Physics C, 2010, 34(6): 741-744. doi: 10.1088/1674-1137/34/6/021
[7]	Carloni Calame . Status and accuracy of the Monte Carlo generators for luminosity measurements. Chinese Physics C, 2010, 34(6): 883-888. doi: 10.1088/1674-1137/34/6/045
[8]	for the . Status of KLOE-2. Chinese Physics C, 2010, 34(6): 918-923. doi: 10.1088/1674-1137/34/6/051
[9]	Young Bing-Lin . Current status of neutrino physics. Chinese Physics C, 2010, 34(2): 287-298. doi: 10.1088/1674-1137/34/2/026
[10]	WANG Guo-Li , ZHANG Jin-Mei , WANG Zhi-Hui . Relativistic studies of the decay constants of S wave and P wave mesons. Chinese Physics C, 2010, 34(2): 274-276. doi: 10.1088/1674-1137/34/2/024
[11]	WEI Dai-Hui , YANG Yong-Xu . Pseudoscalar mixing in J/ψ and ψ(2S) decay. Chinese Physics C, 2010, 34(12): 1785-1790. doi: 10.1088/1674-1137/34/12/002
[12]	Hiroyuki Kamano . Study of excited nucleon states at EBAC: status and plans. Chinese Physics C, 2009, 33(12): 1077-1084. doi: 10.1088/1674-1137/33/12/006
[13]	R. W. Gothe . Nucleon transition form factors at JLab: status and outlook. Chinese Physics C, 2009, 33(12): 1216-1221. doi: 10.1088/1674-1137/33/12/026
[14]	GUO Fen-Kun , SHENG Peng-Nian , JIAN Huan-Qing , PING Rong-Gang . Decay Υ(3S)→Υ(1S)π＋π－and a Possible bbqq State. Chinese Physics C, 2005, 29(12): 1121-1124.
[15]	MO Xiao-Hu , ZHU Yong-Sheng , YUAN Chang-Zheng , FU Cheng-Dong , LI Gang . Determination of ψ(2S) Total Number by Inclusive Hadronic Decay. Chinese Physics C, 2004, 28(5): 455-462.
[16]	LU Gong-Ru , YU Xian-Qiao . Inclusive b→sτ⁺τ^－ Decay in Two Higgs Doublet Model Ⅲ. Chinese Physics C, 2003, 27(12): 1067-1069.
[17]	Li Xinhua , Gu Yifan . Comments on the Ratio of Hadronic Decay Rates of ψ(2S)to J/ψ. Chinese Physics C, 1998, 22(4): 293-298.
[18]	BES collaboration . Study of the Decay τ±→π+π-π±υτ at s=4.03 GeV. Chinese Physics C, 1995, 19(5): 385-392.
[19]	BES Collaboration . Study of ψ(2S) Decay to τ Lepton Pairs. Chinese Physics C, 1995, 19(7): 577-584.
[20]	CHEN Qi-Zhou , LI Zhi-Bing , HE Bao-Peng , LUO Xiang-Qian , GUO Shuo-Hong . THE WEAK INTERACTION MATRIX ELEMENTS OF │ΔS│=2 ON LATTICE. Chinese Physics C, 1988, 12(4): 459-464.

Access

Get Citation

K. Maltman. Status of the lattice and τ decay determinations of α_s[J]. Chinese Physics C, 2010, 34(9): 1350-1354. doi: 10.1088/1674-1137/34/9/040

K. Maltman. Status of the lattice and τ decay determinations of α_s[J]. Chinese Physics C, 2010, 34(9): 1350-1354. doi: 10.1088/1674-1137/34/9/040 shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

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

Article Metric

Article Views(2372)
PDF Downloads(379)
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, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Status of the lattice and τ decay determinations of α_s

K. Maltman ^,

Corresponding author: K. Maltman,

York University, 4700 Keele St., Toronto, ON CANADA M3J 1P3

Received Date: 2010-02-08
Accepted Date: 1900-01-01
Available Online: 2010-09-05

Abstract:

The two highest precision determinations of α_s(M_Z²), that based on the analysis of short-distance-sensitive lattice observables, and that based on an analysis of hadronic τ decay data, have, until very recently, given results which are not in good agreement. I review new versions of these analyses which bring the two determinations into excellent agreement, and discuss prospects for additional future improvements.