Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-12-05
Phys.Rev.Lett.92:242001,2004; Erratum-ibid.104:199901,2010
Physics
High Energy Physics
High Energy Physics - Phenomenology
Eq. (1) corrected, numerical results slightly changed
Scientific paper
10.1103/PhysRevLett.92.242001
We sum up the next-to-leading logarithmic corrections to the heavy-quarkonium hyperfine splitting using the nonrelativistic renormalization group. On the basis of this result, we predict the mass of the $\eta_b$ meson to be $M(\eta_b)=9419 \pm 11 {(\rm th)} {}^{+9}_{-8} (\delta\alpha_s) MeV$. The experimental measurement of $M(\eta_b)$ with a few MeV error would be sufficient to determine $\alpha_s(M_Z)$ with an accuracy of $\pm 0.003$. The use of the nonrelativistic renormalization group is mandatory to reproduce the experimental value of the hyperfine splitting in charmonium.
Kniehl Bernd A.
Penin Alexander A.
Pineda Antonio
Smirnov Vladimir A.
Steinhauser Matthias
No associations
LandOfFree
$M(η_b)$ and $α_s$ from Nonrelativistic Renormalization Group does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with $M(η_b)$ and $α_s$ from Nonrelativistic Renormalization Group, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and $M(η_b)$ and $α_s$ from Nonrelativistic Renormalization Group will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-474804