Dalitz plot structure in D(0) -> pi(+)pi(-)pi(0)

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题名:	Dalitz plot structure in D(0) -> pi(+)pi(-)pi(0)
作者:	Bhattacharya,B;Chiang,CW;Rosner,JL
贡献者:	物理學系
日期:	2010
上传时间:	2012-06-11 10:42:18 (UTC+8)
出版者:	國立中央大學
摘要:	The BABAR Collaboration has pointed out that D(0) -> pi(+)pi(-)pi(0) is dominated by an isospin-zero final state, leading to nearly complete depletion of the Dalitz plot along all three diagonals. In flavor-SU(3) approaches to charmed particle decays to a light vector and a light pseudoscalar particle, this behavior is seen, but does not appear to have a fundamental origin. Instead, it arises as a result of approximate cancellation of higher-isospin combinations of several types of amplitudes: color-favored tree, color-suppressed tree, and exchange. Interpretation in terms of a direct-channel effect would require an exotic resonance, with spin, parity, and charge-conjugation eigenvalues J(PC) = 0(--)
關聯:	PHYSICAL REVIEW D
显示于类别:	[物理學系] 期刊論文

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