First results of the CELSIUS/WASA experiment

I. Koch, C. Bargholtz, D. Bogoslawsky, A. Bondar, H. Calén, F. Cappellaro, H. Clement, J. Comfort, L. Demirörs, E. Dorochkevitch, C. Ekström, K. Fransson, C. J. Fridén, B. Chernyshev, L. Gerén, M. Gornov, V. Grebenev, J. Greiff, Y. Gurov, L. GustafssonB. Höistad, G. Ivanov, M. Jacewicz, E. Jiganov, A. Johansson, T. Johansson, S. Keleta, K. Kilian, N. Kimura, S. Kullander, A. Kupść, L. Kurdadze, A. Kuzmin, A. Kuznetsov, K. Lindberg, P. Marciniewski, B. Martemyanov, R. Meier, B. Morosov, A. Nawrot, B. M K Nefkens, W. Oelert, S. Oreshkin, C. Pauly, Z. Pawlowski, Y. Petukhov, A. Povtorejko, J. Pätzold, D. Reistad, R. J M Y Ruber, V. Sandukovsky, W. Scobel, T. Sefzick, R. Shafigullin, M. Shepkin, V. Sidorov, B. Shwartz, T. Skorodko, V. Sopov, A. Starostin, J. Stepaniak, A. Sukhanov, V. Tchernychev, P. E. Tegner, P. Thörngren Engblom, V. Tikhomirov, A. Turowiecki, G. Wagner, U. Wiedner, K. Wilhelmsen, Z. Wilhelmi, A. Yamamoto, H. Yamaoka, J. Zabierowski, J. Zlomańczuk

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The CELSIUS/WASA experiment is now finishing its commissioning phase and has started regular data talcing in autumn 2001. Results from a first analysis of data samples from an experimental run at a beam energy of T p = 1360MeV in September 2001 are presented. The results show the ability to tag π 0 and η production events. For 2π 0 production a large data sample exists. The 2π 0 and 3π 0 production processes will be important sources of background for the η decays. They have until now been poorly measured, if at all. at this energy. The decay η → γγ will be used for normalization of all other η decays and the η → 3π 0 decay will test the light quark mass ratio predicted by Chiral Perturbation Theory.

Original languageEnglish (US)
Title of host publicationPhysica Scripta T
EditorsH. Calen, C. Ekstrom
Pages29-31
Number of pages3
Volume104
StatePublished - 2003
Event5th International Conference on Nuclear Physics at Storage Rings - Uppsala, Sweden
Duration: Jun 16 2002Jun 20 2002

Other

Other5th International Conference on Nuclear Physics at Storage Rings
CountrySweden
CityUppsala
Period6/16/026/20/02

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decay
autumn
mass ratios
perturbation theory
quarks
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Koch, I., Bargholtz, C., Bogoslawsky, D., Bondar, A., Calén, H., Cappellaro, F., ... Zlomańczuk, J. (2003). First results of the CELSIUS/WASA experiment. In H. Calen, & C. Ekstrom (Eds.), Physica Scripta T (Vol. 104, pp. 29-31)

