{"id":"https://openalex.org/W2024869552","doi":"https://doi.org/10.1103/physrev.118.1364","title":"Pion Production by Pions","display_name":"Pion Production by Pions","publication_year":1960,"publication_date":"1960-06-01","ids":{"openalex":"https://openalex.org/W2024869552","doi":"https://doi.org/10.1103/physrev.118.1364","mag":"2024869552"},"language":"en","primary_location":{"id":"doi:10.1103/physrev.118.1364","doi":"https://doi.org/10.1103/physrev.118.1364","is_oa":false,"landing_page_url":"https://doi.org/10.1103/physrev.118.1364","pdf_url":null,"source":{"id":"https://openalex.org/S54862371","display_name":"Physical Review","issn_l":"0031-899X","issn":["0031-899X","1536-6065"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310320261","host_organization_name":"American Physical Society","host_organization_lineage":["https://openalex.org/P4310320261"],"host_organization_lineage_names":["American Physical Society"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Physical Review","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://escholarship.org/uc/item/1723h4sn","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5113638410","display_name":"Walton A. Perkins","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I148283060","display_name":"Lawrence Berkeley National Laboratory","ror":"https://ror.org/02jbv0t02","country_code":"US","type":"facility","lineage":["https://openalex.org/I1330989302","https://openalex.org/I148283060","https://openalex.org/I39565521"]},{"id":"https://openalex.org/I95457486","display_name":"University of California, Berkeley","ror":"https://ror.org/01an7q238","country_code":"US","type":"education","lineage":["https://openalex.org/I95457486"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Walton A. Perkins","raw_affiliation_strings":["Lawrence Radiation Laboratory, University, of California, Berkeley, California"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Lawrence Radiation Laboratory, University, of California, Berkeley, California","institution_ids":["https://openalex.org/I148283060","https://openalex.org/I95457486"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5011699381","display_name":"John C. Caris","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I148283060","display_name":"Lawrence Berkeley National Laboratory","ror":"https://ror.org/02jbv0t02","country_code":"US","type":"facility","lineage":["https://openalex.org/I1330989302","https://openalex.org/I148283060","https://openalex.org/I39565521"]},{"id":"https://openalex.org/I95457486","display_name":"University of California, Berkeley","ror":"https://ror.org/01an7q238","country_code":"US","type":"education","lineage":["https://openalex.org/I95457486"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"John C. Caris","raw_affiliation_strings":["Lawrence Radiation Laboratory, University, of California, Berkeley, California"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Lawrence Radiation Laboratory, University, of California, Berkeley, California","institution_ids":["https://openalex.org/I148283060","https://openalex.org/I95457486"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5063410535","display_name":"Robert W. Kenney","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I148283060","display_name":"Lawrence Berkeley National Laboratory","ror":"https://ror.org/02jbv0t02","country_code":"US","type":"facility","lineage":["https://openalex.org/I1330989302","https://openalex.org/I148283060","https://openalex.org/I39565521"]},{"id":"https://openalex.org/I95457486","display_name":"University of California, Berkeley","ror":"https://ror.org/01an7q238","country_code":"US","type":"education","lineage":["https://openalex.org/I95457486"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Robert W. Kenney","raw_affiliation_strings":["Lawrence Radiation Laboratory, University, of California, Berkeley, California"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Lawrence Radiation Laboratory, University, of