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Journal Articles

Measurement of the branching fraction of $$B rightarrow D^{(*)}pi ellnu$$ at Belle using hadronic tagging in fully reconstructed events

Vossen, A.*; Tanida, Kiyoshi; Belle Collaboration*; 164 of others*

Physical Review D, 98(1), p.012005_1 - 012005_9, 2018/07

AA2018-0592.pdf:0.42MB

https://doi.org/10.1103/PhysRevD.98.012005
 Times Cited Count：5 Percentile：28.36(Astronomy & Astrophysics)

Journal Articles

J-PARC E19 experiment; Pentaquark $$Theta^+$$ search in hadronic reaction at J-PARC

Takahashi, Tomonori*; Ekawa, Hiroyuki; Hayakawa, Shuhei; Hosomi, Kenji; Ichikawa, Yudai; Imai, Kenichi; Sako, Hiroyuki; Sato, Susumu; Sugimura, Hitoshi; Tanida, Kiyoshi; et al.

JPS Conference Proceedings (Internet), 8, p.022011_1 - 022011_6, 2015/09

https://doi.org/10.7566/JPSCP.8.022011

Journal Articles

Search for the $$Theta^{+}$$ pentaquark via the $$pi^-prightarrow K^-X$$ reaction at 1.92 GeV/$$c$$

Shirotori, Kotaro; Imai, Kenichi; Sako, Hiroyuki; Sato, Susumu; 64 of others*

Physical Review Letters, 109(13), p.132002_1 - 132002_5, 2012/09

https://doi.org/10.1103/PhysRevLett.109.132002

The $$Theta^+$$ pentaquark baryon was searched for via the $$pi^-prightarrow K^-X$$ reaction in a missing-mass resolution of 1.4 MeV/$$c^2$$ (FWHM) at J-PARC. $$pi^-$$ meson beams were incident on the liquid hydrogen target with the beam momentum of 1.92 GeV/$$c$$. No peak structure corresponding to the $$Theta^+$$ mass was observed. The upper limit of the production cross section averaged over the scattering angle of 2$$^{circ}$$ to 15$$^{circ}$$ in the laboratory frame was obtained to be 0.26 $$mu$$b/sr in the mass region of 1.51$$-$$1.55 GeV/$$c^2$$. The upper limit of the $$Theta^+$$ decay width using the effective Lagrangian approach was obtained to be 0.72 MeV/$$c^2$$ and 3.1 MeV/$$c^2$$ for $$J^P_{Theta}=1/2^+$$ and $$J^P_{Theta}= 1/2^-$$, respectively.

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