Using 6.32 fb(-1) of electron-positron collision data recorded by the BESIII detector at center-of-mass energies between 4.178 and 4.226 GeV, we present the first search for the decay D-s(+) -> a(0)(980)(0)e(+)nu(e), a(0)(980)(0) -> pi(0)eta, which could proceed via a(0)(980) - f(0)(980) mixing. No significant signal is observed. An upper limit of 1.2 x 10(-4) at the 90% confidence level is set on the product of the branching fractions of D-s(+) -> a(0)(980)(0)e(+)nu(e) and a 0(980)(0) -> pi(0)eta decays.

Search for the decay D+s→a0(980)0e+νe

A. Amoroso;F. Bianchi;A. Bortone;M. Destefanis;F. De Mori;M. Greco;L. Lavezzi;M. Maggiora;S. Marcello;M. Rolo;S. Sosio;S. Spataro;
2021-01-01

Abstract

Using 6.32 fb(-1) of electron-positron collision data recorded by the BESIII detector at center-of-mass energies between 4.178 and 4.226 GeV, we present the first search for the decay D-s(+) -> a(0)(980)(0)e(+)nu(e), a(0)(980)(0) -> pi(0)eta, which could proceed via a(0)(980) - f(0)(980) mixing. No significant signal is observed. An upper limit of 1.2 x 10(-4) at the 90% confidence level is set on the product of the branching fractions of D-s(+) -> a(0)(980)(0)e(+)nu(e) and a 0(980)(0) -> pi(0)eta decays.
2021
103
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1
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M. Ablikim; M.???N. Achasov; P. Adlarson; S. Ahmed; M. Albrecht; R. Aliberti; A. Amoroso; M.???R. An; Q. An; X.???H. Bai; Y. Bai; O. Bakina; R. Baldin...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1887832
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