Neutral K1(890) and ρ0 meson production in e+e− annihilation at <math><mtext>;s</mtext><mtext>=29</mtext><mtext>GeV</mtext></math>期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

按检索

Neutral K¹(890) and ρ⁰ meson production in e⁺e⁻ annihilation at $;s =29 GeV$

Authors:	M Derrick P Kooijman JS Loos B Musgrave LE Price J Schlereth K Sugano JM Weiss DE Wood P Baringer D Blockus B Brabson SW Gray C Jung H Neal H Ogren DR Rust M Valdata-Nappi B Cork

Institution:	Argonne National Laboratory, Argonne, IL 60439, USA;Indiana University, Bloomington, IN 47405, USA;University of Michigan, Ann Arbor, MI 48109, USA

Abstract:	The production of neutral K¹(890) and ρ⁰ mesons was studied in e⁺e^? annihilation at $s =29 GeV$ using the High Resolution Spectrometer at PEP. Differential cross sections are presented as a function of the scaled energy variable z and compared to π⁰ and K⁰ production. The measured multiplicities are 0.84±0.08 ?⁰ mesons and $0.57±0.09 K^{10} (890)$ mesons per event for a meson momentum greater than 725 MeV/c. The ratios of vector meson to pseudoscalar meson production for (u,d), s and c quark are compared to predictions of the Lund model.

Keywords:
本文献已被 ScienceDirect 等数据库收录！