California, Berkeley, California","institution_ids":["https://openalex.org/I148283060","https://openalex.org/I95457486"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5113432052","display_name":"V. Perez-Mendez","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I148283060","display_name":"Lawrence Berkeley National Laboratory","ror":"https://ror.org/02jbv0t02","country_code":"US","type":"facility","lineage":["https://openalex.org/I1330989302","https://openalex.org/I148283060","https://openalex.org/I39565521"]},{"id":"https://openalex.org/I95457486","display_name":"University of California, Berkeley","ror":"https://ror.org/01an7q238","country_code":"US","type":"education","lineage":["https://openalex.org/I95457486"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Victor Perez-Mendez","raw_affiliation_strings":["Lawrence Radiation Laboratory, University, of California, Berkeley, California"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Lawrence Radiation Laboratory, University, of California, Berkeley, California","institution_ids":["https://openalex.org/I148283060","https://openalex.org/I95457486"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":5.8385,"has_fulltext":true,"cited_by_count":45,"citation_normalized_percentile":{"value":0.96386202,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":88,"max":93},"biblio":{"volume":"118","issue":"5","first_page":"1364","last_page":"1370"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10048","display_name":"Particle physics theoretical and experimental studies","score":0.423799991607666,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10048","display_name":"Particle physics theoretical and experimental studies","score":0.423799991607666,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10224","display_name":"Quantum Chromodynamics and Particle Interactions","score":0.36039999127388,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10093","display_name":"Nuclear physics research studies","score":0.14110000431537628,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/pion-production","display_name":"pion production","score":0.8500000238418579},{"id":"https://openalex.org/keywords/negative-pion","display_name":"negative pion","score":0.7559999823570251},{"id":"https://openalex.org/keywords/positive-pion","display_name":"positive pion","score":0.7730000019073486},{"id":"https://openalex.org/keywords/pion-nucleon-scattering","display_name":"pion-nucleon scattering","score":0.7390000224113464},{"id":"https://openalex.org/keywords/differential-cross-section","display_name":"differential cross section","score":0.8870000243186951},{"id":"https://openalex.org/keywords/angular-distributions","display_name":"angular distributions","score":0.640999972820282},{"id":"https://openalex.org/keywords/total-cross-section","display_name":"total cross section","score":0.9340000152587891},{"id":"https://openalex.org/keywords/pion-pion-interaction","display_name":"pion-pion interaction","score":0.8740000128746033},{"id":"https://openalex.org/keywords/liquid-hydrogen-target","display_name":"liquid hydrogen target","score":0.8009999990463257},{"id":"https://openalex.org/keywords/static-model","display_name":"static model","score":0.4429999887943268}],"concepts":[{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.9147072434425354},{"id":"https://openalex.org/C206094082","wikidata":"https://www.wikidata.org/wiki/Q4097","display_name":"Pion","level":2,"score":0.8775061368942261},{"id":"https://openalex.org/C200006409","wikidata":"https://www.wikidata.org/wiki/Q102742","display_name":"Meson","level":2,"score":0.6466363072395325},{"id":"https://openalex.org/C109214941","wikidata":"https://www.wikidata.org/wiki/Q18334","display_name":"Particle physics","level":1,"score":0.5534216165542603},{"id":"https://openalex.org/C185544564","wikidata":"https://www.wikidata.org/wiki/Q81197","display_name":"Nuclear physics","level":1,"score":0.5165959596633911},{"id":"https://openalex.org/C2778348673","wikidata":"https://www.wikidata.org/wiki/Q739302","display_name":"Production (economics)","level":2,"score":0.4169030487537384},{"id":"https://openalex.org/C184779094","wikidata":"https://www.wikidata.org/wiki/Q26383","display_name":"Atomic physics","level":1,"score":0.3961560130119324},{"id":"https://openalex.org/C139719470","wikidata":"https://www.wikidata.org/wiki/Q39680","display_name":"Macroeconomics","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0}],"mesh":[],"locations_count":5,"locations":[{"id":"doi:10.1103/physrev.118.1364","doi":"https://doi.org/10.1103/physrev.118.1364","is_oa":false,"landing_page_url":"https://doi.org/10.1103/physrev.118.1364","pdf_url":null,"source":{"id":"https://openalex.org/S54862371","display_name":"Physical Review","issn_l":"0031-899X","issn":["0031-899X","1536-6065"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310320261","host_organization_name":"American Physical Society","host_organization_lineage":["https://openalex.org/P4310320261"],"host_organization_lineage_names":["American Physical Society"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Physical Review","raw_type":"journal-article"},{"id":"pmh:oai:escholarship.org/ark:/13030/qt1723h4sn","doi":null,"is_oa":true,"landing_page_url":"https://escholarship.org/uc/item/1723h4sn","pdf_url":"https://escholarship.org/uc/item/1723h4sn","source":{"id":"https://openalex.org/S4306400115","display_name":"eScholarship (California Digital Library)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I2801248553","host_organization_name":"California Digital Library","host_organization_lineage":["https://openalex.org/I2801248553"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"article"},{"id":"pmh:oai:escholarship.org/ark:/13030/qt9s17421j","doi":null,"is_oa":true,"landing_page_url":"https://escholarship.org/uc/item/9s17421j","pdf_url":"https://escholarship.org/uc/item/9s17421j","source":{"id":"https://openalex.org/S4306400115","display_name":"eScholarship (California Digital Library)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I2801248553","host_organization_name":"California Digital Library","host_organization_lineage":["https://openalex.org/I2801248553"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"article"},{"id":"pmh:qt1723h4sn","doi":null,"is_oa":false,"landing_page_url":"http://www.escholarship.org/uc/item/1723h4sn","pdf_url":null,"source":{"id":"https://openalex.org/S4306400115","display_name":"eScholarship (California Digital Library)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I2801248553","host_organization_name":"California Digital Library","host_organization_lineage":["https://openalex.org/I2801248553"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Perkins, Walton A.; Caris, John C; Kenney, Robert W.; & Perez-Mendez, Victor.(1959). PION PRODUCTION BY PIONS. Lawrence Berkeley National Laboratory: Lawrence Berkeley National Laboratory. Retrieved from: http://www.escholarship.org/uc/item/1723h4sn","raw_type":"article"},{"id":"pmh:qt9s17421j","doi":null,"is_oa":false,"landing_page_url":"http://www.escholarship.org/uc/item/9s17421j","pdf_url":null,"source":{"id":"https://openalex.org/S4306400115","display_name":"eScholarship (California Digital Library)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I2801248553","host_organization_name":"California Digital Library","host_organization_lineage":["https://openalex.org/I2801248553"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Perkins, Walton A.; Caris, John C.; Kenney, Robert W.; Knapp, Edward A.; & Perez-Mendez, Victor.