We measure the relative rate of production of orbitally excited (L = 1) states of B mesons (B**) by observing their decays into B pi (+/-). We reconstruct B mesons through semileptonic decay channels using data collected in p(p) over bar collisions at roots = 1.8 TeV. The fraction of light B mesons that are produced as L = 1B** states is measured to be 0.28 +/- 0.06(stat) +/- 0.03(syst). We also measure the collective mass of the B** states, and quantify the result by quoting the (model-dependent) mass of the lowest B** state to be m(B-1) = 5.71 +/- 0.02 GeV/c(2).

T., A., H., A., A., A., M. G., A., P., A., S. R., A., et al. (2001). Observation of orbitally excited B mesons in p(p)over-bar collisions at root s=1.8 TeV. PHYSICAL REVIEW D, 64(7) [10.1103/PhysRevD.64.072002].

Observation of orbitally excited B mesons in p(p)over-bar collisions at root s=1.8 TeV

PAOLETTI, RICCARDO;
2001-01-01

Abstract

We measure the relative rate of production of orbitally excited (L = 1) states of B mesons (B**) by observing their decays into B pi (+/-). We reconstruct B mesons through semileptonic decay channels using data collected in p(p) over bar collisions at roots = 1.8 TeV. The fraction of light B mesons that are produced as L = 1B** states is measured to be 0.28 +/- 0.06(stat) +/- 0.03(syst). We also measure the collective mass of the B** states, and quantify the result by quoting the (model-dependent) mass of the lowest B** state to be m(B-1) = 5.71 +/- 0.02 GeV/c(2).
2001
T., A., H., A., A., A., M. G., A., P., A., S. R., A., et al. (2001). Observation of orbitally excited B mesons in p(p)over-bar collisions at root s=1.8 TeV. PHYSICAL REVIEW D, 64(7) [10.1103/PhysRevD.64.072002].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/39995
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