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Production of eta', D and E mesons in. pi. /sup -/p. -->. eta. pi. /sup +/. pi. /sup -/n at 8. 4 GeV/c. [8. 4 GeV/c]

K. W. Edwards, D. Legacey, P. Brockman, J. Gandsman, P. M. Patel, C. Zanfino, Noel R. Stanton, J. A. Dankowych, J. F. Martin, J.D. Prentice

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Abstract

Preliminary results are reported from a study of ..pi../sup -/p ..-->.. eta..pi../sup +/..pi../sup -/n (eta ..-->.. ..gamma gamma..) at 8.4 GeV/c, using the charged and neutral spectrometer at the Argonne ZGS. Both charged particles and both ..gamma..'s are measured by the apparatus. The data presented from a first-pass analysis of 45 percent of the sample, contain 1,770 eta' (958), 240 D(1285) and a suggestion of E(1420). Cascade decays via sigma(980) ..-->.. eta..pi.. will be discussed. A very clean sample of D(1285) is obtained by a suitable eta..pi.. mass cut.

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What this paper is about

Preliminary results are reported from a study of ..pi../sup -/p ..-->.. eta..pi../sup +/..pi../sup -/n (eta ..-->.. ..gamma gamma..) at 8.4 GeV/c, using the charged and neutral spectrometer at the Argonne ZGS. Both charged particles and both ..gamma..'s are measured by the apparatus. The data presented from a first-pass analysis of 45 percent of the sample, contain 1,770 eta' (958), 240 D(1285) and a suggestion of E(1420). Cascade decays via sigma(980) ..-->.. eta..pi.. will be discussed. A very clean sample of D(1285) is obtained by a suitable eta..pi.. mass cut.

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Available abstract

Preliminary results are reported from a study of ..pi../sup -/p ..-->.. eta..pi../sup +/..pi../sup -/n (eta ..-->.. ..gamma gamma..) at 8.4 GeV/c, using the charged and neutral spectrometer at the Argonne ZGS. Both charged particles and both ..gamma..'s are measured by the apparatus. The data presented from a first-pass analysis of 45 percent of the sample, contain 1,770 eta' (958), 240 D(1285) and a suggestion of E(1420). Cascade decays via sigma(980) ..-->.. eta..pi.. will be discussed. A very clean sample of D(1285) is obtained by a suitable eta..pi.. mass cut.

Key concepts: Pi, Physics, Meson, Nuclear physics, Hadron, Particle physics, Pion, Analytical Chemistry (journal)

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Production of eta', D and E mesons in. pi. /sup -/p. -->. eta. pi. /sup +/. pi. /sup -/n at 8. 4 GeV/c. [8. 4 GeV/c] — Research Paper | ScholarLens