First results of the CELSIUS/WASA experiment. / Koch, I.; Bargholtz, C.; Bogoslawsky, D.; Bondar, A.; Calén, H.; Cappellaro, F.; Clement, H.; Comfort, J.; Demirörs, L.; Dorochkevitch, E.; Ekström, C.; Fransson, K.; Fridén, C. J.; Chernyshev, B.; Gerén, L.; Gornov, M.; Grebenev, V.; Greiff, J.; Gurov, Y.; Gustafsson, L.; Höistad, B.; Ivanov, G.; Jacewicz, M.; Jiganov, E.; Johansson, A.; Johansson, T.; Keleta, S.; Kilian, K.; Kimura, N.; Kullander, S.; Kupść, A.; Kurdadze, L.; Kuzmin, A.; Kuznetsov, A.; Lindberg, K.; Marciniewski, P.; Martemyanov, B.; Meier, R.; Morosov, B.; Nawrot, A.; Nefkens, B. M K; Oelert, W.; Oreshkin, S.; Pauly, C.; Pawlowski, Z.; Petukhov, Y.; Povtorejko, A.; Pätzold, J.; Reistad, D.; Ruber, R. J M Y; Sandukovsky, V.; Scobel, W.; Sefzick, T.; Shafigullin, R.; Shepkin, M.; Sidorov, V.; Shwartz, B.; Skorodko, T.; Sopov, V.; Starostin, A.; Stepaniak, J.; Sukhanov, A.; Tchernychev, V.; Tegner, P. E.; Thörngren Engblom, P.; Tikhomirov, V.; Turowiecki, A.; Wagner, G.; Wiedner, U.; Wilhelmsen, K.; Wilhelmi, Z.; Yamamoto, A.; Yamaoka, H.; Zabierowski, J.; Zlomańczuk, J.

Physica Scripta T. ed. / H. Calen; C. Ekstrom. Vol. 104 2003. p. 29-31.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Koch, I, Bargholtz, C, Bogoslawsky, D, Bondar, A, Calén, H, Cappellaro, F, Clement, H, Comfort, J, Demirörs, L, Dorochkevitch, E, Ekström, C, Fransson, K, Fridén, CJ, Chernyshev, B, Gerén, L, Gornov, M, Grebenev, V, Greiff, J, Gurov, Y, Gustafsson, L, Höistad, B, Ivanov, G, Jacewicz, M, Jiganov, E, Johansson, A, Johansson, T, Keleta, S, Kilian, K, Kimura, N, Kullander, S, Kupść, A, Kurdadze, L, Kuzmin, A, Kuznetsov, A, Lindberg, K, Marciniewski, P, Martemyanov, B, Meier, R, Morosov, B, Nawrot, A, Nefkens, BMK, Oelert, W, Oreshkin, S, Pauly, C, Pawlowski, Z, Petukhov, Y, Povtorejko, A, Pätzold, J, Reistad, D, Ruber, RJMY, Sandukovsky, V, Scobel, W, Sefzick, T, Shafigullin, R, Shepkin, M, Sidorov, V, Shwartz, B, Skorodko, T, Sopov, V, Starostin, A, Stepaniak, J, Sukhanov, A, Tchernychev, V, Tegner, PE, Thörngren Engblom, P, Tikhomirov, V, Turowiecki, A, Wagner, G, Wiedner, U, Wilhelmsen, K, Wilhelmi, Z, Yamamoto, A, Yamaoka, H, Zabierowski, J & Zlomańczuk, J 2003, First results of the CELSIUS/WASA experiment. in H Calen & C Ekstrom (eds), Physica Scripta T. vol. 104, pp. 29-31, 5th International Conference on Nuclear Physics at Storage Rings, Uppsala, Sweden, 6/16/02.
Koch I, Bargholtz C, Bogoslawsky D, Bondar A, Calén H, Cappellaro F et al. First results of the CELSIUS/WASA experiment. In Calen H, Ekstrom C, editors, Physica Scripta T. Vol. 104. 2003. p. 29-31
Koch, I. ; Bargholtz, C. ; Bogoslawsky, D. ; Bondar, A. ; Calén, H. ; Cappellaro, F. ; Clement, H. ; Comfort, J. ; Demirörs, L. ; Dorochkevitch, E. ; Ekström, C. ; Fransson, K. ; Fridén, C. J. ; Chernyshev, B. ; Gerén, L. ; Gornov, M. ; Grebenev, V. ; Greiff, J. ; Gurov, Y. ; Gustafsson, L. ; Höistad, B. ; Ivanov, G. ; Jacewicz, M. ; Jiganov, E. ; Johansson, A. ; Johansson, T. ; Keleta, S. ; Kilian, K. ; Kimura, N. ; Kullander, S. ; Kupść, A. ; Kurdadze, L. ; Kuzmin, A. ; Kuznetsov, A. ; Lindberg, K. ; Marciniewski, P. ; Martemyanov, B. ; Meier, R. ; Morosov, B. ; Nawrot, A. ; Nefkens, B. M K ; Oelert, W. ; Oreshkin, S. ; Pauly, C. ; Pawlowski, Z. ; Petukhov, Y. ; Povtorejko, A. ; Pätzold, J. ; Reistad, D. ; Ruber, R. J M Y ; Sandukovsky, V. ; Scobel, W. ; Sefzick, T. ; Shafigullin, R. ; Shepkin, M. ; Sidorov, V. ; Shwartz, B. ; Skorodko, T. ; Sopov, V. ; Starostin, A. ; Stepaniak, J. ; Sukhanov, A. ; Tchernychev, V. ; Tegner, P. E. ; Thörngren Engblom, P. ; Tikhomirov, V. ; Turowiecki, A. ; Wagner, G. ; Wiedner, U. ; Wilhelmsen, K. ; Wilhelmi, Z. ; Yamamoto, A. ; Yamaoka, H. ; Zabierowski, J. ; Zlomańczuk, J. / First results of the CELSIUS/WASA experiment. Physica Scripta T. editor / H. Calen ; C. Ekstrom. Vol. 104 2003. pp. 29-31
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AU - Bargholtz, C.

