The quark condensate from K(e(4)) decays.
نویسندگان
چکیده
We show that, independently of the size of the quark condensate, chiral symmetry correlates the two S-wave pipi scattering lengths. In view of this constraint, the new precision data on K(e(4)) decay allow a remarkably accurate determination of these quantities. The result confirms the hypothesis that the quark condensate is the leading order parameter.
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عنوان ژورنال:
- Physical review letters
دوره 86 22 شماره
صفحات -
تاریخ انتشار 2001