Exclusive measurement of the eta -> pi(+) pi(-) gamma decay

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Adlarson, PatrikUppsala universitet,Kärnfysik (author)

Exclusive measurement of the eta -> pi(+) pi(-) gamma decay

Article/chapterEnglish2012

Publisher, publication year, extent ...

Elsevier BV,2012
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LIBRIS-ID:oai:DiVA.org:uu-169964
https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-169964URI
https://doi.org/10.1016/j.physletb.2011.12.027DOI

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Language:English
Summary in:English

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SwePubSwePub

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Subject category:ref swepub-contenttype
Subject category:art swepub-publicationtype

Notes

An exclusive measurement of the decay eta -> pi(+) pi(-) gamma has been performed at the WASA facility at COSY. The eta mesons were produced in the fusion reaction pd -> He-3 X at a proton beam momentum of 1.7 GeV/c. Efficiency corrected differential distributions have been extracted based on 13 960 +/- 140 events after background subtraction. The measured pion angular distribution is consistent with a relative p-wave of the two-pion system, whereas the measured photon energy spectrum was found at variance with the simplest gauge invariant matrix element of eta -> pi(+) pi(-) gamma. A parameterization of the data can be achieved by the additional inclusion of the empirical pion vector form factor multiplied by a first-order polynomial in the squared invariant mass of the pi(+) pi(-) system.

Subject headings and genre

NATURVETENSKAP Fysik hsv//swe
NATURAL SCIENCES Physical Sciences hsv//eng
eta meson
Box anomaly
Exclusive measurement

Added entries (persons, corporate bodies, meetings, titles ...)

Adolph, C. (author)
Augustyniak, W. (author)
Bardan, W. (author)
Bashkanov, M. (author)
Bednarski, T. (author)
Bergmann, F. S. (author)
Berlowski, M. (author)
Bhatt, H. (author)
Brinkmann, K. -T (author)
Buescher, M. (author)
Calén, Hans (author)
Clement, H (author)
Coderre, D. (author)
Czerwinski, E. (author)
Doroshkevich, E. (author)
Engels, R. (author)
Erven, W. (author)
Eyrich, W. (author)
Fedorets, P. (author)
Foehl, K. (author)
Fransson, KjellUppsala universitet,Kärnfysik(Swepub:uu)kjelfran (author)
Goldenbaum, F. (author)
Goslawski, P. (author)
Grigoryev, K. (author)
Gullström, Carl-OscarUppsala universitet,Kärnfysik(Swepub:uu)cargu704 (author)
Hanhart, C. (author)
Heijkenskjöld, LenaUppsala universitet,Kärnfysik(Swepub:uu)lenhe965 (author)
Heimlich, J. (author)
Hejny, V. (author)
Hinterberger, F. (author)
Hodana, M. (author)
Höistad, BoUppsala universitet,Kärnfysik(Swepub:uu)bohoista (author)
Jacewicz, MarekUppsala universitet,Högenergifysik(Swepub:uu)mja03009 (author)
Jany, A. (author)
Jany, B. R. (author)
Jarczyk, L. (author)
Johansson, TordUppsala universitet,Kärnfysik(Swepub:uu)tordjoha (author)
Kamys, B. (author)
Kemmerling, G. (author)
Khakimova, O. (author)
Khoukaz, A. (author)
Kistryn, S. (author)
Klaja, J. (author)
Kleines, H. (author)
Klos, B. (author)
Kren, F. (author)
Krzemien, W. (author)
Kulessa, P. (author)
Kupsc, AndrzejUppsala universitet,Kärnfysik(Swepub:uu)andrkups (author)
Lalwani, K. (author)
Leupold, StefanUppsala universitet,Kärnfysik(Swepub:uu)stele192 (author)
Lorentz, B. (author)
Magiera, A. (author)
Maier, R. (author)
Marianski, B. (author)
Marciniewski, PawelUppsala universitet,Kärnfysik(Swepub:uu)pawemarc (author)
Meissner, U-G (author)
Mikirtychiants, M. (author)
Morsch, H. -P (author)
Moskal, P. (author)
Nandi, B. K. (author)
Niedzwiecki, S. (author)
Ohm, H. (author)
Passfeld, A. (author)
Pauly, C. (author)
del Rio, E. Perez (author)
Petri, T. (author)
Petukhov, Y. (author)
Piskunov, N. (author)
Plucinski, PawelUppsala universitet,Kärnfysik(Swepub:uu)pawpl866 (author)
Podkopal, P. (author)
Povtoreyko, A. (author)
Prasuhn, D. (author)
Pricking, A. (author)
Pysz, K. (author)
Pyszniak, A. (author)
Rausmann, T. (author)
Redmer, Cristoph F.Uppsala universitet,Kärnfysik(Swepub:uu)chrre261 (author)
Ritman, J. (author)
Roy, A. (author)
Rudy, Z. (author)
Sawant, S. (author)
Schadmand, S. (author)
Schmidt, A. (author)
Sefzick, T. (author)
Serdyuk, V. (author)
Shah, N. (author)
Siemaszko, M. (author)
Siudak, R. (author)
Skorodko, T. (author)
Skurzok, M. (author)
Smyrski, J. (author)
Sopov, V. (author)
Stassen, R. (author)
Stepaniak, J. (author)
Sterzenbach, G. (author)
Stockhorst, H. (author)
Stollenwerk, F. (author)
Stroeher, H. (author)
Szczurek, A. (author)
Taeschner, A. (author)
Terschlüsen, CarlaUppsala universitet,Kärnfysik(Swepub:uu)carte365 (author)
Tolba, T. (author)
Trzcinski, A. (author)
Varma, R. (author)
Vlasov, P. (author)
Wagner, G. J. (author)
Weglorz, W. (author)
Winnemoeller, A. (author)
Wirzba, A. (author)
Wolke, MagnusUppsala universitet,Kärnfysik(Swepub:uu)mawol031 (author)
Wronska, A. (author)
Wuestner, P. (author)
Wurm, P. (author)
Yuan, X. (author)
Yurev, L. (author)
Zabierowski, J. (author)
Zheng, C. (author)
Zielinski, M. J. (author)
Zipper, W. (author)
Zlomanczuk, JozefUppsala universitet,Kärnfysik(Swepub:uu)jozezlom (author)
Zupranski, P. (author)
Uppsala universitetKärnfysik (creator_code:org_t)

