Branching ratio for the rare pion decay into positron and neutrino
A new precision measurement of the branching ratio of the rare pion decay into a positron and a neutrino ([pi][r arrow][ital e][nu]) has been completed. A beam of positive pions was stopped in an active target of plastic scintillator surrounded by a 4[pi] BGO calorimeter. 3[times]10[sup 5] rare deca...
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| Veröffentlicht in: | Physical review letters 1993-01, Vol.70 (1), p.17-20 |
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| creator | CZAPEK, G FEDERSPIEL, A RAMSEYER, E SCHEIDIGER, H SCHLATTER, P STUCKI, G ABELA, R RENKER, D STEINER, E FLÜCKIGER, A FREI, D HAHN, B HUG, C HUGNETOBLER, E KREBS, W MOSER, U MUSTER, D |
| description | A new precision measurement of the branching ratio of the rare pion decay into a positron and a neutrino ([pi][r arrow][ital e][nu]) has been completed. A beam of positive pions was stopped in an active target of plastic scintillator surrounded by a 4[pi] BGO calorimeter. 3[times]10[sup 5] rare decays and 1.2[times]10[sup 6] normal pion decays ([pi][r arrow][mu][nu]) were recorded. The branching ratio was finally calculated from 1.2[times]10[sup 5] rare decays after various cuts in the time window from 7.5 to 200 ns after pion stop. The errors of the result (1.235[plus minus]0.005)[times]10[sup [minus]4] are 0.28% statistical and 0.29% systematical. |
| doi_str_mv | 10.1103/PhysRevLett.70.17 |
| format | Article |
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A beam of positive pions was stopped in an active target of plastic scintillator surrounded by a 4[pi] BGO calorimeter. 3[times]10[sup 5] rare decays and 1.2[times]10[sup 6] normal pion decays ([pi][r arrow][mu][nu]) were recorded. The branching ratio was finally calculated from 1.2[times]10[sup 5] rare decays after various cuts in the time window from 7.5 to 200 ns after pion stop. The errors of the result (1.235[plus minus]0.005)[times]10[sup [minus]4] are 0.28% statistical and 0.29% systematical.</description><identifier>ISSN: 0031-9007</identifier><identifier>EISSN: 1079-7114</identifier><identifier>DOI: 10.1103/PhysRevLett.70.17</identifier><identifier>PMID: 10053247</identifier><identifier>CODEN: PRLTAO</identifier><language>eng</language><publisher>Ridge, NY: American Physical Society</publisher><subject>ACCURACY ; ANTILEPTONS ; ANTIMATTER ; ANTIPARTICLES ; BASIC INTERACTIONS ; BOSONS ; BRANCHING RATIO ; CALCULATION METHODS ; CALIBRATION ; CALORIMETERS ; DECAY ; ELEMENTARY PARTICLES ; Exact sciences and technology ; FERMIONS ; HADRONS ; INTERACTIONS ; Leptonic and semileptonic decays of mesons ; LEPTONIC DECAY ; LEPTONS ; MASSLESS PARTICLES ; MATTER ; MEASURING INSTRUMENTS ; MEASURING METHODS ; MESONS ; MONTE CARLO METHOD ; NEUTRINOS ; PARTICLE DECAY ; Physics ; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS ; PIONS ; POSITRONS ; PSEUDOSCALAR MESONS ; RADIATIVE DECAY ; Specific reactions and phenomenology ; The physics of elementary particles and fields ; WEAK INTERACTIONS ; WEAK PARTICLE DECAY 662350 -- Decays of Mesons-- (1992-)</subject><ispartof>Physical review letters, 1993-01, Vol.70 (1), p.17-20</ispartof><rights>1993 