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Title: A STUDY OF RESONANCES OF THE Z-7r SYSTEM

Abstract

Recently a T = 1 resonance in the {Lambda}-{pi} system called Y{sub 1} has been observed with a mass of 1385 MeV. Two types of resonances have been predicted that might relate this observation to other elementary-particle interactions: (1) P 3/2 resonances in the {Lambda}-{pi} and {Sigma}-{pi} systems predicted by global symmetry, corresponding to the (3,2/ 3/2) resonance of the {pi}-N system, (2) a spin-1/2 Y-{pi} resonance resulting from a bound state in the {bar K}-N system. The position and the width of the observed Y{sub 1} resonance agree with both theories, but since the spin and parity have not yet been determined, they cannot distinguish between the two theoretical interpretations.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
Sponsoring Org.:
USAEC
OSTI Identifier:
928400
Report Number(s):
UCRL-9717
TRN: US200811%%266
DOE Contract Number:
DE-AC02-05CH11231
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BOUND STATE; PARITY; RESONANCE; SPIN; SYMMETRY

Citation Formats

Alston, M. H., Alvarez, L. W., Eberhard, P., Good, M. L., Graziano, W., Ticho, H. K., and Wojcicki, S. G. A STUDY OF RESONANCES OF THE Z-7r SYSTEM. United States: N. p., 1961. Web. doi:10.2172/928400.
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Alston, M. H., Alvarez, L. W., Eberhard, P., Good, M. L., Graziano, W., Ticho, H. K., & Wojcicki, S. G. A STUDY OF RESONANCES OF THE Z-7r SYSTEM. United States. doi:10.2172/928400.
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Alston, M. H., Alvarez, L. W., Eberhard, P., Good, M. L., Graziano, W., Ticho, H. K., and Wojcicki, S. G. Tue . "A STUDY OF RESONANCES OF THE Z-7r SYSTEM". United States. doi:10.2172/928400. https://www.osti.gov/servlets/purl/928400.
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@article{osti_928400,
title = {A STUDY OF RESONANCES OF THE Z-7r SYSTEM},
author = {Alston, M. H. and Alvarez, L. W. and Eberhard, P. and Good, M. L. and Graziano, W. and Ticho, H. K. and Wojcicki, S. G.},
abstractNote = {Recently a T = 1 resonance in the {Lambda}-{pi} system called Y{sub 1} has been observed with a mass of 1385 MeV. Two types of resonances have been predicted that might relate this observation to other elementary-particle interactions: (1) P 3/2 resonances in the {Lambda}-{pi} and {Sigma}-{pi} systems predicted by global symmetry, corresponding to the (3,2/ 3/2) resonance of the {pi}-N system, (2) a spin-1/2 Y-{pi} resonance resulting from a bound state in the {bar K}-N system. The position and the width of the observed Y{sub 1} resonance agree with both theories, but since the spin and parity have not yet been determined, they cannot distinguish between the two theoretical interpretations.},
doi = {10.2172/928400},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 23 00:00:00 EDT 1961},
month = {Tue May 23 00:00:00 EDT 1961}
}
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Technical Report:
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DOI:  10.2172/928400
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