Formation of the tensor meson A2(1320) in photon-photon interactions

Ch Berger; A. Deuter; H. Genzel; W. Lackas; J. Pielorz; F. Raupach; W. Wagner; A. Klovning; E. Lillestöl; J. Bürger; L. Criegee; F. Ferrarotto; G. Franke; M. Gaspero; Ch Gerke; G. Knies; B. Lewendel; J. Meyer; U. Michelsen; K. H. Pape; B. Stella; U. Timm; G. G. Winter; M. Zachara; W. Zimmermann; P. J. Bussey; S. L. Cartwright; J. B. Dainton; B. T. King; C. Raine; J. M. Scarr; I. O. Skillicorn; K. M. Smith; J. C. Thomson; O. Achterberg; V. Blobel; D. Burkart; K. Diehlmann; M. Feindt; H. Kapitza; B. Koppitz; M. Krüger; M. Pope; H. Spitzer; R. van Staa; C. Y. Chang; R. G. Glasser; R. G. Kellogg; S. J. Maxfield; R. O. Polvado; B. Sechi-Zorn; J. A. Skard; A. Skuja; A. J. Tylka; G. E. Welch; G. T. Zorn; F. Almeida; A. Bäcker; F. Barreiro; S. Brandt; K. Derikum; C. Grupen; H. J. Meyer; H. Müller; B. Neumann; M. Rost; K. Stupperich; G. Zech; G. Alexander; G. Bella; Y. Gnat; J. Grunhaus; H. Junge; K. Kraski; C. Maxeiner; H. Maxeiner; H. Meyer; D. Schmidt

doi:10.1016/0370-2693(84)90438-6

Formation of the tensor meson A₂(1320) in photon-photon interactions

Ch Berger^*, A. Deuter, H. Genzel, W. Lackas, J. Pielorz, F. Raupach, W. Wagner, A. Klovning, E. Lillestöl, J. Bürger, L. Criegee, F. Ferrarotto, G. Franke, M. Gaspero, Ch Gerke, G. Knies, B. Lewendel, J. Meyer, U. Michelsen, K. H. PapeB. Stella, U. Timm, G. G. Winter, M. Zachara, W. Zimmermann, P. J. Bussey, S. L. Cartwright, J. B. Dainton, B. T. King, C. Raine, J. M. Scarr, I. O. Skillicorn, K. M. Smith, J. C. Thomson, O. Achterberg, V. Blobel, D. Burkart, K. Diehlmann, M. Feindt, H. Kapitza, B. Koppitz, M. Krüger, M. Pope, H. Spitzer, R. van Staa, C. Y. Chang, R. G. Glasser, R. G. Kellogg, S. J. Maxfield, R. O. Polvado, B. Sechi-Zorn, J. A. Skard, A. Skuja, A. J. Tylka, G. E. Welch, G. T. Zorn, F. Almeida, A. Bäcker, F. Barreiro, S. Brandt, K. Derikum, C. Grupen, H. J. Meyer, H. Müller, B. Neumann, M. Rost, K. Stupperich, G. Zech, G. Alexander, G. Bella, Y. Gnat, J. Grunhaus, H. Junge, K. Kraski, C. Maxeiner, H. Maxeiner, H. Meyer, D. Schmidt

^*Corresponding author for this work

School of Physics and Astronomy

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17 Scopus citations

Abstract

We have measured the reaction γγ → π⁺π^-π⁰ using the PLUTO detector at PETRA. A pronounced enhancement is seen in the π⁺π^-π⁰ mass distribution corresponding to the A₂ meson. The event configuration in this enhancement favors a 2⁺ spin-parity assignment. The value of Γ_γγ=1.06 ±0.18±0.19 keV obtained for the two-photon decay width of the A₂ agrees with previous measurements and with quark model predictions.

Original language	English
Pages (from-to)	427-432
Number of pages	6
Journal	Physics Letters B
Volume	149
Issue number	4-5
DOIs	https://doi.org/10.1016/0370-2693(84)90438-6
State	Published - 20 Dec 1984

Funding

Funders	Funder number
Basic Research Foundation
Norwegian Council for Science and Humanities 6 Rome University
Sezione di Roma
U.S. Department of Energy
Israel Academy of Sciences and Humanities
Instituto Nazionale di Fisica Nucleare
Bundesministerium für Forschung und Technologie
Science and Engineering Research Council

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10.1016/0370-2693(84)90438-6

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Berger, C., Deuter, A., Genzel, H., Lackas, W., Pielorz, J., Raupach, F., Wagner, W., Klovning, A., Lillestöl, E., Bürger, J., Criegee, L., Ferrarotto, F., Franke, G., Gaspero, M., Gerke, C., Knies, G., Lewendel, B., Meyer, J., Michelsen, U., ... Schmidt, D. (1984). Formation of the tensor meson A₂(1320) in photon-photon interactions. Physics Letters B, 149(4-5), 427-432. https://doi.org/10.1016/0370-2693(84)90438-6