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c398t-e948bba92758c992708932233275d41b97adde476c774a874a6fe0c504efd7583</citedby><cites>FETCH-LOGICAL-c398t-e948bba92758c992708932233275d41b97adde476c774a874a6fe0c504efd7583</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,776,780,881,2863,2864,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=4528252$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/10053247$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/6832299$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>CZAPEK, G</creatorcontrib><creatorcontrib>FEDERSPIEL, A</creatorcontrib><creatorcontrib>RAMSEYER, E</creatorcontrib><creatorcontrib>SCHEIDIGER, H</creatorcontrib><creatorcontrib>SCHLATTER, P</creatorcontrib><creatorcontrib>STUCKI, G</creatorcontrib><creatorcontrib>ABELA, R</creatorcontrib><creatorcontrib>RENKER, D</creatorcontrib><creatorcontrib>STEINER, E</creatorcontrib><creatorcontrib>FLÜCKIGER, A</creatorcontrib><creatorcontrib>FREI, D</creatorcontrib><creatorcontrib>HAHN, B</creatorcontrib><creatorcontrib>HUG, C</creatorcontrib><creatorcontrib>HUGNETOBLER, E</creatorcontrib><creatorcontrib>KREBS, W</creatorcontrib><creatorcontrib>MOSER, U</creatorcontrib><creatorcontrib>MUSTER, D</creatorcontrib><title>Branching ratio for the rare pion decay into positron and neutrino</title><title>Physical review letters</title><addtitle>Phys Rev Lett</addtitle><description>A new precision measurement of the branching ratio of the rare pion decay into a positron and a neutrino ([pi][r arrow][ital e][nu]) has been completed. A beam of positive pions was stopped in an active target of plastic scintillator surrounded by a 4[pi] BGO calorimeter. 3[times]10[sup 5] rare decays and 1.2[times]10[sup 6] normal pion decays ([pi][r arrow][mu][nu]) were recorded. The branching ratio was finally calculated from 1.2[times]10[sup 5] rare decays after various cuts in the time window from 7.5 to 200 ns after pion stop. The errors of the result (1.235[plus minus]0.005)[times]10[sup [minus]4] are 0.28% statistical and 0.29% systematical.</description><subject>ACCURACY</subject><subject>ANTILEPTONS</subject><subject>ANTIMATTER</subject><subject>ANTIPARTICLES</subject><subject>BASIC INTERACTIONS</subject><subject>BOSONS</subject><subject>BRANCHING RATIO</subject><subject>CALCULATION METHODS</subject><subject>CALIBRATION</subject><subject>CALORIMETERS</subject><subject>DECAY</subject><subject>ELEMENTARY PARTICLES</subject><subject>Exact sciences and technology</subject><subject>FERMIONS</subject><subject>HADRONS</subject><subject>INTERACTIONS</subject><subject>Leptonic and semileptonic decays of mesons</subject><subject>LEPTONIC DECAY</subject><subject>LEPTONS</subject><subject>MASSLESS PARTICLES</subject><subject>MATTER</subject><subject>MEASURING INSTRUMENTS</subject><subject>MEASURING METHODS</subject><subject>MESONS</subject><subject>MONTE CARLO METHOD</subject><subject>NEUTRINOS</subject><subject>PARTICLE DECAY</subject><subject>Physics</subject><subject>PHYSICS OF ELEMENTARY PARTICLES AND FIELDS</subject><subject>PIONS</subject><subject>POSITRONS</subject><subject>PSEUDOSCALAR MESONS</subject><subject>RADIATIVE DECAY</subject><subject>Specific reactions and phenomenology</subject><subject>The physics of elementary particles and fields</subject><subject>WEAK INTERACTIONS</subject><subject>WEAK PARTICLE