(1959). PION PRODUCTION BY PIONS. Lawrence Berkeley National Laboratory: Lawrence Berkeley National Laboratory. Retrieved from: http://www.escholarship.org/uc/item/9s17421j","raw_type":"article"}],"best_oa_location":{"id":"pmh:oai:escholarship.org/ark:/13030/qt1723h4sn","doi":null,"is_oa":true,"landing_page_url":"https://escholarship.org/uc/item/1723h4sn","pdf_url":"https://escholarship.org/uc/item/1723h4sn","source":{"id":"https://openalex.org/S4306400115","display_name":"eScholarship (California Digital Library)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I2801248553","host_organization_name":"California Digital Library","host_organization_lineage":["https://openalex.org/I2801248553"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"article"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2024869552.pdf","grobid_xml":"https://content.openalex.org/works/W2024869552.grobid-xml"},"referenced_works_count":27,"referenced_works":["https://openalex.org/W325941429","https://openalex.org/W1966601557","https://openalex.org/W1984336294","https://openalex.org/W1989453629","https://openalex.org/W1993446742","https://openalex.org/W1993470942","https://openalex.org/W1999670689","https://openalex.org/W2001097958","https://openalex.org/W2006418027","https://openalex.org/W2012521979","https://openalex.org/W2021970902","https://openalex.org/W2026296895","https://openalex.org/W2031885723","https://openalex.org/W2051468594","https://openalex.org/W2057339870","https://openalex.org/W2062808045","https://openalex.org/W2067261661","https://openalex.org/W2067304093","https://openalex.org/W2077250841","https://openalex.org/W2087610915","https://openalex.org/W2259019057","https://openalex.org/W2271403006","https://openalex.org/W2273672719","https://openalex.org/W2277543535","https://openalex.org/W2281717231","https://openalex.org/W2319388536","https://openalex.org/W2564247338"],"related_works":["https://openalex.org/W2152368553","https://openalex.org/W1657499854","https://openalex.org/W2035135663","https://openalex.org/W2070299847","https://openalex.org/W1979433760","https://openalex.org/W1991631153","https://openalex.org/W2046347727","https://openalex.org/W6902991211","https://openalex.org/W2023039174","https://openalex.org/W6902594769"],"abstract_inverted_index":{"A":[0],"liquid":[1],"hydrogen":[2],"target":[3],"was":[4,65],"bombarded":[5],"by":[6,25,36,147],"negative":[7],"pions":[8,18],"of":[9,28,150],"energies":[10],"260,":[11],"317,":[12,56],"371,":[13,57],"and":[14,58,75,89,119],"427":[15,59,97,123],"Mev.":[16,98,124],"Positive":[17],"from":[19],"the":[20,26,34,42,52,61,78,134,139,148,155],"reaction":[21],"${\\ensuremath{\\pi}}^{\\ensuremath{-}}+p\\ensuremath{\\rightarrow}{\\ensuremath{\\pi}}^{+}+{\\ensuremath{\\pi}}^{\\ensuremath{-}}+n$":[22],"were":[23,47],"detected":[24],"use":[27],"a":[29,128,151],"counter":[30],"telescope,":[31],"that":[32],"selected":[33],"${\\ensuremath{\\pi}}^{+}$":[35,45,68],"its":[37],"characteristic":[38],"$\\ensuremath{\\pi}\\ensuremath{-}\\ensuremath{\\mu}$":[39],"decay.":[40],"With":[41],"260-Mev":[43],"beam,":[44],"mesons":[46,69],"counted":[48],"at":[49,71,87,96,106,111,116,122],"90\\ifmmode^\\circ\\else\\textdegree\\fi{}":[50],"in":[51,77,154],"laboratory":[53],"system.":[54,80],"At":[55],"Mev,":[60,108,113,118],"differential":[62],"cross":[63,101,131],"section":[64,132],"measured":[66],"for":[67],"emitted":[70],"60\\ifmmode^\\circ\\else\\textdegree\\fi{},":[72],"90\\ifmmode^\\circ\\else\\textdegree\\fi{},":[73],"125\\ifmmode^\\circ\\else\\textdegree\\fi{},":[74],"160\\ifmmode^\\circ\\else\\textdegree\\fi{}":[76],"center-of-mass":[79],"The":[81,99],"angular":[82],"distributions":[83],"are":[84,93,103],"nearly":[85],"isotropic":[86],"317":[88,112],"371":[90,117],"Mev":[91],"but":[92],"peaked":[94],"forward":[95],"total":[100],"sections":[102],"0.14\\ifmmode\\pm\\else\\textpm\\fi{}0.10":[104],"mb":[105,110,115,121],"260":[107],"0.71\\ifmmode\\pm\\else\\textpm\\fi{}0.17":[109],"1.93\\ifmmode\\pm\\else\\textpm\\fi{}0.37":[114],"3.36\\ifmmode\\pm\\else\\textpm\\fi{}0.74":[120],"These":[125],"results":[126],"indicate":[127],"much":[129],"larger":[130],"than":[133],"theoretical":[135],"prediction":[136],"based":[137],"on":[138],"static":[140],"model.":[141],"Reasonable":[142],"agreement":[143],"can":[144],"be":[145],"obtained":[146],"inclusion":[149],"pion-pion":[152],"interaction":[153],"production":[156],"mechanism.":[157]},"counts_by_year":[{"year":2020,"cited_by_count":1}],"updated_date":"2026-10-30T12:39:25.321706","created_date":"2016-06-24T00:00:00"}