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Автор Johan Bijnens
Автор Karim Ghorbani
Дата выпуска 2007-11-01
dc.description We calculate the decay η3π at next-to-next-to-leading order or order p<sup>6</sup> in Chiral Perturbation Theory. The corrections are somewhat larger than was indicated by dispersive estimates. We present numerical results for the Dalitz plot parameters, the ratio r of the neutral to charged decay and the total decay rate. In addition we derive an inequality between the slope parameters of the charged and neutral decay. The experimental charged decay rate leads to central values for the isospin breaking quantities R = 42.2 and Q = 23.2.
Формат application.pdf
Издатель Institute of Physics Publishing
Название η3π at two loops in Chiral Perturbation Theory
Тип paper
DOI 10.1088/1126-6708/2007/11/030
Electronic ISSN 1029- 8479
Print ISSN 1126-6708
Журнал Journal of High Energy Physics
Том 2007
Первая страница 30
Последняя страница 030
Аффилиация Johan Bijnens; Department of Theoretical Physics, Lund University, Sölvegatan 14A, S 223-62 Lund, Sweden
Аффилиация Karim Ghorbani; Department of Theoretical Physics, Lund University, Sölvegatan 14A, S 223-62 Lund, Sweden
Выпуск 11

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