We report the measurement of the baryonic B decay B−→Σ++cp⎯⎯π−π−. Using a data sample of 467×106 BB⎯⎯⎯ pairs collected with the BABAR detector at the PEP-II storage ring at SLAC, the measured branching fraction is (2.98±0.16(stat)±0.15(syst)±0.77(Λc))×10−4, where the last error is due to the uncertainty in ℬ(Λ+c→pK−π+). The data suggest the existence of resonant subchannels B−→Λc(2595)+p⎯⎯π− and, possibly, B−→Σ++cΔ⎯⎯⎯−−π−. We see unexplained structures in m(Σ++cπ−π−) at 3.25  GeV/c2, 3.8  GeV/c2, and 4.2  GeV/c2.

Lees, J.P., Poireau, V., Tisserand, V., Tico, J.G., Grauges, E., Palano, A., et al. (2012). Study of the baryonic B decay B- -> Sigma(++)(c) (p)over-bar pi(-)pi(-). PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 86(9), 1-8 [10.1103/PhysRevD.86.091102].

Study of the baryonic B decay B- -> Sigma(++)(c) (p)over-bar pi(-)pi(-)

PATRIGNANI, CLAUDIA;
2012

Abstract

We report the measurement of the baryonic B decay B−→Σ++cp⎯⎯π−π−. Using a data sample of 467×106 BB⎯⎯⎯ pairs collected with the BABAR detector at the PEP-II storage ring at SLAC, the measured branching fraction is (2.98±0.16(stat)±0.15(syst)±0.77(Λc))×10−4, where the last error is due to the uncertainty in ℬ(Λ+c→pK−π+). The data suggest the existence of resonant subchannels B−→Λc(2595)+p⎯⎯π− and, possibly, B−→Σ++cΔ⎯⎯⎯−−π−. We see unexplained structures in m(Σ++cπ−π−) at 3.25  GeV/c2, 3.8  GeV/c2, and 4.2  GeV/c2.
2012
Lees, J.P., Poireau, V., Tisserand, V., Tico, J.G., Grauges, E., Palano, A., et al. (2012). Study of the baryonic B decay B- -> Sigma(++)(c) (p)over-bar pi(-)pi(-). PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 86(9), 1-8 [10.1103/PhysRevD.86.091102].
Lees, J. P.; Poireau, V.; Tisserand, V.; Tico, J. Garra; Grauges, E.; Palano, A.; Eigen, G.; Stugu, B.; Brown, D. N.; Kerth, L. T.; Kolomensky, Yu. G....espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/537414
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