Determination of form-factor parameters in the decays K-→μ-νπ0 and K-→e-νπ0

被引:0
作者
Artemov, VM [1 ]
Volkov, AD [1 ]
Emel'yanko, GA [1 ]
Zalikhanov, BZ [1 ]
Komissarov, EV [1 ]
Kurbatov, VS [1 ]
Serdyuk, VZ [1 ]
Sidorkin, VV [1 ]
Silin, IN [1 ]
Yashchenko, SV [1 ]
Bolotov, VN [1 ]
Volkov, SA [1 ]
Gushchin, EN [1 ]
Klimenko, VS [1 ]
Laptev, SV [1 ]
Semenyuk, IN [1 ]
Shmatkov, VL [1 ]
Voskanyan, AV [1 ]
Ketikian, AJ [1 ]
Konstantinov, VF [1 ]
机构
[1] Joint Inst Nucl Res, Dubna 141980, Moscow Oblast, Russia
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中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
The decays K- --> mu(3)(-)V pi(o)(K-mu 3) and K- --> e-v pi(o)(K-e3) observed with the ISTRA-M detector operating at the 70-GeV Protvino accelerator are analyzed. Under the assumption of mu-e universality, a simultaneous fit to K-mu 3 and K-e3 data yields the values of lambda(+)= 0.017 +/- 0.006 and lambda(o) = 0.057 +/- 0.017 for the form-factor parameters.
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页码:2023 / 2028
页数:6
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