Measurement of the masses and widths of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi mathvariant="normal">Σ</mml:mi><mml:mi>c</mml:mi></mml:msub><mml:mo stretchy="false">(</mml:mo><mml:mn>2455</mml:mn><mml:msup><mml:mo stretchy="false">)</mml:mo><mml:mo>+</mml:mo></mml:msup></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi mathvariant="normal">Σ</mml:mi><mml:mi>c</mml:mi></mml:msub><mml:…

Using 980 fb−1 of data collected with the Belle detector operating at KEKB asymmetric-energy e+e− collider, we report measurements masses, and first instrinsic widths, Σc(2455)+ Σc(2520)+ charmed baryons. We find M(Σc(2455)+)−M(Λc+)=166.17±0.05−0.07+0.16 MeV/c2, Γ(Σc(2455)+)=2.3±0.3±0.3 M(Σc(2520)+)−M(Λc+)=230.9±0.5−0.1+0.5 Γ(Σc(2520)+)=17.2−2.1−0.7+2.3+3.1 where uncertainties are statistical systematic, respectively. These can be used to test models underlying quark structure Σc states.Received 12 July 2021Accepted 11 August 2021DOI:https://doi.org/10.1103/PhysRevD.104.052003Published by American Physical Society under terms Creative Commons Attribution 4.0 International license. Further distribution this work must maintain attribution author(s) published article’s title, journal citation, DOI. Funded SCOAP3.Published SocietyPhysics Subject Headings (PhySH)Research AreasParticle decaysParticles & Fields