Radial excitations of heavy-light mesons from QCD sum rules

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10284767" target="_blank" >RIV/00216208:11320/14:10284767 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1140/epjc/s10052-014-2979-z" target="_blank" >http://dx.doi.org/10.1140/epjc/s10052-014-2979-z</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjc/s10052-014-2979-z" target="_blank" >10.1140/epjc/s10052-014-2979-z</a>

Result language

angličtina

Original language name

Radial excitations of heavy-light mesons from QCD sum rules

Original language description

QCD sum rules are commonly used to predict the characteristics of ground-state hadrons. We demonstrate that two-point sum rules for the decay constants of charmed () and bottom () mesons can also be modified to estimate the decay constants of the first radial excitations, and , respectively, provided the masses of these resonances are used as an input. For the radially excited charmed mesons we use available experimental data, whereas the masses of analogous bottom mesons are estimated from the heavy-quark limit. The decay constants predicted for the radial excitations of heavy-light pseudoscalar and vector mesons are systematically smaller than those of the ground states and we comment on the possible origin of this difference. Our results can be usedin the sum rule calculations of heavy-to-light form factors and in the factorization approximations for nonleptonic -meson decays where the decay constants of charmed mesons enter as input parameters.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BF - Elementary particle theory and high energy physics

OECD FORD branch

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Project

<a href="/en/project/LG13031" target="_blank" >LG13031: Collaboration of the Czech Republic with CERN</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2014

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

European Physical Journal C

ISSN

1434-6044

e-ISSN

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Volume of the periodical

74

Issue of the periodical within the volume

8

Country of publishing house

DE - GERMANY

Number of pages

25

Pages from-to

1-25

UT code for WoS article

000340574000001

EID of the result in the Scopus database

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