Using an electron-positron collision data sample corresponding to an integrated luminosity of 2.93 fb(-1) collected with the BESIII detector at a center-of-mass energy of 3.773 GeV, we search for the baryon-number and lepton-number violating decays D-0 -> (p) over bare(+) and D-0 -> pe(-). No obvious signals are found with the current statistics. The upper limits on the branching fractions for D-0 -> (p) over bare(+) and D-0 -> pe(- )are set to be 1.2 x 10(-6) and 2.2 x 10(-6) at 90% confidence level, respectively.

Search for baryon- and lepton-number violating decays D-0 -> (p)over-bare(+) and D-0 -> pe(-)

Amoroso, A;Bianchi, F;Bortone, A;Destefanis, M;De Mori, F;Fava, L;Greco, M;Hu, JF;Lavezzi, L;Maggiora, M;Marcello, S;Rivetti, A;Sosio, S;Spataro, S;Yan, L;
2022

Abstract

Using an electron-positron collision data sample corresponding to an integrated luminosity of 2.93 fb(-1) collected with the BESIII detector at a center-of-mass energy of 3.773 GeV, we search for the baryon-number and lepton-number violating decays D-0 -> (p) over bare(+) and D-0 -> pe(-). No obvious signals are found with the current statistics. The upper limits on the branching fractions for D-0 -> (p) over bare(+) and D-0 -> pe(- )are set to be 1.2 x 10(-6) and 2.2 x 10(-6) at 90% confidence level, respectively.
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