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000019480 0247_ $$2DOI$$a10.1140/epja/i2011-11093-4
000019480 0247_ $$2WOS$$aWOS:000295170900010
000019480 0247_ $$2arXiv$$aarXiv:1107.4278$$chep-ex
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000019480 035__ $$9arXiv$$aarXiv:1107.4278$$chep-ex
000019480 037__ $$aPreJuSER-19480
000019480 041__ $$aeng
000019480 082__ $$a530
000019480 084__ $$2WoS$$aPhysics, Nuclear
000019480 084__ $$2WoS$$aPhysics, Particles & Fields
000019480 084__ $$2PACS$$a13.60.Le
000019480 084__ $$2PACS$$a13.75.-n
000019480 084__ $$2PACS$$a13.85.Lg
000019480 084__ $$2PACS$$a25.40.-h
000019480 084__ $$2PACS$$a29.20.Dh
000019480 1001_ $$0P:(DE-HGF)0$$aZielinski, M. J.$$b0
000019480 245__ $$aReaction pp -> pp pi pi pi as a background for hadronic decays of the eta ' meson
000019480 260__ $$aBerlin$$bSpringer$$c2011
000019480 300__ $$a93
000019480 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article
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000019480 440_0 $$01981$$aEuropean Physical Journal A$$v47$$x1434-6001$$y8
000019480 500__ $$aThe work was partially supported by the European Commission through the Research Infrastructures action of the Capacities Program. Call: FP7-INFRASTRUCTURES-2008-1, Grant Agreement No. 227431, by the PrimeNet, by the FFE grants from the Research Center Julich, by the MPD programme of the Foundation for Polish Science through structural funds of the European Union and by the DOCTUS programme of Malopolskie Centre of Entrepreneurship through structural funds of the European Union.
000019480 520__ $$aIsospin violating hadronic decays of the eta and eta ' mesons into 3 pi mesons are driven by a term in the QCD Lagrangian proportional to the mass difference of the d and u quarks. The source giving large yield of the mesons for such decay studies are pp interactions close to the respective kinematical thresholds. The most important physics background for eta, eta ' -> pi pi pi is coming from direct three-pion production reactions. In case of the eta meson the background for the decays is relatively low (approximate to 10%). The purpose of this article is to provide an estimate of the direct pion production background for the eta ' -> 3 pi decays. Using the inclusive data from the COSY-11 experiment we have extracted the differential cross-section for the pp -> pp-multipion production reactions with the invariant mass of the pions equal to the eta ' meson mass and estimated an upper limit for the signal to background ratio for studies of the eta ' -> pi(+)pi(-)pi(0)decay.
000019480 536__ $$0G:(DE-Juel1)FUEK413$$2G:(DE-HGF)$$aPhysik der Hadronen und Kerne$$cP53$$x0
000019480 536__ $$0G:(EU-Grant)227431$$aHADRONPHYSICS2 - Study of Strongly Interacting Matter (227431)$$c227431$$fFP7-INFRASTRUCTURES-2008-1$$x1
000019480 588__ $$aDataset connected to Web of Science
000019480 650_7 $$2INSPIRE$$abackground: upper limit
000019480 650_7 $$2INSPIRE$$aeta(958): rare decay
000019480 650_7 $$2INSPIRE$$api: multiple production
000019480 650_7 $$2INSPIRE$$aisospin: violation
000019480 650_7 $$2INSPIRE$$adifferential cross section
000019480 650_7 $$2INSPIRE$$amissing-mass
000019480 650_7 $$2INSPIRE$$akinematics
000019480 650_7 $$2INSPIRE$$aCOSY-11
000019480 650_7 $$2INSPIRE$$ap p: inelastic scattering
000019480 650_7 $$2INSPIRE$$aeta: hadroproduction
000019480 650_7 $$2INSPIRE$$athreshold
000019480 650_7 $$2INSPIRE$$amass spectrum: (3pi)
000019480 650_7 $$2INSPIRE$$achannel cross section: energy dependence
000019480 650_7 $$2INSPIRE$$aexperimental results
000019480 650_7 $$2INSPIRE$$aJuelich COSY PS
000019480 650_7 $$2INSPIRE$$ap p --> 2p anything
000019480 650_7 $$2INSPIRE$$ap p --> 2p pi+ pi- pi0
000019480 650_7 $$2INSPIRE$$aeta --> pi+ pi- pi0
000019480 7001_ $$0P:(DE-Juel1)VDB1093$$aMoskal, P.$$b1$$uFZJ
000019480 7001_ $$0P:(DE-HGF)0$$aKupsc, A.$$b2
000019480 773__ $$0PERI:(DE-600)1459066-9$$a10.1140/epja/i2011-11093-4$$gVol. 47, p. 93$$p93$$q47<93$$tThe @European physical journal / A$$v47$$x1434-6001$$y2011
000019480 8567_ $$uhttp://dx.doi.org/10.1140/epja/i2011-11093-4
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000019480 9132_ $$0G:(DE-HGF)POF3-612$$1G:(DE-HGF)POF3-610$$2G:(DE-HGF)POF3-600$$aDE-HGF$$bForschungsbereich Materie$$lMaterie und Universum$$vCosmic Matter in the Laboratory$$x0
000019480 9141_ $$y2011
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