{"title":"用ATLAS探测器在s=7TeV的pp碰撞中测量W→τν衰变中的τ偏振","authors":"Zofia Czyczula, ATLAS collaboration","doi":"10.1016/j.nuclphysbps.2014.09.044","DOIUrl":null,"url":null,"abstract":"<div><p>In this proceedings, the first measurement of <em>τ</em> polarization at a hadron collider is presented. The method for extracting the <em>τ</em> polarization is independent of the mode of <em>τ</em> production and can be applied to the characterization of new phenomena at the Large Hadron Collider. The method has been applied to <span><math><mi>W</mi><mo>→</mo><mi>τ</mi><mi>ν</mi></math></span> decays and the measured value of <span><math><msub><mrow><mi>P</mi></mrow><mrow><mi>τ</mi></mrow></msub><mo>=</mo><mo>−</mo><mn>1.06</mn><mo>±</mo><mn>0.04</mn><mspace></mspace><msubsup><mrow><mtext><mtext>(</mtext><mi>stat</mi><mtext>)</mtext></mtext></mrow><mrow><mo>−</mo><mn>0.07</mn></mrow><mrow><mo>+</mo><mn>0.05</mn></mrow></msubsup><mspace></mspace><mtext><mtext>(</mtext><mi>syst</mi><mtext>)</mtext></mtext></math></span> is in agreement with the Standard Model prediction.</p></div>","PeriodicalId":93343,"journal":{"name":"Nuclear physics. B, Proceedings, supplements","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.nuclphysbps.2014.09.044","citationCount":"5","resultStr":"{\"title\":\"Measurement of τ Polarization in W→τν Decays with the ATLAS Detector in pp Collisions at s=7TeV\",\"authors\":\"Zofia Czyczula, ATLAS collaboration\",\"doi\":\"10.1016/j.nuclphysbps.2014.09.044\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>In this proceedings, the first measurement of <em>τ</em> polarization at a hadron collider is presented. The method for extracting the <em>τ</em> polarization is independent of the mode of <em>τ</em> production and can be applied to the characterization of new phenomena at the Large Hadron Collider. The method has been applied to <span><math><mi>W</mi><mo>→</mo><mi>τ</mi><mi>ν</mi></math></span> decays and the measured value of <span><math><msub><mrow><mi>P</mi></mrow><mrow><mi>τ</mi></mrow></msub><mo>=</mo><mo>−</mo><mn>1.06</mn><mo>±</mo><mn>0.04</mn><mspace></mspace><msubsup><mrow><mtext><mtext>(</mtext><mi>stat</mi><mtext>)</mtext></mtext></mrow><mrow><mo>−</mo><mn>0.07</mn></mrow><mrow><mo>+</mo><mn>0.05</mn></mrow></msubsup><mspace></mspace><mtext><mtext>(</mtext><mi>syst</mi><mtext>)</mtext></mtext></math></span> is in agreement with the Standard Model prediction.</p></div>\",\"PeriodicalId\":93343,\"journal\":{\"name\":\"Nuclear physics. B, Proceedings, supplements\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2014-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/j.nuclphysbps.2014.09.044\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nuclear physics. B, Proceedings, supplements\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0920563214001753\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear physics. B, Proceedings, supplements","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0920563214001753","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Measurement of τ Polarization in W→τν Decays with the ATLAS Detector in pp Collisions at s=7TeV
In this proceedings, the first measurement of τ polarization at a hadron collider is presented. The method for extracting the τ polarization is independent of the mode of τ production and can be applied to the characterization of new phenomena at the Large Hadron Collider. The method has been applied to decays and the measured value of is in agreement with the Standard Model prediction.
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