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In:Physics Letters B: Elsevier BV707:2, s. 243-2490370-26931873-2445

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By the author/editor: Adlarson, Patrik; Adolph, C.; Augustyniak, W.; Bardan, W.; Bashkanov, M.; Bednarski, T.; show more...; Bergmann, F. S.; Berlowski, M.; Bhatt, H.; Brinkmann, K. -T; Buescher, M.; Calén, Hans; Clement, H; Coderre, D.; Czerwinski, E.; Doroshkevich, E.; Engels, R.; Erven, W.; Eyrich, W.; Fedorets, P.; Foehl, K.; Fransson, Kjell; Goldenbaum, F.; Goslawski, P.; Grigoryev, K.; Gullström, Carl- ...; Hanhart, C.; Heijkenskjöld, L ...; Heimlich, J.; Hejny, V.; Hinterberger, F.; Hodana, M.; Höistad, Bo; Jacewicz, Marek; Jany, A.; Jany, B. R.; Jarczyk, L.; Johansson, Tord; Kamys, B.; Kemmerling, G.; Khakimova, O.; Khoukaz, A.; Kistryn, S.; Klaja, J.; Kleines, H.; Klos, B.; Kren, F.; Krzemien, W.; Kulessa, P.; Kupsc, Andrzej; Lalwani, K.; Leupold, Stefan; Lorentz, B.; Magiera, A.; Maier, R.; Marianski, B.; Marciniewski, Pa ...; Meissner, U-G; Mikirtychiants, ...; Morsch, H. -P; Moskal, P.; Nandi, B. K.; Niedzwiecki, S.; Ohm, H.; Passfeld, A.; Pauly, C.; del Rio, E. Pere ...; Petri, T.; Petukhov, Y.; Piskunov, N.; Plucinski, Pawel; Podkopal, P.; Povtoreyko, A.; Prasuhn, D.; Pricking, A.; Pysz, K.; Pyszniak, A.; Rausmann, T.; Redmer, Cristoph ...; Ritman, J.; Roy, A.; Rudy, Z.; Sawant, S.; Schadmand, S.; Schmidt, A.; Sefzick, T.; Serdyuk, V.; Shah, N.; Siemaszko, M.; Siudak, R.; Skorodko, T.; Skurzok, M.; Smyrski, J.; Sopov, V.; Stassen, R.; Stepaniak, J.; Sterzenbach, G.; Stockhorst, H.; Stollenwerk, F.; Stroeher, H.; Szczurek, A.; Taeschner, A.; Terschlüsen, Car ...; Tolba, T.; Trzcinski, A.; Varma, R.; Vlasov, P.; Wagner, G. J.; Weglorz, W.; Winnemoeller, A.; Wirzba, A.; Wolke, Magnus; Wronska, A.; Wuestner, P.; Wurm, P.; Yuan, X.; Yurev, L.; Zabierowski, J.; Zheng, C.; Zielinski, M. J.; Zipper, W.; Zlomanczuk, Joze ...; Zupranski, P.; show less...

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