Search for the K L 0 → π 0 ν ṽ decay at the INEP U-70 accelerator: The KLOD project

A. S. Kurilin, S. N. Bazylev, V. A. Bednyakov, A. G. Dolbilov, M. Yu. Doroshenko, E. S. Kuzmin, S. V. Podolsky, A. A. Semenov,Yu. Yu. Stepanenko, V. V. Tikhomirov, V. N. Bolotov, V. A. Duk, A. A. Khudyakov,V. A. Lebedev,A. I. Makarov,A. Yu. Polyarush,G. I. Britvich,Yu. P. Guz, F. N. Novoskoltsev, V. F. Obraztsov, A. P. Ostankov, V. K. Semenov,O. P. Yushchenko

Physics of Particles and Nuclei Letters（2010）

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摘要

The rare decay K L 0 → π 0 ν ṽ branching ratio measurement is one of the clearest Standard Model test. Calculations based on the SM predict Br( K L 0 → π 0 ν ṽ ) ≈ 2.8 × 10 −11 , but the most accurate experimental value Br( K L 0 → π 0 ν ṽ ) < 6.7 × 10 −8 (90

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关键词

Nucleus Letter,Rare Decay,Neutral Beam,Background Suppression,Decay Vertex

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