The 4He(π+,π-) reaction at low energies CHAOS Collaboration

J. Gräter; R. Bilger; H. Clement; R. Meier; G. J. Wagner; E. Friedman; M. Schepkin; P. A. Amaudruz; L. Felawka; D. Ottewell; G. R. Smith; A. Ambardar; G. J. Hofman; M. Kermani; G. Tagliente; F. Bonutti; P. Camerini; N. Grion; R. Rui; P. Hong; E. L. Mathie; R. Tacik; J. Clark; M. E. Sevior; O. Patarakin

doi:10.1016/s0370-2693(97)01540-2

The ⁴He(π⁺,π^-) reaction at low energies CHAOS Collaboration

J. Gräter^*
, R. Bilger
, H. Clement
, R. Meier
, G. J. Wagner
, E. Friedman
, M. Schepkin
, P. A. Amaudruz
, L. Felawka
, D. Ottewell
, G. R. Smith
, A. Ambardar
, G. J. Hofman
, M. Kermani
, G. Tagliente
, F. Bonutti
, P. Camerini
, N. Grion
, R. Rui
, P. Hong

E. L. Mathie, R. Tacik, J. Clark, M. E. Sevior, O. Patarakin

^*Corresponding author for this work

Racah Institute of Physics

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

16 Scopus citations

Abstract

Using the CHAOS spectrometer at TRIUMF the total cross sections and outgoing pion momentum distributions for the ⁴He(π⁺,π^-) reaction were measured for π⁺ kinetic energies from 70 to 130 MeV. At energies around 100 MeV the total cross sections show an excess by a factor 3 over conventional model calculations which could be ascribed to a contribution from a hypothetical d′ dibaryon.

Original language	English
Pages (from-to)	37-42
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	420
Issue number	1-2
DOIs	https://doi.org/10.1016/s0370-2693(97)01540-2
State	Published - 19 Feb 1998

Keywords

Dibaryon
He target
Pionic double charge exchange

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10.1016/s0370-2693(97)01540-2

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Gräter, J., Bilger, R., Clement, H., Meier, R., Wagner, G. J., Friedman, E., Schepkin, M., Amaudruz, P. A., Felawka, L., Ottewell, D., Smith, G. R., Ambardar, A., Hofman, G. J., Kermani, M., Tagliente, G., Bonutti, F., Camerini, P., Grion, N., Rui, R., ... Patarakin, O. (1998). The ⁴He(π⁺,π^-) reaction at low energies CHAOS Collaboration. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 420(1-2), 37-42. https://doi.org/10.1016/s0370-2693(97)01540-2

@article{871a8153e2124c06933debb2107cdedf,

title = "The 4He(π+,π-) reaction at low energies CHAOS Collaboration",

abstract = "Using the CHAOS spectrometer at TRIUMF the total cross sections and outgoing pion momentum distributions for the 4He(π+,π-) reaction were measured for π+ kinetic energies from 70 to 130 MeV. At energies around 100 MeV the total cross sections show an excess by a factor 3 over conventional model calculations which could be ascribed to a contribution from a hypothetical d′ dibaryon.",

keywords = "Dibaryon, He target, Pionic double charge exchange",

author = "J. Gr{\"a}ter and R. Bilger and H. Clement and R. Meier and Wagner, \{G. J.\} and E. Friedman and M. Schepkin and Amaudruz, \{P. A.\} and L. Felawka and D. Ottewell and Smith, \{G. R.\} and A. Ambardar and Hofman, \{G. J.\} and M. Kermani and G. Tagliente and F. Bonutti and P. Camerini and N. Grion and R. Rui and P. Hong and Mathie, \{E. L.\} and R. Tacik and J. Clark and Sevior, \{M. E.\} and O. Patarakin",

year = "1998",

month = feb,

day = "19",

doi = "10.1016/s0370-2693(97)01540-2",

language = "אנגלית",

volume = "420",

pages = "37--42",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "1-2",

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Gräter, J, Bilger, R, Clement, H, Meier, R, Wagner, GJ, Friedman, E, Schepkin, M, Amaudruz, PA, Felawka, L, Ottewell, D, Smith, GR, Ambardar, A, Hofman, GJ, Kermani, M, Tagliente, G, Bonutti, F, Camerini, P, Grion, N, Rui, R, Hong, P, Mathie, EL, Tacik, R, Clark, J, Sevior, ME & Patarakin, O 1998, 'The ⁴He(π⁺,π^-) reaction at low energies CHAOS Collaboration', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 420, no. 1-2, pp. 37-42. https://doi.org/10.1016/s0370-2693(97)01540-2

TY - JOUR

T1 - The 4He(π+,π-) reaction at low energies CHAOS Collaboration

AU - Gräter, J.

AU - Bilger, R.

AU - Clement, H.

AU - Meier, R.

AU - Wagner, G. J.

AU - Friedman, E.

AU - Schepkin, M.

AU - Amaudruz, P. A.

AU - Felawka, L.

AU - Ottewell, D.

AU - Smith, G. R.

AU - Ambardar, A.

AU - Hofman, G. J.

AU - Kermani, M.

AU - Tagliente, G.

AU - Bonutti, F.

AU - Camerini, P.

AU - Grion, N.

AU - Rui, R.

AU - Hong, P.

AU - Mathie, E. L.

AU - Tacik, R.

AU - Clark, J.

AU - Sevior, M. E.

AU - Patarakin, O.

PY - 1998/2/19

Y1 - 1998/2/19

N2 - Using the CHAOS spectrometer at TRIUMF the total cross sections and outgoing pion momentum distributions for the 4He(π+,π-) reaction were measured for π+ kinetic energies from 70 to 130 MeV. At energies around 100 MeV the total cross sections show an excess by a factor 3 over conventional model calculations which could be ascribed to a contribution from a hypothetical d′ dibaryon.

AB - Using the CHAOS spectrometer at TRIUMF the total cross sections and outgoing pion momentum distributions for the 4He(π+,π-) reaction were measured for π+ kinetic energies from 70 to 130 MeV. At energies around 100 MeV the total cross sections show an excess by a factor 3 over conventional model calculations which could be ascribed to a contribution from a hypothetical d′ dibaryon.

KW - Dibaryon

KW - He target

KW - Pionic double charge exchange

UR - https://www.scopus.com/pages/publications/0347090889

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JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-2

ER -

The ⁴He(π⁺,π^-) reaction at low energies CHAOS Collaboration

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Keywords

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