Observation of Several Sources of CP Violation in B^{+}→π^{+}π^{+}π^{-} Decays
Observations are reported of different sources of CP violation from an amplitude analysis of B^{+}→π^{+}π^{+}π^{-} decays, based on a data sample corresponding to an integrated luminosity of 3 fb^{-1} of pp collisions recorded with the LHCb detector. A large CP asymmetry is observed in the decay am...
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| Veröffentlicht in: | Physical review letters 2020-01, Vol.124 (3), p.031801-031801 |
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| creator | Aaij, R Abellán Beteta, C Adeva, B Adinolfi, M Aidala, C A Ajaltouni, Z Akar, S Albicocco, P Albrecht, J Alessio, F Alexander, M Alfonso Albero, A Alkhazov, G Alvarez Cartelle, P Alves, A A Amato, S Amhis, Y An, L Anderlini, L Andreassi, G Andreotti, M Andrews, J E Archilli, F Arnau Romeu, J Artamonov, A Artuso, M Arzymatov, K Aslanides, E Atzeni, M Audurier, B Bachmann, S Back, J J Baker, S Balagura, V Baldini, W Baranov, A Barlow, R J Barsuk, S Barter, W Bartolini, M Baryshnikov, F Batozskaya, V Batsukh, B Battig, A Battista, V Bay, A Bedeschi, F Bediaga, I Beiter, A Bel, L J Belavin, V Belin, S Beliy, N Bellee, V Belous, K Belyaev, I Bencivenni, G Ben-Haim, E Benson, S Beranek, S Berezhnoy, A Bernet, R Berninghoff, D Bertholet, E Bertolin, A Betancourt, C Betti, F Bettler, M O Bezshyiko, Ia Bhasin, S Bhom, J Bieker, M S Bifani, S Billoir, P Birnkraut, A Bizzeti, A Bjørn, M Blago, M P Blake, T Blanc, F Blusk, S Bobulska, D Bocci, V Boente Garcia, O Boettcher, T Boldyrev, A Bondar, A Bondar, N Borghi, S Borisyak, M Borsato, M Boubdir, M Bowcock, T J V Bozzi, C Braun, S Brea Rodriguez, A Brodski, M Brodzicka, J Brossa Gonzalo, A Brundu, D |
| description | Observations are reported of different sources of CP violation from an amplitude analysis of B^{+}→π^{+}π^{+}π^{-} decays, based on a data sample corresponding to an integrated luminosity of 3 fb^{-1} of pp collisions recorded with the LHCb detector. A large CP asymmetry is observed in the decay amplitude involving the tensor f_{2}(1270) resonance, and in addition significant CP violation is found in the π^{+}π^{-}S wave at low invariant mass. The presence of CP violation related to interference between the π^{+}π^{-}S wave and the P wave B^{+}→ρ(770)^{0}π^{+} amplitude is also established; this causes large local asymmetries but cancels when integrated over the phase space of the decay. The results provide both qualitative and quantitative new insights into CP -violation effects in hadronic B decays. |
| doi_str_mv | 10.1103/PhysRevLett.124.031801 |
| format | Article |
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A large CP asymmetry is observed in the decay amplitude involving the tensor f_{2}(1270) resonance, and in addition significant CP violation is found in the π^{+}π^{-}S wave at low invariant mass. The presence of CP violation related to interference between the π^{+}π^{-}S wave and the P wave B^{+}→ρ(770)^{0}π^{+} amplitude is also established; this causes large local asymmetries but cancels when integrated over the phase space of the decay. The results provide both qualitative and quantitative new insights into CP -violation effects in hadronic B decays.</description><identifier>ISSN: 0031-9007</identifier><identifier>EISSN: 1079-7114</identifier><identifier>DOI: 10.1103/PhysRevLett.124.031801</identifier><identifier>PMID: 32031835</identifier><language>eng</language><publisher>United States: American Physical Society</publisher><subject>Amplitudes ; Asymmetry ; CP violation ; Decay ; High Energy Physics - Experiment ; Luminosity ; Matter & antimatter ; P waves ; Physics ; S waves ; Tensors</subject><ispartof>Physical review letters, 2020-01, Vol.124 (3), p.031801-031801</ispartof><rights>Copyright American Physical Society Jan 24, 2020</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0001-7194-7566 ; 0000-0001-7176-2692 ; 0000-0002-3411-989X ; 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J</creatorcontrib><creatorcontrib>Brossa Gonzalo, A</creatorcontrib><creatorcontrib>Brundu, D</creatorcontrib><creatorcontrib>LHCb Collaboration</creatorcontrib><title>Observation of Several Sources of CP Violation in B^{+}→π^{+}π^{+}π^{-} Decays</title><title>Physical review letters</title><addtitle>Phys Rev Lett</addtitle><description>Observations are reported of different sources of CP violation from an amplitude analysis of B^{+}→π^{+}π^{+}π^{-} decays, based on a data sample corresponding to an integrated luminosity of 3 fb^{-1} of pp collisions recorded with the LHCb detector. A large CP asymmetry is observed in the decay amplitude involving the tensor f_{2}(1270) resonance, and in addition significant CP violation is found in the π^{+}π^{-}S wave at low invariant mass. The presence of CP violation related to interference between the π^{+}π^{-}S wave and the P wave B^{+}→ρ(770)^{0}π^{+} amplitude is also established; this causes large local asymmetries but cancels when integrated over the phase space of the decay. The results provide both qualitative and quantitative new insights into CP -violation effects in hadronic B decays.