Observation of Ds1(2536)+ -> D+ pi- K+
The Belle Collaboration: V.Balagura, et al
TL;DR
This paper reports the first observation of the decay Ds1(2536)+ -> D+ pi- K+ and analyzes the decay dynamics through helicity angle distributions, providing insights into the decay amplitudes and phase differences.
Contribution
The study presents the first observation of the decay mode Ds1(2536)+ -> D+ pi- K+ and measures helicity angle distributions to understand decay amplitude contributions.
Findings
First observation of Ds1(2536)+ -> D+ pi- K+ decay
Helicity angle distributions constrain decay amplitudes
Results based on 281 fb^-1 data sample
Abstract
We report the observation of the decay Ds1(2536)+ -> D+ pi- K+. We also measure the helicity angle distributions in the decay Ds1(2536)->D*+ K0S and thus constrain the contributions and the phase difference of D and S wave amplitudes in this decay. The results are based on a 281 fb^-1 data sample collected with the Belle detector near the Y(4S) resonance, at the KEKB asymmetric energy e+e- collider.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies · Superconducting Materials and Applications