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

^*Corresponding author for this work

School of Physics and Astronomy

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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

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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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JO - Physics Letters B

JF - Physics Letters B

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A search for πNN bound systems

Abstract

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