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000008500 084__ $$2WoS$$aPhysics, Nuclear
000008500 084__ $$2WoS$$aPhysics, Particles & Fields
000008500 084__ $$2PACS$$a13.75.Cs
000008500 084__ $$2PACS$$a14.20.Gk
000008500 084__ $$2PACS$$a14.20.Pt
000008500 084__ $$2PACS$$a25.10.+s
000008500 1001_ $$0P:(DE-HGF)0$$aAbdel-Samad, S.$$b0
000008500 245__ $$aSingle-pion production in pp collisions at 0.95 GeV/c (II)
000008500 260__ $$aBerlin$$bSpringer$$c2009
000008500 300__ $$a281 - 289
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000008500 440_0 $$01981$$aEuropean Physical Journal A$$v39$$x1434-6001$$y3
000008500 500__ $$aThis work has been supported by BMBF, DFG (Europ. Graduiertenkolleg 683) and COSY-FFE. We acknowledge valuable discussions with R. A. Arndt, L. Alvarez-Ruso, D. Bugg, C. Hanhart, M. Kaskulov, V. Kukulin, E. Oset, I. Strakovsky, W. Weise and C. Wilkin.
000008500 520__ $$aThe single-pion production reactions pp -> d pi(+), pp -> np pi(+) and pp -> pp pi(0) were measured at a beam momentum of 0.95 GeV/c (T-p approximate to 400 MeV) using the short version of the COSY-TOF spectrometer. The central calorimeter provided particle identification, energy determination and neutron detection in addition to time-of-flight and angle measurements from other detector parts. Thus all pion production channels were recorded with 1-4 overconstraints. The main emphasis is put on the presentation and discussion of the npp+ channel, since the results on the other channels have already been published previously. The total and differential cross-sections obtained are compared to theoretical calculations. In contrast to the pp pi(0) channel we observe in the np pi(+) channel a strong influence of the Delta excitation. In particular, the pion angular distribution exhibits a (3cos(2) circle minus + 1)-dependence, typical for a pure s-channel Delta excitation and identical to that observed in the dp+ channel. Since the latter is understood by a s-channel resonance in the D-1(2) pn partial wave, we discuss an analogous scenario for the pn pi(+) channel.
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000008500 650_7 $$2INSPIRE$$ap p: exclusive reaction
000008500 650_7 $$2INSPIRE$$api+: hadroproduction
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000008500 650_7 $$2INSPIRE$$aJuelich COSY PS
000008500 650_7 $$2INSPIRE$$ap p --> 2 nucleon pi
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000008500 650_7 $$2INSPIRE$$a0.95 GeV/c
000008500 7001_ $$0P:(DE-HGF)0$$aBilger, R.$$b1
000008500 7001_ $$0P:(DE-HGF)0$$aBrinkmann, K.$$b2
000008500 7001_ $$0P:(DE-Juel1)VDB73156$$aet, al$$b3$$uFZJ
000008500 773__ $$0PERI:(DE-600)1459066-9$$a10.1140/epja/i2008-10721-4$$gVol. 39, p. 281 - 289$$p281 - 289$$q39<281 - 289$$tThe @European physical journal / A$$v39$$x1434-6001$$y2009
000008500 8567_ $$uhttp://dx.doi.org/10.1140/epja/i2008-10721-4
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