AU - Bogoslawsky, D.

AU - Bondar, A.

AU - Calén, H.

AU - Cappellaro, F.

AU - Clement, H.

AU - Comfort, J.

AU - Demirörs, L.

AU - Dorochkevitch, E.

AU - Ekström, C.

AU - Fransson, K.

AU - Fridén, C. J.

AU - Chernyshev, B.

AU - Gerén, L.

AU - Gornov, M.

AU - Grebenev, V.

AU - Greiff, J.

AU - Gurov, Y.

AU - Gustafsson, L.

AU - Höistad, B.

AU - Ivanov, G.

AU - Jacewicz, M.

AU - Jiganov, E.

AU - Johansson, A.

AU - Johansson, T.

AU - Keleta, S.

AU - Kilian, K.

AU - Kimura, N.

AU - Kullander, S.

AU - Kupść, A.

AU - Kurdadze, L.

AU - Kuzmin, A.

AU - Kuznetsov, A.

AU - Lindberg, K.

AU - Marciniewski, P.

AU - Martemyanov, B.

AU - Meier, R.

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AU - Nawrot, A.

AU - Nefkens, B. M K

AU - Oelert, W.

AU - Oreshkin, S.

AU - Pauly, C.

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AU - Sefzick, T.

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AU - Sukhanov, A.

AU - Tchernychev, V.

AU - Tegner, P. E.

AU - Thörngren Engblom, P.

AU - Tikhomirov, V.

AU - Turowiecki, A.

AU - Wagner, G.

AU - Wiedner, U.

AU - Wilhelmsen, K.

AU - Wilhelmi, Z.

AU - Yamamoto, A.

AU - Yamaoka, H.

AU - Zabierowski, J.

AU - Zlomańczuk, J.

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AB - The CELSIUS/WASA experiment is now finishing its commissioning phase and has started regular data talcing in autumn 2001. Results from a first analysis of data samples from an experimental run at a beam energy of T p = 1360MeV in September 2001 are presented. The results show the ability to tag π 0 and η production events. For 2π 0 production a large data sample exists. The 2π 0 and 3π 0 production processes will be important sources of background for the η decays. They have until now been poorly measured, if at all. at this energy. The decay η → γγ will be used for normalization of all other η decays and the η → 3π 0 decay will test the light quark mass ratio predicted by Chiral Perturbation Theory.

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SP - 29

EP - 31

BT - Physica Scripta T

A2 - Calen, H.

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