DECAY 662350 -- Decays of Mesons-- (1992-)</subject><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1993</creationdate><recordtype>article</recordtype><recordid>eNpNkEtLAzEUhYMoWh8_wI0M4sLN1JvJzCRZWvEFBUV0HdLMHRtpk5pkhP57Iy3SxeVwD985i0PIOYUxpcBuXufr-IY_U0xpzLPH98iIApclp7TeJyMARksJwI_IcYxfAECrVhySIwrQsKrmIzKZBO3M3LrPIuhkfdH7UKQ55i9gsbLeFR0avS6sS75Y-WhTyJ52XeFwSME6f0oOer2IeLbVE_LxcP9-91ROXx6f726npWFSpBJlLWYzLSveCCOzgJCsqhjLRlfTmeS667DmreG81iJf2yOYBmrsu5xhJ-Ry0-tjsioam9DMjXcOTVKtyF1SZuh6A62C_x4wJrW00eBioR36ISoqGsmAthwySjeoCT7GgL1aBbvUYa0oqL991c6-imeP58zFtn6YLbHbSWwGzcDVFtDR6EX_t66N_1zdVKJqKvYLR5mEJQ</recordid><startdate>19930104</startdate><enddate>19930104</enddate><creator>CZAPEK, G</creator><creator>FEDERSPIEL, A</creator><creator>RAMSEYER, E</creator><creator>SCHEIDIGER, H</creator><creator>SCHLATTER, P</creator><creator>STUCKI, G</creator><creator>ABELA, R</creator><creator>RENKER, D</creator><creator>STEINER, E</creator><creator>FLÜCKIGER, A</creator><creator>FREI, D</creator><creator>HAHN, B</creator><creator>HUG, C</creator><creator>HUGNETOBLER, E</creator><creator>KREBS, W</creator><creator>MOSER, U</creator><creator>MUSTER, D</creator><general>American Physical Society</general><scope>IQODW</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>OTOTI</scope></search><sort><creationdate>19930104</creationdate><title>Branching ratio for the rare pion decay into positron and neutrino</title><author>CZAPEK, G ; FEDERSPIEL, A ; RAMSEYER, E ; SCHEIDIGER, H ; SCHLATTER, P ; STUCKI, G ; ABELA, R ; RENKER, D ; STEINER, E ; FLÜCKIGER, A ; FREI, D ; HAHN, B ; HUG, C ; HUGNETOBLER, E ; KREBS, W ; MOSER, U ; MUSTER, D</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c398t-e948bba92758c992708932233275d41b97adde476c774a874a6fe0c504efd7583</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1993</creationdate><topic>ACCURACY</topic><topic>ANTILEPTONS</topic><topic>ANTIMATTER</topic><topic>ANTIPARTICLES</topic><topic>BASIC INTERACTIONS</topic><topic>BOSONS</topic><topic>BRANCHING RATIO</topic><topic>CALCULATION METHODS</topic><topic>CALIBRATION</topic><topic>CALORIMETERS</topic><topic>DECAY</topic><topic>ELEMENTARY PARTICLES</topic><topic>Exact sciences and technology</topic><topic>FERMIONS</topic><topic>HADRONS</topic><topic>INTERACTIONS</topic><topic>Leptonic and semileptonic decays of mesons</topic><topic>LEPTONIC DECAY</topic><topic>LEPTONS</topic><topic>MASSLESS PARTICLES</topic><topic>MATTER</topic><topic>MEASURING INSTRUMENTS</topic><topic>MEASURING METHODS</topic><topic>MESONS</topic><topic>MONTE CARLO METHOD</topic><topic>NEUTRINOS</topic><topic>PARTICLE DECAY</topic><topic>Physics</topic><topic>PHYSICS OF ELEMENTARY PARTICLES AND FIELDS</topic><topic>PIONS</topic><topic>POSITRONS</topic><topic>PSEUDOSCALAR MESONS</topic><topic>RADIATIVE DECAY</topic><topic>Specific reactions and phenomenology</topic><topic>The physics of elementary particles and fields</topic><topic>WEAK INTERACTIONS</topic><topic>WEAK PARTICLE DECAY 662350 -- Decays of