skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Charged-to-neutral meson yield ratio at ψ ( 3770 ) and $$\mathrm{{\Upsilon}}(4S)$$ revisited

Abstract

The recent precision measurement of the relative yield of $${D}^{+}{D}^{{-}}$$ and $${D}^{0}{\overline{D}}^{0}$$ meson pairs at the $${\psi}(3770)$$ peak in $${e}^{+}{e}^{{-}}$$ annihilation is about 3.7 sigma away from a straightforward theoretical estimate. It is argued that combined with an even more significant deviation of a similar ratio for the $B$ mesons at the $$\mathrm{{\Upsilon}}(4S)$$ peak, this provides an insight into the structure of heavy mesons and requires both a form factor, corresponding to their finite “size,” and a strong interaction between the mesons in the isovector state $${I}^{G}({J}^{P})={1}^{+}({1}^{{-}})$$. It is also argued that the data for the $D$ and $B$ mesons are possibly compatible with the heavy quark limit of the same meson-antimeson strong interaction in both systems.

Authors:
 [1]
  1. Univ. of Minnesota, Minneapolis, MN (United States). William I. Fine Theoretical Physics Inst. School of Physics and Astronomy; Inst. of Theoretical and Experimental Physics, Moscow (Russian Federation)
Publication Date:
Research Org.:
Univ. of Minnesota, Minneapolis, MN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1456301
Alternate Identifier(s):
OSTI ID: 1503900
Grant/Contract Number:  
SC0011842
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 97; Journal Issue: 11; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; particle production

Citation Formats

Voloshin, M. B. Charged-to-neutral meson yield ratio at ψ(3770) and $\mathrm{{\Upsilon}}(4S)$ revisited. United States: N. p., 2018. Web. doi:10.1103/physrevd.97.114023.
Voloshin, M. B. Charged-to-neutral meson yield ratio at ψ(3770) and $\mathrm{{\Upsilon}}(4S)$ revisited. United States. doi:10.1103/physrevd.97.114023.
Voloshin, M. B. Fri . "Charged-to-neutral meson yield ratio at ψ(3770) and $\mathrm{{\Upsilon}}(4S)$ revisited". United States. doi:10.1103/physrevd.97.114023.
@article{osti_1456301,
title = {Charged-to-neutral meson yield ratio at ψ(3770) and $\mathrm{{\Upsilon}}(4S)$ revisited},
author = {Voloshin, M. B.},
abstractNote = {The recent precision measurement of the relative yield of ${D}^{+}{D}^{{-}}$ and ${D}^{0}{\overline{D}}^{0}$ meson pairs at the ${\psi}(3770)$ peak in ${e}^{+}{e}^{{-}}$ annihilation is about 3.7 sigma away from a straightforward theoretical estimate. It is argued that combined with an even more significant deviation of a similar ratio for the $B$ mesons at the $\mathrm{{\Upsilon}}(4S)$ peak, this provides an insight into the structure of heavy mesons and requires both a form factor, corresponding to their finite “size,” and a strong interaction between the mesons in the isovector state ${I}^{G}({J}^{P})={1}^{+}({1}^{{-}})$. It is also argued that the data for the $D$ and $B$ mesons are possibly compatible with the heavy quark limit of the same meson-antimeson strong interaction in both systems.},
doi = {10.1103/physrevd.97.114023},
journal = {Physical Review D},
number = 11,
volume = 97,
place = {United States},
year = {2018},
month = {6}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/physrevd.97.114023

Save / Share: