Differential Cross Section of the pn → pp(1S0)π- Reaction Extracted from pd → pppπ-

F. Duncan; H. Hahn; C. Aclander; D. Ashery; E. G. Auld; D. R. Gill; D. A. Hutcheon; G. Jones; E. Korkmaz; S. Maytal-Beck; M. A. Moinester; J. A. Niskanen; D. Ottewell; A. Rahav; S. Ram; M. Sevior; P. L. Walden; R. Weiss

doi:10.1103/PhysRevLett.80.4390

Differential Cross Section of the pn → pp(¹S₀)π^- Reaction Extracted from pd → pppπ^-

F. Duncan, H. Hahn, C. Aclander, D. Ashery, E. G. Auld, D. R. Gill, D. A. Hutcheon, G. Jones, E. Korkmaz, S. Maytal-Beck, M. A. Moinester, J. A. Niskanen, D. Ottewell, A. Rahav, S. Ram, M. Sevior, P. L. Walden, R. Weiss

School of Physics and Astronomy

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

Abstract

The double differential cross section for pn → pp(¹S₀)π^- at three beam energies has been extracted from the quasifree process pd → ppp π^-. A comparison is carried out with single differential cross section measurements for ³He(π^-, pn)n, where the pion is thought to be absorbed onto a pp(¹S₀)“diproton” state. A significant difference is observed in the shape of the angular distribution between the production and absorption data. This difference is ascribed to the effects of the ³He nuclear environment characterizing the absorption process; however, an adequate theoretical explanation is not available.

Original language	English
Pages (from-to)	4390-4393
Number of pages	4
Journal	Physical Review Letters
Volume	80
Issue number	20
DOIs	https://doi.org/10.1103/PhysRevLett.80.4390
State	Published - 1998

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Duncan, F., Hahn, H., Aclander, C., Ashery, D., Auld, E. G., Gill, D. R., Hutcheon, D. A., Jones, G., Korkmaz, E., Maytal-Beck, S., Moinester, M. A., Niskanen, J. A., Ottewell, D., Rahav, A., Ram, S., Sevior, M., Walden, P. L., & Weiss, R. (1998). Differential Cross Section of the pn → pp(¹S₀)π^- Reaction Extracted from pd → pppπ^-. Physical Review Letters, 80(20), 4390-4393. https://doi.org/10.1103/PhysRevLett.80.4390

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title = "Differential Cross Section of the pn → pp(1S0)π- Reaction Extracted from pd → pppπ-",

abstract = "The double differential cross section for pn → pp(1S0)π- at three beam energies has been extracted from the quasifree process pd → ppp π-. A comparison is carried out with single differential cross section measurements for 3He(π-, pn)n, where the pion is thought to be absorbed onto a pp(1S0)“diproton” state. A significant difference is observed in the shape of the angular distribution between the production and absorption data. This difference is ascribed to the effects of the 3He nuclear environment characterizing the absorption process; however, an adequate theoretical explanation is not available.",

author = "F. Duncan and H. Hahn and C. Aclander and D. Ashery and Auld, {E. G.} and Gill, {D. R.} and Hutcheon, {D. A.} and G. Jones and E. Korkmaz and S. Maytal-Beck and Moinester, {M. A.} and Niskanen, {J. A.} and D. Ottewell and A. Rahav and S. Ram and M. Sevior and Walden, {P. L.} and R. Weiss",

year = "1998",

doi = "10.1103/PhysRevLett.80.4390",

language = "אנגלית",

volume = "80",

pages = "4390--4393",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

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Duncan, F, Hahn, H, Aclander, C, Ashery, D, Auld, EG, Gill, DR, Hutcheon, DA, Jones, G, Korkmaz, E, Maytal-Beck, S, Moinester, MA, Niskanen, JA, Ottewell, D, Rahav, A, Ram, S, Sevior, M, Walden, PL & Weiss, R 1998, 'Differential Cross Section of the pn → pp(¹S₀)π^- Reaction Extracted from pd → pppπ^-', Physical Review Letters, vol. 80, no. 20, pp. 4390-4393. https://doi.org/10.1103/PhysRevLett.80.4390

TY - JOUR

T1 - Differential Cross Section of the pn → pp(1S0)π- Reaction Extracted from pd → pppπ-

AU - Duncan, F.

AU - Hahn, H.

AU - Aclander, C.

AU - Ashery, D.

AU - Auld, E. G.

AU - Gill, D. R.

AU - Hutcheon, D. A.

AU - Jones, G.

AU - Korkmaz, E.

AU - Maytal-Beck, S.

AU - Moinester, M. A.

AU - Niskanen, J. A.

AU - Ottewell, D.

AU - Rahav, A.

AU - Ram, S.

AU - Sevior, M.

AU - Walden, P. L.

AU - Weiss, R.

PY - 1998

Y1 - 1998

N2 - The double differential cross section for pn → pp(1S0)π- at three beam energies has been extracted from the quasifree process pd → ppp π-. A comparison is carried out with single differential cross section measurements for 3He(π-, pn)n, where the pion is thought to be absorbed onto a pp(1S0)“diproton” state. A significant difference is observed in the shape of the angular distribution between the production and absorption data. This difference is ascribed to the effects of the 3He nuclear environment characterizing the absorption process; however, an adequate theoretical explanation is not available.

AB - The double differential cross section for pn → pp(1S0)π- at three beam energies has been extracted from the quasifree process pd → ppp π-. A comparison is carried out with single differential cross section measurements for 3He(π-, pn)n, where the pion is thought to be absorbed onto a pp(1S0)“diproton” state. A significant difference is observed in the shape of the angular distribution between the production and absorption data. This difference is ascribed to the effects of the 3He nuclear environment characterizing the absorption process; however, an adequate theoretical explanation is not available.

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EP - 4393

JO - Physical Review Letters

JF - Physical Review Letters

IS - 20

ER -

Differential Cross Section of the pn → pp(¹S₀)π^- Reaction Extracted from pd → pppπ^-

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