Mesons-- (1992-)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>CZAPEK, G</creatorcontrib><creatorcontrib>FEDERSPIEL, A</creatorcontrib><creatorcontrib>RAMSEYER, E</creatorcontrib><creatorcontrib>SCHEIDIGER, H</creatorcontrib><creatorcontrib>SCHLATTER, P</creatorcontrib><creatorcontrib>STUCKI, G</creatorcontrib><creatorcontrib>ABELA, R</creatorcontrib><creatorcontrib>RENKER, D</creatorcontrib><creatorcontrib>STEINER, E</creatorcontrib><creatorcontrib>FLÜCKIGER, A</creatorcontrib><creatorcontrib>FREI, D</creatorcontrib><creatorcontrib>HAHN, B</creatorcontrib><creatorcontrib>HUG, C</creatorcontrib><creatorcontrib>HUGNETOBLER, E</creatorcontrib><creatorcontrib>KREBS, W</creatorcontrib><creatorcontrib>MOSER, U</creatorcontrib><creatorcontrib>MUSTER, D</creatorcontrib><collection>Pascal-Francis</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>OSTI.GOV</collection><jtitle>Physical review letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>CZAPEK, G</au><au>FEDERSPIEL, A</au><au>RAMSEYER, E</au><au>SCHEIDIGER, H</au><au>SCHLATTER, P</au><au>STUCKI, G</au><au>ABELA, R</au><au>RENKER, D</au><au>STEINER, E</au><au>FLÜCKIGER, A</au><au>FREI, D</au><au>HAHN, B</au><au>HUG, C</au><au>HUGNETOBLER, E</au><au>KREBS, W</au><au>MOSER, U</au><au>MUSTER, D</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Branching ratio for the rare pion decay into positron and neutrino</atitle><jtitle>Physical review letters</jtitle><addtitle>Phys Rev Lett</addtitle><date>1993-01-04</date><risdate>1993</risdate><volume>70</volume><issue>1</issue><spage>17</spage><epage>20</epage><pages>17-20</pages><issn>0031-9007</issn><eissn>1079-7114</eissn><coden>PRLTAO</coden><abstract>A new precision measurement of the branching ratio of the rare pion decay into a positron and a neutrino ([pi][r arrow][ital e][nu]) has been completed. A beam of positive pions was stopped in an active target of plastic scintillator surrounded by a 4[pi] BGO calorimeter. 3[times]10[sup 5] rare decays and 1.2[times]10[sup 6] normal pion decays ([pi][r arrow][mu][nu]) were recorded. The branching ratio was finally calculated from 1.2[times]10[sup 5] rare decays after various cuts in the time window from 7.5 to 200 ns after pion stop. The errors of the result (1.235[plus minus]0.005)[times]10[sup [minus]4] are 0.28% statistical and 0.29% systematical.</abstract><cop>Ridge, NY</cop><pub>American Physical Society</pub><pmid>10053247</pmid><doi>10.1103/PhysRevLett.70.17</doi><tpages>4</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0031-9007 |
| ispartof | Physical review letters, 1993-01, Vol.70 (1), p.17-20 |
| issn | 0031-9007 1079-7114 |
| language | eng |
| recordid | cdi_osti_scitechconnect_6832299 |
| source | American Physical Society Journals |
| subjects | ACCURACY ANTILEPTONS ANTIMATTER ANTIPARTICLES BASIC INTERACTIONS BOSONS BRANCHING RATIO CALCULATION METHODS CALIBRATION CALORIMETERS DECAY ELEMENTARY PARTICLES Exact sciences and technology FERMIONS HADRONS INTERACTIONS Leptonic and semileptonic decays of mesons LEPTONIC DECAY LEPTONS MASSLESS PARTICLES MATTER MEASURING INSTRUMENTS MEASURING METHODS MESONS MONTE CARLO METHOD NEUTRINOS PARTICLE DECAY Physics PHYSICS OF ELEMENTARY PARTICLES AND FIELDS PIONS POSITRONS PSEUDOSCALAR MESONS RADIATIVE DECAY Specific reactions and phenomenology The physics of elementary particles and fields WEAK INTERACTIONS WEAK PARTICLE DECAY 662350 -- Decays of Mesons-- (1992-) |
| title | Branching ratio for the rare pion decay into positron and neutrino |
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