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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/100/16140

Title: Measurement of the pn -> pp pi(0)pi(-) reaction in search for the recently observed resonance structure in d pi(0)pi(0) and d pi(+)pi(-) systems
Authors: ADLARSON, P
AUGUSTYNIAK, W
BARDAN, W
BASHKANOV, M
BERGMANN, FS
BERLOWSKI, M
BHATT, H
BUSCHER, M
CALEN, H
CIEPAL, I
CLEMENT, H
CODERRE, D
CZERWINSKI, E
DEMMICH, K
DOROSHKEVICH, E
ENGELS, R
ERVEN, W
EYRICH, W
FEDORETS, P
FOHL, K
FRANSSON, K
GOLDENBAUM, F
GOSLAWSKI, P
GOSWAMI, A
GRIGORYEV, K
GULLSTROM, CO
HAUENSTEIN, F
HEIJKENSKJOLD, L
HEJNY, V
HINTERBERGER, F
HODANA, M
HOISTAD, B
JANY, A
JANY, BR
JARCZYK, L
JOHANSSON, T
KAMYS, B
KEMMERLING, G
KHAN, FA
KHOUKAZ, A
KIRILLOV, DA
KISTRYN, S
KLAJA, J
KLEINES, H
KLOS, B
KRAPP, M
KRZEMIEN, W
KULESSA, P
KUPSC, A
LALWANI, K
LERSCH, D
LI, L
LORENTZ, B
MAGIERA, A
MAIER, R
MARCINIEWSKI, P
MARIANSKI, B
MIKIRTYCHIANTS, M
MORSCH, HP
MOSKAL, P
NANDI, BK
OHM, H
OZERIANSKA, I
DEL RIO, EP
PISKUNOV, NM
PLUCINSKI, P
PODKOPAL, P
PRASUHN, D
PRICKING, A
PSZCZEL, D
PYSZ, K
PYSZNIAK, A
REDMER, CF
RITMAN, J
ROY, A
RUDY, Z
SAWANT, S
SCHMIDT, A
SCHADMAND, S
SEFZICK, T
SERDYUK, V
SHAH, N
SIEMASZKO, M
SIUDAK, R
SKORODKO, T
SKURZOK, M
SMYRSKI, J
SOPOV, V
STASSEN, R
STEPANIAK, J
STEPHAN, E
STERZENBACH, G
STOCKHORST, H
STROHER, H
SZCZUREK, A
TOLBA, T
TRZCINSKI, A
VARMA, R
WAGNER, GJ
EGLORZ, WW
WOLKE, M
WRONSKA, A
WUSTNER, P
WURM, P
YAMAMOTO, A
YUAN, X
ZABIEROWSKI, J
ZHENG, C
ZIELINSKI, MJ
ZIPPER, W
ZLOMANCZUK, J
ZUPRANSKI, P
ZUREK, M
Issue Date: 2013
Publisher: AMER PHYSICAL SOC
Citation: PHYSICAL REVIEW C, 88(5)
Abstract: Exclusive measurements of the quasifree pn -> pp pi(0)pi(-) reaction have been performed by means of pd collisions at T-p = 1.2 GeV using the wide angle shower apparatus (WASA) detector setup at the cooler synchrotron COSY (Institut fur Kernphysik, Julich). Total and differential cross sections have been obtained covering the energy region root s = (2.35-2.46) GeV, which includes the region of the ABC effect and its associated resonance structure. NoABCeffect, i.e., low-mass enhancement is found in the pi(0)pi(-) -invariant mass spectrum, in agreement with the constraint from Bose statistics that the isovector pion pair can not be in relative s wave. At the upper end of the covered energy region t-channel processes for Roper, Delta(1600) and Delta Delta excitations provide a reasonable description of the data, but at low energies the measured cross sections are much larger than predicted by such processes. Adding a resonance amplitude for the resonance at m = 2.37 GeV with Gamma = 70 MeV and I (J(P)) = 0(3(+)) observed recently in pn -> d pi(0)pi(0) and pn -> d pi(+)pi(-) reactions leads to an agreement with the data also at low energies.
URI: http://dx.doi.org/10.1103/PhysRevC.88.055208
http://dspace.library.iitb.ac.in/jspui/handle/100/16140
ISSN: 0556-2813
1089-490X
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