@article{aae77e92302248208e857334a104771f,

title = "Formation of the tensor meson A2(1320) in photon-photon interactions",

abstract = "We have measured the reaction γγ → π+π-π0 using the PLUTO detector at PETRA. A pronounced enhancement is seen in the π+π-π0 mass distribution corresponding to the A2 meson. The event configuration in this enhancement favors a 2+ spin-parity assignment. The value of Γγγ=1.06 ±0.18±0.19 keV obtained for the two-photon decay width of the A2 agrees with previous measurements and with quark model predictions.",

author = "Ch Berger and A. Deuter and H. Genzel and W. Lackas and J. Pielorz and F. Raupach and W. Wagner and A. Klovning and E. Lillest{\"o}l and J. B{\"u}rger and L. Criegee and F. Ferrarotto and G. Franke and M. Gaspero and Ch Gerke and G. Knies and B. Lewendel and J. Meyer and U. Michelsen and Pape, {K. H.} and B. Stella and U. Timm and Winter, {G. G.} and M. Zachara and W. Zimmermann and Bussey, {P. J.} and Cartwright, {S. L.} and Dainton, {J. B.} and King, {B. T.} and C. Raine and Scarr, {J. M.} and Skillicorn, {I. O.} and Smith, {K. M.} and Thomson, {J. C.} and O. Achterberg and V. Blobel and D. Burkart and K. Diehlmann and M. Feindt and H. Kapitza and B. Koppitz and M. Kr{\"u}ger and M. Pope and H. Spitzer and {van Staa}, R. and Chang, {C. Y.} and Glasser, {R. G.} and Kellogg, {R. G.} and Maxfield, {S. J.} and Polvado, {R. O.} and B. Sechi-Zorn and Skard, {J. A.} and A. Skuja and Tylka, {A. J.} and Welch, {G. E.} and Zorn, {G. T.} and F. Almeida and A. B{\"a}cker and F. Barreiro and S. Brandt and K. Derikum and C. Grupen and Meyer, {H. J.} and H. M{\"u}ller and B. Neumann and M. Rost and K. Stupperich and G. Zech and G. Alexander and G. Bella and Y. Gnat and J. Grunhaus and H. Junge and K. Kraski and C. Maxeiner and H. Maxeiner and H. Meyer and D. Schmidt",

note = "Funding Information: 1 Deceased. 2 Present address: Universit~ de Paris Sud, Orsay, France. 3 Present address: University of California at Davis, CA, USA. 4 Supported by the BMFT, Fed. Rep. Germany. s Partially supported by Norwegian Council for Science and Humanities 6 Rome University, partially supported by INFN, Sezione di Roma, Italy. 7 Present address: CERN, Geneva, Switzerland. s Institute of Nuclear Physics, Cracow, Poland. 9 Present address: Rutherford Appleton Laboratory, Chil-ton, UIC Funding Information: 10 Supported by the UK Science and Engineering Research Council. 11 Present address: Texaco, Hamburg, Fed. Rep. Germany. 12 Present address: Universith't Karlsruhe, Fed. Rep. Germany. 13 Present address: Northeastern University, Boston, MA, USA. 14 Partially supported by the Department of Energy, USA. is On leave of absence from Instituto de Fisica, Universidad Federal do Rio de Janeiro, Brazil 16 Present address: BESSY, Berlin, Fed. Rep. Germany. 17 Partially supported by the Israeli Academy of Sciences and Humanities - Basic Research Foundation.",

year = "1984",

month = dec,

day = "20",

doi = "10.1016/0370-2693(84)90438-6",

language = "אנגלית",

volume = "149",

pages = "427--432",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

number = "4-5",

}

Berger, C, Deuter, A, Genzel, H, Lackas, W, Pielorz, J, Raupach, F, Wagner, W, Klovning, A, Lillestöl, E, Bürger, J, Criegee, L, Ferrarotto, F, Franke, G, Gaspero, M, Gerke, C, Knies, G, Lewendel, B, Meyer, J, Michelsen, U, Pape, KH, Stella, B, Timm, U, Winter, GG, Zachara, M, Zimmermann, W, Bussey, PJ, Cartwright, SL, Dainton, JB, King, BT, Raine, C, Scarr, JM, Skillicorn, IO, Smith, KM, Thomson, JC, Achterberg, O, Blobel, V, Burkart, D, Diehlmann, K, Feindt, M, Kapitza, H, Koppitz, B, Krüger, M, Pope, M, Spitzer, H, van Staa, R, Chang, CY, Glasser, RG, Kellogg, RG, Maxfield, SJ, Polvado, RO, Sechi-Zorn, B, Skard, JA, Skuja, A, Tylka, AJ, Welch, GE, Zorn, GT, Almeida, F, Bäcker, A, Barreiro, F, Brandt, S, Derikum, K, Grupen, C, Meyer, HJ, Müller, H, Neumann, B, Rost, M, Stupperich, K, Zech, G, Alexander, G , Bella, G, Gnat, Y, Grunhaus, J, Junge, H, Kraski, K, Maxeiner, C, Maxeiner, H, Meyer, H & Schmidt, D 1984, 'Formation of the tensor meson A₂(1320) in photon-photon interactions', Physics Letters B, vol. 149, no. 4-5, pp. 427-432. https://doi.org/10.1016/0370-2693(84)90438-6

TY - JOUR

T1 - Formation of the tensor meson A2(1320) in photon-photon interactions

AU - Berger, Ch

AU - Deuter, A.

