A search for πNN bound systems

D. Ashery; J. Lichtenstadt; E. Piasetzky; C. L. Morris; J. D. Zumbro; R. Gilman; M. W. Rawool; S. Mordechai; B. Boyer; A. Fuentes; K. Johnson; J. W. McDonald; M. J. Smithson; A. Williams; S. H. Yoo; C. Fred Moore

doi:10.1016/0370-2693(88)91066-0

A search for πNN bound systems

D. Ashery, J. Lichtenstadt, E. Piasetzky, C. L. Morris, J. D. Zumbro, R. Gilman, M. W. Rawool, S. Mordechai, B. Boyer, A. Fuentes, K. Johnson, J. W. McDonald, M. J. Smithson, A. Williams, S. H. Yoo, C. Fred Moore

Department of Physics

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

The d(π⁺, π^-)T⁺⁺⁺ and the d(π^-, π⁺) T^- reactions were studied at an incident pion energy of 260 MeV. Outgoing negative pions were detected at 35° and 55° in the first reaction, and the positive pions at 45° in the second. Indications for structures corresponding to a (π⁺pp) system with a mass of 2003.0±1.0 MeV and a (π^-nn) system with a mass of 200.1±1.5 MeV were observed with marginal statistical significance. Upper limits for the cross sections are obtained.

Original language	English
Pages (from-to)	41-44
Number of pages	4
Journal	Physics Letters B
Volume	215
Issue number	1
DOIs	https://doi.org/10.1016/0370-2693(88)91066-0
State	Published - 8 Dec 1988

ASJC Scopus subject areas

Nuclear and High Energy Physics

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title = "A search for πNN bound systems",

abstract = "The d(π+, π-)T+++ and the d(π-, π+) T- reactions were studied at an incident pion energy of 260 MeV. Outgoing negative pions were detected at 35° and 55° in the first reaction, and the positive pions at 45° in the second. Indications for structures corresponding to a (π+pp) system with a mass of 2003.0±1.0 MeV and a (π-nn) system with a mass of 200.1±1.5 MeV were observed with marginal statistical significance. Upper limits for the cross sections are obtained.",

author = "D. Ashery and J. Lichtenstadt and E. Piasetzky and Morris, {C. L.} and Zumbro, {J. D.} and R. Gilman and Rawool, {M. W.} and S. Mordechai and B. Boyer and A. Fuentes and K. Johnson and McDonald, {J. W.} and Smithson, {M. J.} and A. Williams and Yoo, {S. H.} and Moore, {C. Fred}",

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T1 - A search for πNN bound systems

AU - Ashery, D.

AU - Lichtenstadt, J.

AU - Piasetzky, E.

AU - Morris, C. L.

AU - Zumbro, J. D.

AU - Gilman, R.

AU - Rawool, M. W.

AU - Mordechai, S.

AU - Boyer, B.

AU - Fuentes, A.

AU - Johnson, K.

AU - McDonald, J. W.

AU - Smithson, M. J.

AU - Williams, A.

AU - Yoo, S. H.

AU - Moore, C. Fred

PY - 1988/12/8

Y1 - 1988/12/8

N2 - The d(π+, π-)T+++ and the d(π-, π+) T- reactions were studied at an incident pion energy of 260 MeV. Outgoing negative pions were detected at 35° and 55° in the first reaction, and the positive pions at 45° in the second. Indications for structures corresponding to a (π+pp) system with a mass of 2003.0±1.0 MeV and a (π-nn) system with a mass of 200.1±1.5 MeV were observed with marginal statistical significance. Upper limits for the cross sections are obtained.

AB - The d(π+, π-)T+++ and the d(π-, π+) T- reactions were studied at an incident pion energy of 260 MeV. Outgoing negative pions were detected at 35° and 55° in the first reaction, and the positive pions at 45° in the second. Indications for structures corresponding to a (π+pp) system with a mass of 2003.0±1.0 MeV and a (π-nn) system with a mass of 200.1±1.5 MeV were observed with marginal statistical significance. Upper limits for the cross sections are obtained.

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DO - 10.1016/0370-2693(88)91066-0

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JO - Physics Letters B

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A search for πNN bound systems

Abstract

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