000139102 001__ 139102 000139102 005__ 20250129092511.0 000139102 0247_ $$2doi$$a10.1140/epja/i2013-13041-8 000139102 0247_ $$2ISSN$$a1434-601X 000139102 0247_ $$2ISSN$$a1434-6001 000139102 0247_ $$2ISSN$$a1431-5831 000139102 0247_ $$2WOS$$aWOS:000317855000013 000139102 0247_ $$2altmetric$$aaltmetric:777327 000139102 0247_ $$2Handle$$a2128/22806 000139102 037__ $$aFZJ-2013-05110 000139102 082__ $$a530 000139102 1001_ $$0P:(DE-HGF)0$$aAbd El-Samad, S.$$b0$$eCorresponding author 000139102 245__ $$aOn the ΣN cusp in the pp → pK+Λ reaction 000139102 260__ $$aBerlin$$bSpringer$$c2013 000139102 3367_ $$2DRIVER$$aarticle 000139102 3367_ $$2DataCite$$aOutput Types/Journal article 000139102 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1568374155_29289 000139102 3367_ $$2BibTeX$$aARTICLE 000139102 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000139102 3367_ $$00$$2EndNote$$aJournal Article 000139102 520__ $$9Springer$$aMeasurements of the pp → pK (+) Λ reaction at T ( )p( ) = 2.28 GeV have been carried out at COSY-TOF. In addition to the Λp FSI and N (*) resonance excitation effects a pronounced narrow structure is observed in the Dalitz plot and in its projection on the pΛ invariant mass. The strongly asymmetric structure appears at the pp → NK (+) Σ threshold and is interpreted as the ΣN cusp effect. The observed width of about 20 MeV/c (2) is substantially broader than anticipated from previous measurements as well as theoretical predictions. Angular distributions of this cusp structure are shown to be dissimilar to those in the residual pK (+) Λ channel, but similar to those observed in the pK (+) Σ (0) channel. PDF = http://www.springerlink.com/ 000139102 536__ $$0G:(DE-HGF)POF2-531$$a531 - Hadron Structure and Dynamics (HSD) (POF2-531)$$cPOF2-531$$fPOF II$$x0 000139102 588__ $$aDataset connected to CrossRef, juser.fz-juelich.de 000139102 650_7 $$2INSPIRE$$ap Lambda: final-state interaction 000139102 650_7 $$2INSPIRE$$aangular distribution 000139102 650_7 $$2INSPIRE$$anucleon resonance 000139102 650_7 $$2INSPIRE$$anucleon Sigma: cusp effect 000139102 650_7 $$2INSPIRE$$aDalitz plot 000139102 650_7 $$2INSPIRE$$aasymmetry 000139102 650_7 $$2INSPIRE$$aCOSY-TOF 000139102 650_7 $$2INSPIRE$$ap p: exclusive reaction 000139102 650_7 $$2INSPIRE$$aLambda: hadroproduction 000139102 650_7 $$2INSPIRE$$aK+: associated production 000139102 650_7 $$2INSPIRE$$achannel cross section: measured 000139102 650_7 $$2INSPIRE$$aexperimental results 000139102 650_7 $$2INSPIRE$$aJuelich COSY PS 000139102 650_7 $$2INSPIRE$$ap p --> Lambda p K+ 000139102 650_7 $$2INSPIRE$$a2.28 GeV-kin 000139102 7001_ $$0P:(DE-Juel1)131101$$aBorodina, E.$$b1 000139102 7001_ $$0P:(DE-HGF)0$$aBrinkmann, K. -Th.$$b2 000139102 7001_ $$0P:(DE-HGF)0$$aClement, H.$$b3 000139102 7001_ $$0P:(DE-HGF)0$$aDoroshkevich, E.$$b4 000139102 7001_ $$0P:(DE-Juel1)131135$$aDzhygadlo, R.$$b5 000139102 7001_ $$0P:(DE-HGF)0$$aEhrhardt, K.$$b6 000139102 7001_ $$0P:(DE-HGF)0$$aErhardt, A.$$b7 000139102 7001_ $$0P:(DE-HGF)0$$aEyrich, W.$$b8 000139102 7001_ $$0P:(DE-HGF)0$$aFreiesleben, H.$$b9 000139102 7001_ $$0P:(DE-Juel1)131163$$aGast, W.$$b10 000139102 7001_ $$0P:(DE-Juel1)131165$$aGillitzer, A.$$b11$$ufzj 000139102 7001_ $$0P:(DE-Juel1)131172$$aGrzonka, D.$$b12$$ufzj 000139102 7001_ $$0P:(DE-Juel1)131182$$aHanhart, C.$$b13 000139102 7001_ $$0P:(DE-Juel1)144604$$aHauenstein, F.$$b14$$ufzj 000139102 7001_ $$0P:(DE-Juel1)131211$$aKlaja, P.$$b15 000139102 7001_ $$0P:(DE-Juel1)131208$$aKilian, K.$$b16$$ufzj 000139102 7001_ $$0P:(DE-HGF)0$$aKrapp, M.$$b17 000139102 7001_ $$0P:(DE-Juel1)131301$$aRitman, J.$$b18$$ufzj 000139102 7001_ $$0P:(DE-Juel1)131302$$aRoderburg, E.$$b19$$ufzj 000139102 7001_ $$0P:(DE-Juel1)131310$$aRöder, M.$$b20$$ufzj 000139102 7001_ $$0P:(DE-HGF)0$$aSchulte-Wissermann, M.$$b21 000139102 7001_ $$0P:(DE-Juel1)125381$$aSchroeder, W.$$b22$$ufzj 000139102 7001_ $$0P:(DE-Juel1)131326$$aSefzick, T.$$b23$$ufzj 000139102 7001_ $$0P:(DE-HGF)0$$aWagner, G. 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