AU - Genzel, H.

AU - Lackas, W.

AU - Pielorz, J.

AU - Raupach, F.

AU - Wagner, W.

AU - Klovning, A.

AU - Lillestöl, E.

AU - Bürger, J.

AU - Criegee, L.

AU - Ferrarotto, F.

AU - Franke, G.

AU - Gaspero, M.

AU - Gerke, Ch

AU - Knies, G.

AU - Lewendel, B.

AU - Meyer, J.

AU - Michelsen, U.

AU - Pape, K. H.

AU - Stella, B.

AU - Timm, U.

AU - Winter, G. G.

AU - Zachara, M.

AU - Zimmermann, W.

AU - Bussey, P. J.

AU - Cartwright, S. L.

AU - Dainton, J. B.

AU - King, B. T.

AU - Raine, C.

AU - Scarr, J. M.

AU - Skillicorn, I. O.

AU - Smith, K. M.

AU - Thomson, J. C.

AU - Achterberg, O.

AU - Blobel, V.

AU - Burkart, D.

AU - Diehlmann, K.

AU - Feindt, M.

AU - Kapitza, H.

AU - Koppitz, B.

AU - Krüger, M.

AU - Pope, M.

AU - Spitzer, H.

AU - van Staa, R.

AU - Chang, C. Y.

AU - Glasser, R. G.

AU - Kellogg, R. G.

AU - Maxfield, S. J.

AU - Polvado, R. O.

AU - Sechi-Zorn, B.

AU - Skard, J. A.

AU - Skuja, A.

AU - Tylka, A. J.

AU - Welch, G. E.

AU - Zorn, G. T.

AU - Almeida, F.

AU - Bäcker, A.

AU - Barreiro, F.

AU - Brandt, S.

AU - Derikum, K.

AU - Grupen, C.

AU - Meyer, H. J.

AU - Müller, H.

AU - Neumann, B.

AU - Rost, M.

AU - Stupperich, K.

AU - Zech, G.

AU - Alexander, G.

AU - Bella, G.

AU - Gnat, Y.

AU - Grunhaus, J.

AU - Junge, H.

AU - Kraski, K.

AU - Maxeiner, C.

AU - Maxeiner, H.

AU - Meyer, H.

AU - Schmidt, D.

N1 - Funding Information: 1 Deceased. 2 Present address: Universit~ de Paris Sud, Orsay, France. 3 Present address: University of California at Davis, CA, USA. 4 Supported by the BMFT, Fed. Rep. Germany. s Partially supported by Norwegian Council for Science and Humanities 6 Rome University, partially supported by INFN, Sezione di Roma, Italy. 7 Present address: CERN, Geneva, Switzerland. s Institute of Nuclear Physics, Cracow, Poland. 9 Present address: Rutherford Appleton Laboratory, Chil-ton, UIC Funding Information: 10 Supported by the UK Science and Engineering Research Council. 11 Present address: Texaco, Hamburg, Fed. Rep. Germany. 12 Present address: Universith't Karlsruhe, Fed. Rep. Germany. 13 Present address: Northeastern University, Boston, MA, USA. 14 Partially supported by the Department of Energy, USA. is On leave of absence from Instituto de Fisica, Universidad Federal do Rio de Janeiro, Brazil 16 Present address: BESSY, Berlin, Fed. Rep. Germany. 17 Partially supported by the Israeli Academy of Sciences and Humanities - Basic Research Foundation.

PY - 1984/12/20

Y1 - 1984/12/20

N2 - We have measured the reaction γγ → π+π-π0 using the PLUTO detector at PETRA. A pronounced enhancement is seen in the π+π-π0 mass distribution corresponding to the A2 meson. The event configuration in this enhancement favors a 2+ spin-parity assignment. The value of Γγγ=1.06 ±0.18±0.19 keV obtained for the two-photon decay width of the A2 agrees with previous measurements and with quark model predictions.

AB - We have measured the reaction γγ → π+π-π0 using the PLUTO detector at PETRA. A pronounced enhancement is seen in the π+π-π0 mass distribution corresponding to the A2 meson. The event configuration in this enhancement favors a 2+ spin-parity assignment. The value of Γγγ=1.06 ±0.18±0.19 keV obtained for the two-photon decay width of the A2 agrees with previous measurements and with quark model predictions.

UR - http://www.scopus.com/inward/record.url?scp=30244465600&partnerID=8YFLogxK

U2 - 10.1016/0370-2693(84)90438-6

DO - 10.1016/0370-2693(84)90438-6

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AN - SCOPUS:30244465600

SN - 0370-2693

VL - 149

SP - 427

EP - 432

JO - Physics Letters B

JF - Physics Letters B

IS - 4-5

ER -

Formation of the tensor meson A₂(1320) in photon-photon interactions

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