{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.30959.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/168793"}},{"@id":"https://doi.org/10.1016/0370-2693(82)90957-1","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":[{"@type":"Person","affiliation":{"@type":"Organization","name":"Caltech"},"name":"Edwards, C."},{"@type":"Person","affiliation":{"@type":"Organization","name":"Caltech"},"name":"Partridge, Richard"},{"@type":"Person","affiliation":{"@type":"Organization","name":"Caltech"},"name":"Peck, C."},{"@type":"Person","affiliation":{"@type":"Organization","name":"Caltech"},"name":"Porter, F."},{"@type":"Person","affiliation":{"@type":"Organization","name":"Harvard U."},"name":"Antreasyan, D."},{"@type":"Person","affiliation":{"@type":"Organization","name":"Harvard U."},"name":"Gu, Y.F."},{"@type":"Person","affiliation":{"@type":"Organization","name":"Harvard U."},"name":"Kollmann, W.S."},{"@type":"Person","affiliation":{"@type":"Organization","name":"Harvard U."},"name":"Richardson, M."},{"@type":"Person","affiliation":{"@type":"Organization","name":"Harvard U."},"name":"Strauch, K."},{"@type":"Person","affiliation":{"@type":"Organization","name":"Harvard U."},"name":"Wacker, K."}],"creator":[{"@type":"Person","affiliation":{"@type":"Organization","name":"Caltech"},"name":"Edwards, C."},{"@type":"Person","affiliation":{"@type":"Organization","name":"Caltech"},"name":"Partridge, Richard"},{"@type":"Person","affiliation":{"@type":"Organization","name":"Caltech"},"name":"Peck, C."},{"@type":"Person","affiliation":{"@type":"Organization","name":"Caltech"},"name":"Porter, F."},{"@type":"Person","affiliation":{"@type":"Organization","name":"Harvard U."},"name":"Antreasyan, D."},{"@type":"Person","affiliation":{"@type":"Organization","name":"Harvard U."},"name":"Gu, Y.F."},{"@type":"Person","affiliation":{"@type":"Organization","name":"Harvard U."},"name":"Kollmann, W.S."},{"@type":"Person","affiliation":{"@type":"Organization","name":"Harvard U."},"name":"Richardson, M."},{"@type":"Person","affiliation":{"@type":"Organization","name":"Harvard U."},"name":"Strauch, K."},{"@type":"Person","affiliation":{"@type":"Organization","name":"Harvard U."},"name":"Wacker, K."}],"datePublished":"1984","description":"SLAC-SPEAR. CRYSTAL BALL DETECTOR. INVESTIGATION OF THE FOUR-PHOTON FINAL STATE IN GAMMA GAMMA COLLISIONS IN E+ E- INTERACTIONS. F(1270) RESONANCE IS OBSERVED IN THE PI0 PI0 CHANNEL WITH PREDOMINANTLY HELICITY 2 AND A MEASURE OF THE PARTIAL WIDTH TO GAMMA GAMMA IS 2.9 +0.6, -0.4 (DSYS=0.6) KEV INDEPENDENT OF ASSUMPTIONS ON HELICITY. A2(1310) RESONANCE IS OBSERVED IN THE PI0 ETA CHANNEL WITH A PARTIAL WIDTH TO GAMMA GAMMA OF 0.77 +- 0.18 (DSYS=0.27) KEV (ASSUMING HELECITY 2). AN UPPER LIMIT OF & lt;5 PCT (95 PCT CL) IS GIVEN FOR BRANCHING RATIOS OF F --& gt; ETA ETA/F --& gt; PI PI.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.30959.v1/t1","@type":"Dataset","description":"Data read from graph. Systematic error on M is of order of 2% or less.","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.30959.v1/t2","@type":"Dataset","description":"Data read from graph.","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.30959.v1/t3","@type":"Dataset","description":"No description provided.","name":"Table 3"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins168793?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/30959"}],"inLanguage":"en","name":"Production of $\\pi^0 \\pi^0$ and $\\pi^0 \\eta$ in Photon - Photon Collisions","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins168793?version=1","version":1}