Search for the decay D+s → p¯pe+νe

• Using a 3.19  fb−1 data sample collected at the √s=4.178  GeV with the BESIII detector, we search for the rare decay D+s → p¯pe+νe. No significant signal is observed, and an upper limit of B(D+s → p¯pe+νe)<2.0×10−4 is set at the 90% confidence level. This measurement is useful input in understanding the baryonic transition of D+s mesons.

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NATURVETENSKAP  -- Fysik -- Subatomär fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Subatomic Physics (hsv//eng)

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