000189845 001__ 189845
000189845 005__ 20210129215449.0
000189845 037__ $$aFZJ-2015-02851
000189845 1001_ $$0P:(DE-Juel1)159209$$aZurek, Maria$$b0$$eCorresponding Author$$ufzj
000189845 1112_ $$aDPG-Frühjahrstagung Heidelberg 2015$$cHeidelberg$$d2015-03-23 - 2015-03-27$$wGermany
000189845 245__ $$aCharge Symmetry Breaking in the $dd \rightarrow\,^{4}\mathrm{He}\pi^{0}$ Reaction with WASA-at-COSY
000189845 260__ $$c2015
000189845 3367_ $$0PUB:(DE-HGF)6$$2PUB:(DE-HGF)$$aConference Presentation$$bconf$$mconf$$s1435058924_32633$$xOther
000189845 3367_ $$033$$2EndNote$$aConference Paper
000189845 3367_ $$2DataCite$$aOther
000189845 3367_ $$2ORCID$$aLECTURE_SPEECH
000189845 3367_ $$2DRIVER$$aconferenceObject
000189845 3367_ $$2BibTeX$$aINPROCEEDINGS
000189845 520__ $$aInvestigations of charge symmetry breaking is one of the key topics for the WASA-at-COSY experiment. The study concentrates on the charge symmetry forbidden $dd \rightarrow\,^{4}\mathrm{He}\pi^{0}$ reaction. The aim is to compare the experimental results with Chiral Perturbation Theory predictions, probing hadronic effects of the up and down quarks mass difference. It was found that previous data taken close to the reaction threshold were consistent with $s$-wave. In order to probe also $p$-wave contributions, new data at sufficiently high energy were required. The measurement should comprise the charge symmetry forbidden $dd \rightarrow\,^{4}\mathrm{He}\pi^{0}$ reaction and the charge symmetry conserving reaction $dd \rightarrow\,^{3}\mathrm{He}n\pi^{0}$ to provide additionally the experimental input for the description of the initial state interactions. Results on the $dd \rightarrow\,^{3}\mathrm{He}n\pi^{0}$ and $dd \rightarrow\,^{4}\mathrm{He}\pi^{0}$ reactions with the WASA detector setup at a beam momentumof 1.2 GeV/$c$ will be presented. In addition, the status of the recent high statistics run in spring 2014 will be discussed.
000189845 536__ $$0G:(DE-HGF)POF3-631$$a631 - Accelerator R & D (POF3-631)$$cPOF3-631$$fPOF III$$x0
000189845 693__ $$0EXP:(DE-Juel1)WASA-at-COSY-20170712$$5EXP:(DE-Juel1)WASA-at-COSY-20170712$$eWASA (Wide Angle Shower Apparatus) at COSY$$x0
000189845 773__ $$y2015
000189845 909CO $$ooai:juser.fz-juelich.de:189845$$pVDB
000189845 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)159209$$aForschungszentrum Jülich GmbH$$b0$$kFZJ
000189845 9130_ $$0G:(DE-HGF)POF2-531$$1G:(DE-HGF)POF2-530$$2G:(DE-HGF)POF2-500$$aDE-HGF$$bStruktur der Materie$$lPhysik der Hadronen und Kerne$$vHadron Structure and Dynamics (HSD)$$x0
000189845 9130_ $$0G:(DE-HGF)POF2-53G32$$1G:(DE-HGF)POF2-530$$2G:(DE-HGF)POF2-500$$aDE-HGF$$bStruktur der Materie$$lPhysik der Hadronen und Kerne$$vCOSY$$x1
000189845 9131_ $$0G:(DE-HGF)POF3-631$$1G:(DE-HGF)POF3-630$$2G:(DE-HGF)POF3-600$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bForschungsbereich Materie$$lMaterie und Technologie$$vAccelerator R & D$$x0
000189845 9141_ $$y2015
000189845 920__ $$lyes
000189845 9201_ $$0I:(DE-Juel1)IKP-2-20111104$$kIKP-2$$lExperimentelle Hadrondynamik$$x0
000189845 980__ $$aconf
000189845 980__ $$aVDB
000189845 980__ $$aI:(DE-Juel1)IKP-2-20111104
000189845 980__ $$aUNRESTRICTED