Journal
PHYSICAL REVIEW D
Volume 86, Issue 9, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.86.094002
Keywords
-
Funding
- Office of Nuclear Physics of the U.S. Department of Energy [DE-FG02-94ER40818, DE-FG02-06ER41449]
- European Community's Marie-Curie Research Networks [MRTN-CT-2006-035482, MRTN-CT-2006-035505, PITN-GA-2010-264564]
- U.S. National Science Foundation [NSF-PHY-0969510]
- Marie Curie Fellowship [PIOF-GA-2009-251174]
- Alexander von Humboldt foundation
- MISTI global seed funds
Ask authors/readers for more resources
We consider cumulant moments (cumulants) of the thrust distribution using predictions of the full spectrum for thrust including O(alpha(3)(s)) fixed order results, resummation of singular (NLL)-L-3 logarithmic contributions, and a class of leading power corrections in a renormalon-free scheme. From a global fit to the first thrust moment we extract the strong coupling and the leading power correction matrix element Omega(1). We obtain alpha(s)(m(Z)) = 0.1140 +/- (0.0004)(exp) +/- (0.0013)(hadr) +/- (0.0007)(pert), where the 1-sigma uncertainties are experimental, from hadronization (related to Omega(1)) and perturbative, respectively, and Omega(1) = 0.377 +/- (0.044)(exp) +/- (0.039)(pert) GeV. The nth thrust cumulants for n >= 2 are completely insensitive to Omega(1), and therefore a good instrument for extracting information on higher order power corrections, Omega'(n)/Q(n), from moment data. We find ((Omega) over tilde '2)(1/2) = 0.74 +/- (0.11)(exp) +/- (0.09)(pert) GeV.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available