pi(0)pi(0) Production in proton-proton collisions at T-p=1.4 GeV The WASA-at-COSY Collaboration
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Title |
pi(0)pi(0) Production in proton-proton collisions at T-p=1.4 GeV The WASA-at-COSY Collaboration
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Creator |
ADLARSON, P
ADOLPH, C AUGUSTYNIAK, W BASHKANOV, M BEDNARSKI, T BERGMANN, FS BERLOWSKI, M BHATT, H BRINKMANN, KT BUSCHER, M CALEN, H CLEMENT, H CODERRE, D CZERWINSKI, E DOROSHKEVICH, E ENGELS, R ERVEN, W EYRICH, W FEDORETS, P FOHL, K FRANSSON, K GOLDENBAUM, F GOSLAWSKI, P GRIGORYEV, K GULLSTROM, CO HEIJKENSKJOLD, L HEIMLICH, J HEJNY, V HINTERBERGER, F HODANA, M HOISTAD, B JACEWICZ, M JANUSZ, M JANY, A JANY, BR JARCZYK, L JOHANSSON, T KAMYS, B KEMMERLING, G KHAKIMOVA, O KHOUKAZ, A KISTRYN, S KLAJA, J KLEINES, H KLOS, B KREN, F KRZEMIEN, W KULESSA, P KUPSC, A LALWANI, K LORENTZ, B MAGIERA, A MAIER, R MARIANSKI, B MARCINIEWSKI, P MIKIRTYCHIANTS, M MORSCH, HP MOSKAL, P NANDI, BK NIEDZWIECKI, S OHM, H PASSFELD, A PAULY, C DEL RIO, EP PETUKHOV, Y PISKUNOV, N PLUCINSKI, P PODKOPAL, P POVTOREYKO, A PRASUHN, D PRICKING, A PYSZ, K RAUSMANN, T REDMER, CF RITMAN, J ROY, A RUDY, Z SAWANT, S SCHADMAND, S SCHMIDT, A SEFZICK, T SERDYUK, V SHAH, N SIEMASZKO, M SKORODKO, T SKURZOK, M SMYRSKI, J SOPOV, V STASSEN, R STEPANIAK, J STERZENBACH, G STOCKHORST, H STROHER, H SZCZUREK, A TASCHNER, A TOLBA, T TRZCINSKI, A VARMA, R VLASOV, P WAGNER, GJ WEGLORZ, W WIEDNER, U WINNEMOLLER, A WOLKE, M WRONSKA, A WUSTNER, P WURM, P YUAN, X YUREV, L ZABIEROWSKI, J ZHENG, C ZIELINSKI, MJ ZIPPER, W ZLOMANCZUK, J ZUPRANSKI, P |
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Subject |
2-PION PRODUCTION
ROPER RESONANCE PION PRODUCTION CROSS-SECTIONS EXCITATION MODEL PP |
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Description |
The reaction pp -> pp pi(0)pi(0) has been investigated at a beam energy of 1.4 GeV using the WASA-at-COSY facility. The total cross section is found to be (324 +/- 21(systematic) +/- 58(normalization)) mu b. In order to study the production mechanism, differential kinematic distributions have been evaluated. The differential distributions indicate that both initial state protons are excited into intermediate Delta(1232) resonances, each decaying into a proton and a single pion, thereby producing the pion pair in the final state. No significant contribution of the Roper resonance N*(1440) via its decay into a proton and two pions is found. (C) 2011 Elsevier B.V. All rights reserved.
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Publisher |
ELSEVIER SCIENCE BV
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Date |
2014-10-17T06:08:44Z
2014-10-17T06:08:44Z 2012 |
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Type |
Article
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Identifier |
PHYSICS LETTERS B, 706(4-5)256-262
http://dx.doi.org/10.1016/j.physletb.2011.11.041 http://dspace.library.iitb.ac.in/jspui/handle/100/16146 |
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Language |
en
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