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Yelton, J.*; 谷田 聖; Belle Collaboration*; 他205名*
Physical Review D, 104(5), p.052003_1 - 052003_8, 2021/09
被引用回数:4 パーセンタイル:37.94(Astronomy & Astrophysics)Using 980 of data with the Belle detector operating at the KEKB asymmetric-energy collider, we report the measurements of the masses, and the first measurements of the instrinsic widths, of the and charmed baryons. We find , , , and , where the uncertainties are statistical and systematic, respectively. These measurements can be used to test models of the underlying quark structure of the states.
Yelton, J.*; 谷田 聖; Belle Collaboration*; 他208名*
Physical Review D, 102(7), p.071103_1 - 071103_8, 2020/10
被引用回数:8 パーセンタイル:51.82(Astronomy & Astrophysics)Using 980 fb of data collected with the Belle detector operating at the KEKB asymmetric-energy collider, we report a study of the electromagnetic decays of excited and . A clear signal (8.6 standard deviations) is observed for , and we measure: . We also present evidence (3.8 standard deviations) for the similar decay of the and measure: . The first quoted uncertainties are statistical and the second systematic. We find no hint of the analogous decays of the and baryons and set upper limits at the 90% confidence level of: and Approximate values of the partial widths of the decays are extracted, which can be used to discriminate between models of the underlying quark structure of these excited states.
Yelton, J.*; 谷田 聖; Belle Collaboration*; 他190名*
Physical Review Letters, 121(5), p.052003_1 - 052003_7, 2018/08
被引用回数:32 パーセンタイル:85.53(Physics, Multidisciplinary)Using data recorded with the Belle detector, we observe a new excited hyperon, an candidate decaying into and with a mass of and a width of . The is seen primarily in , and decays.
Yelton, J.*; 谷田 聖; Belle Collaboration*; 他177名*
Physical Review D, 97(5), p.051102_1 - 051102_6, 2018/03
被引用回数:65 パーセンタイル:95.2(Astronomy & Astrophysics)Using the entire Belle data sample of 980 of collisions, we present the results of a study of excited charmed baryons in the decay mode . We show confirmation of four of the five narrow states reported by the LHCb Collaboration: the , , , and .
Yelton, J.*; 谷田 聖; Belle Collaboration*; 他187名*
Physical Review D, 97(3), p.032001_1 - 032001_8, 2018/02
被引用回数:10 パーセンタイル:48.48(Astronomy & Astrophysics)Using a data sample of 980 of annihilation data taken with the Belle detector operating at the KEKB asymmetric-energy collider, we report the results of a study of the decays of the charmed baryon into hadronic final states. We report the most precise measurements to date of the relative branching fractions of the into , , , and , as well as the first measurements of the branching fractions of the into , , and , all with respect to the decay. In addition, we investigate the resonant substructure of these modes. Finally, we present a limit on the branching fraction for the decay .
Yelton, J.*; 谷田 聖; Belle Collaboration*; 他155名*
Physical Review D, 94(5), p.052011_1 - 052011_14, 2016/09
被引用回数:58 パーセンタイル:92.07(Astronomy & Astrophysics)Using a data sample of 980 fb of annihilation data taken with the Belle detector operating at the KEKB asymmetric-energy collider, we report the results of a study of excited states that decay, via the emission of photons and/or charged pions, into or ground state charmed-strange baryons. We present new measurements of the masses of all members of the , , , , isodoublets, measurements of the intrinsic widths of those that decay strongly, and evidence of previously unknown transitions.