Experimental search for a new light baryon

S. Ram; R. Abegg; D. Ashery; D. Frekers; R. Helmer; R. S. Henderson; K. P. Jackson; C. A. Miller; S. Nussinov; E. Piasetzky; A. Rahav; A. I. Yavin; S. Yen

doi:10.1103/PhysRevD.49.3120

Access by Xinjiang University

Experimental search for a new light baryon

S. Ram^1,2, R. Abegg², D. Ashery¹, D. Frekers², R. Helmer², R. S. Henderson², K. P. Jackson², C. A. Miller², S. Nussinov¹ et al.

E. Piasetzky¹, A. Rahav^1,2, A. I. Yavin¹, and S. Yen²

¹School of Physics, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, Israel 69978
²TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, Canada V6T 2A3

PDF

Phys. Rev. D 49, 3120 – Published 1 April, 1994

DOI: https://doi.org/10.1103/PhysRevD.49.3120

Abstract

A search was conducted for a light baryon $X^{+ +}$ in the mass range $M_{N} + M_{π} \geq M_{X} \geq M_{N}$ , by bombarding a ${CH}_{2}$ target with 460 MeV protons, and detecting the products in the Medium Resolution Spectrometer, which was placed at a scattering angle of 15 degrees. No doubly charged baryon in this mass range was detected, thus setting an upper limit of a few tens pb/sr for the reaction. The experiment indicates that if such a light baryon exists its interaction with the "ordinary" physical world is very weak, probably at least $10^{7}$ times weaker than the strong interaction.

References (9)

Particle Data Group, K. Hikasa et al., Phys. Rev. D 45, S1 (1992)
L. Masperi and G. Violini, Mod. Phys. Lett. 5, 101 (1990)
Ya. I. Azimov, Phys. Lett. 2B, 499 (1970)
F. J. Federspiel et al., Phys. Rev. Lett. 67, 1511 (1991)
A. I. Yavin and D. Frekers, TRIUMF Proposal E544 (unpublished)
S. Ram, thesis, Tel Aviv University, 1991
R. H. Dalitz and A. Gal, Phys. Lett. 64B, 154 (1976)
A. Gal (private communication)
F. W. N. de Boer et al., Phys. Rev. Lett. 53, 423 (1984)

[c1] Particle Data Group, K. Hikasa et al., Phys. Rev. D 45, S1 (1992)

[c2] L. Masperi and G. Violini, Mod. Phys. Lett. 5, 101 (1990)

[c3] Ya. I. Azimov, Phys. Lett. 2B, 499 (1970)

[c4] F. J. Federspiel et al., Phys. Rev. Lett. 67, 1511 (1991)

[c5] A. I. Yavin and D. Frekers, TRIUMF Proposal E544 (unpublished)

[c6] S. Ram, thesis, Tel Aviv University, 1991

[c7] R. H. Dalitz and A. Gal, Phys. Lett. 64B, 154 (1976)

[c8] A. Gal (private communication)

[c9] F. W. N. de Boer et al., Phys. Rev. Lett. 53, 423 (1984)

Physical Review D

Export citation

Export citation

Experimental search for a new light baryon

Abstract

References (9)

Outline

Information

Filter

Filter

Article Lookup

Enter a citation