Aug 6, 2013
Precision measurement of charged pion and kaon differential cross sections in e+e- annihilation at √s=10.52 GeV
Physical Review Letters
- Volume
- 111
- Number
- 6
- First page
- 062002-1
- Last page
- 062002-7
- Language
- English
- Publishing type
- Research paper (scientific journal)
- DOI
- 10.1103/PhysRevLett.111.062002
Measurements of inclusive differential cross sections for charged pion and kaon production in e+e- annihilation have been carried out at a center-of-mass energy of √s=10.52 GeV. The measurements were performed with the Belle detector at the KEKB e+e- collider using a data sample containing 113×106 e+e -→qq̄ events, where q={u,d,s,c}. We present charge-integrated differential cross sections dσh±/dz for h±={π±,K±} as a function of the relative hadron energy z=2Eh/√s from 0.2 to 0.98. The combined statistical and systematic uncertainties for π± (K±) are 4% (4%) at z∼0.6 and 15% (24%) at z∼0.9. The cross sections are the first measurements of the z dependence of pion and kaon production for z>0.7 as well as the first precision cross section measurements at a center-of-mass energy far below the Z0 resonance used by the experiments at LEP and SLC. © 2013 American Physical Society.
- Link information
-
- DOI
- https://doi.org/10.1103/PhysRevLett.111.062002
- Scopus
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84881498539&origin=inward Open access
- Scopus Citedby
- https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84881498539&origin=inward
- URL
- https://link.aps.org/doi/10.1103/PhysRevLett.111.062002
- ID information
-
- DOI : 10.1103/PhysRevLett.111.062002
- ISSN : 0031-9007
- eISSN : 1079-7114
- SCOPUS ID : 84881498539