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]	Qing-Wu Wang , Xiao-Fu Łü , Hua-Zhong Guo . $ {\boldsymbol\rho\bf\to \boldsymbol\pi\boldsymbol\pi }$ Hadronic Decay in the Nambu-Jona-Lasinio Model: Mass-Width Interplay and Beyond-RPA Corrections. Chinese Physics C, 2026, 50(2): 1-7.
[2]	Ayan Banerjee , Indrani Karar , Javlon Rayimbaev , Inomjon Ibragimov , Sardor Murodov , Sokhibjan Muminov , Sardor Jumaniyozov . Existence of quark stars in gravity's Rainbow: the significance of strongly interacting quark matter. Chinese Physics C, 2026, 50(2): 1-12.
[3]	Wen-Chao Dai , Jie-Dong Jiang , Yin Fan , Xiao Liu , Peng-Cheng Chu , Xi-Jun Wu , Xiao-Hua Li . Systematic study of α decay half-life within cluster-formation model. Chinese Physics C, 2026, 50(1): 014103. doi: 10.1088/1674-1137/ae042c
[4]	Wentao Zeng , Zehao Lin , Yiran Wang , Shuangquan Zhang , Jinniu Hu , Ying Zhang . Resonant states in the Schrödinger equation solved by the Green's function method. Chinese Physics C, 2026, 50(2): 1-10.
[5]	Jin-Yu Huo , Rui Chen . Exploring the two-body strong decay properties of the possible ${\boldsymbol\Lambda_{\boldsymbol c}\boldsymbol K^{}}$ and ${\boldsymbol\Sigma_{\boldsymbol c}\boldsymbol K^{()}}$ molecules. Chinese Physics C, 2025, 49(10): 103108. doi: 10.1088/1674-1137/adec4e
[6]	Muhammad Farhan Taseer , Subhash Singha . Impact of particle production mechanisms on pseudorapidity distribution and directed flow in Au+Au and Cu+Cu collisions at ${ \sqrt{{\boldsymbol s}_{\boldsymbol{ NN}}}}$ = 19.6 GeV using AMPT model. Chinese Physics C, 2025, 49(10): 104101. doi: 10.1088/1674-1137/ade660
[7]	Hao Yang , Zhi-Qing Zhang , You-Ya Yang , Peng Li . $ {{\boldsymbol D}^*_{ {({\boldsymbol s})}}{\bf\to} {\boldsymbol P} }$ form factors and their applications to semi-leptonic and non-leptonic weak decays. Chinese Physics C, 2025, 49(12): 123104. doi: 10.1088/1674-1137/adfb5d
[8]	. Investigation of the α-decay half-lives for even-even nuclei within a deformed two-potential approach. Chinese Physics C, 2025, 49(12): 124111. doi: 10.1088/1674-1137/ae0430
[9]	. Bayesian and Monte Carlo approaches to estimating uncertainty for the measurement of the bound-state β^- decay of ²⁰⁵Tl⁸¹⁺. Chinese Physics C, 2025, 49(11): 114001. doi: 10.1088/1674-1137/ade956
[10]	Yingjie Fan , Xuewen Liu , Ning Zhou . Characterizing the CJPL’s site-specific neutrino floor as the neutrino fog boundary. Chinese Physics C, 2025, 49(10): 103001. doi: 10.1088/1674-1137/ade65e
[11]	Yang Liu , Rong Wang , Zaiba Mushtaq , Ye Tian , Xionghong He , Hao Qiu , Xurong Chen . Simulation of dark scalar particle sensitivity in η rare decay channels at HIAF. Chinese Physics C, 2025, 49(3): 034103. doi: 10.1088/1674-1137/ad9d1b
[12]	. Search for the lepton number violation decay ω→π⁺π⁺e⁻e⁻+c.c.. Chinese Physics C, 2025, 49(10): 103002. doi: 10.1088/1674-1137/ade955
[13]	Xiaobin Wang , Lei Chang . Unveiling the inner structure of the Pion’s first excited state. Chinese Physics C, 2025, 49(12): 123107. doi: 10.1088/1674-1137/adfc34
[14]	Che-Hao Liu , Van Que Tran , Qiaoyi Wen , Fanrong Xu , Tzu-Chiang Yuan . New contributions to b → sγ in the minimal G2HDM. Chinese Physics C, 2025, 49(8): 083107. doi: 10.1088/1674-1137/add873
[15]	Xi-Liang Yuan , Chao Wang , Zhuang-Dong Bai , Gang Lü . Role and contribution of the resonance effect for the decay process of ${ \bar {\boldsymbol B}^{\bf 0}_{\boldsymbol s} \boldsymbol\rightarrow \boldsymbol\pi^{+}\boldsymbol\pi^{-}{\boldsymbol P}}$. Chinese Physics C, 2025, 49(11): 113103. doi: 10.1088/1674-1137/ade6d8
[16]	Zhuoyi Pang , Jian-Hui Zhang , Dian-Jun Zhao . Moments from momentum derivatives in lattice QCD. Chinese Physics C, 2025, 49(10): 101001. doi: 10.1088/1674-1137/aded04
[17]	Yang-Yang Xu , De-Xing Zhu , You-Tian Zou , Xi-Jun Wu , Biao He , Xiao-Hua Li . Systematic study on α-decay half-lives of uranium isotopes with a screened electrostatic barrier. Chinese Physics C, 2022, 46(11): 114103. doi: 10.1088/1674-1137/ac7fe8
[18]	SHEN Shui-Fa , YU Xiao-Han . Decay of ⁸³Sr and Discussion of Its Daughter's Band Structures. Chinese Physics C, 2004, 28(S1): 78-80.
[19]	Xu Jianming . Matching Problem of Lattice with Transverse Coupling. Chinese Physics C, 1995, 19(1): 73-81.
[20]	BES Collaboration . Experimental Study of Resonance f₂(1270) in the J/ψ Hadronic Decay. Chinese Physics C, 1993, 17(2): 97-106.

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(3694)
PDF Downloads(380)
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

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.

HTML

Reference (1)

Status of the lattice and τ decay determinations of α_s

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article