Measurement of ψ(3770) parameters with KEDR detector at VEPP-4M.

被引：0
|
作者：
Todyshev, Korneliy Yu. [1 ]
机构：
[1] Budker Inst Nucl Phys, Novosibirsk, Russia
来源：
35TH INTERNATIONAL CONFERENCE OF HIGH ENERGY PHYSICS (ICHEP 2010) | 2010年
关键词：
E&E-ANNIHILATION;
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暂无
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We present a measurement of the mass and total width of the psi (3770) meson. Results were obtained using data collected with the KEDR detector at the electron-positron accelerator complex VEPP-4M. We suggest a consistent way to describe the psi (3770) lineshape which includes interference between resonant and non-resonant D (D) over bar production. The results are : M-psi(3770) = 3778.0(-1.5)(+ 1.6) (+ 0.6)(-0.7) MeV, Gamma(psi)(3770) = 22.4(-3.4)(+3.9) (+0.6)(-0.5) MeV.
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页数：3
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