</description><subject>Amplitudes</subject><subject>Asymmetry</subject><subject>CP violation</subject><subject>Decay</subject><subject>High Energy Physics - Experiment</subject><subject>Luminosity</subject><subject>Matter & antimatter</subject><subject>P waves</subject><subject>Physics</subject><subject>S 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Abellán Beteta, C ; Adeva, B ; Adinolfi, M ; Aidala, C A ; Ajaltouni, Z ; Akar, S ; Albicocco, P ; Albrecht, J ; Alessio, F ; Alexander, M ; Alfonso Albero, A ; Alkhazov, G ; Alvarez Cartelle, P ; Alves, A A ; Amato, S ; Amhis, Y ; An, L ; Anderlini, L ; Andreassi, G ; Andreotti, M ; Andrews, J E ; Archilli, F ; Arnau Romeu, J ; Artamonov, A ; Artuso, M ; Arzymatov, K ; Aslanides, E ; Atzeni, M ; Audurier, B ; Bachmann, S ; Back, J J ; Baker, S ; Balagura, V ; Baldini, W ; Baranov, A ; Barlow, R J ; Barsuk, S ; Barter, W ; Bartolini, M ; Baryshnikov, F ; Batozskaya, V ; Batsukh, B ; Battig, A ; Battista, V ; Bay, A ; Bedeschi, F ; Bediaga, I ; Beiter, A ; Bel, L J ; Belavin, V ; Belin, S ; Beliy, N ; Bellee, V ; Belous, K ; Belyaev, I ; Bencivenni, G ; Ben-Haim, E ; Benson, S ; Beranek, S ; Berezhnoy, A ; Bernet, R ; Berninghoff, D ; Bertholet, E ; Bertolin, A ; Betancourt, C ; Betti, F ; Bettler, M O ; Bezshyiko, Ia ; Bhasin, S ; Bhom, J ; Bieker, M S ; Bifani, S ; Billoir, P ; Birnkraut, A ; Bizzeti, A ; Bjørn, M ; Blago, M P ; Blake, T ; Blanc, F ; Blusk, S ; Bobulska, D ; Bocci, V ; Boente Garcia, O ; Boettcher, T ; Boldyrev, A ; Bondar, A ; Bondar, N ; Borghi, S ; Borisyak, M ; Borsato, M ; Boubdir, M ; Bowcock, T J V ; Bozzi, C ; Braun, S ; Brea Rodriguez, A ; Brodski, M ; Brodzicka, J ; Brossa Gonzalo, A ; Brundu, D</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c309t-5b15193158431424430b65b2943691b421bafbb29ad6a4ae6cd4e38ed0f47ba3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Amplitudes</topic><topic>Asymmetry</topic><topic>CP violation</topic><topic>Decay</topic><topic>High Energy Physics - Experiment</topic><topic>Luminosity</topic><topic>Matter & antimatter</topic><topic>P waves</topic><topic>Physics</topic><topic>S waves</topic><topic>Tensors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Aaij, R</creatorcontrib><creatorcontrib>Abellán Beteta, C</creatorcontrib><creatorcontrib>Adeva, B</creatorcontrib><creatorcontrib>Adinolfi, M</creatorcontrib><creatorcontrib>Aidala, C A</creatorcontrib><creatorcontrib>Ajaltouni, Z</creatorcontrib><creatorcontrib>Akar, S</creatorcontrib><creatorcontrib>Albicocco, P</creatorcontrib><creatorcontrib>Albrecht, J</creatorcontrib><creatorcontrib>Alessio, F</creatorcontrib><creatorcontrib>Alexander, M</creatorcontrib><creatorcontrib>Alfonso Albero, A</creatorcontrib><creatorcontrib>Alkhazov, G</creatorcontrib><creatorcontrib>Alvarez Cartelle, P</creatorcontrib><creatorcontrib>Alves, A A</creatorcontrib><creatorcontrib>Amato, S</creatorcontrib><creatorcontrib>Amhis, Y</creatorcontrib><creatorcontrib>An, L</creatorcontrib><creatorcontrib>Anderlini, L</creatorcontrib><creatorcontrib>Andreassi, 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(HAL) (Open Access)</collection><jtitle>Physical review letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Aaij, R</au><au>Abellán Beteta, C</au><au>Adeva, B</au><au>Adinolfi, M</au><au>Aidala, C A</au><au>Ajaltouni, Z</au><au>Akar, S</au><au>Albicocco, P</au><au>Albrecht, J</au><au>Alessio, F</au><au>Alexander, M</au><au>Alfonso Albero, A</au><au>Alkhazov, G</au><au>Alvarez Cartelle, P</au><au>Alves, A A</au><au>Amato, S</au><au>Amhis, Y</au><au>An, L</au><au>Anderlini, L</au><au>Andreassi, G</au><au>Andreotti, M</au><au>Andrews, J E</au><au>Archilli, F</au><au>Arnau Romeu, J</au><au>Artamonov, A</au><au>Artuso, M</au><au>Arzymatov, K</au><au>Aslanides, E</au><au>Atzeni, M</au><au>Audurier, B</au><au>Bachmann, S</au><au>Back, J J</au><au>Baker, S</au><au>Balagura, V</au><au>Baldini, W</au><au>Baranov, A</au><au>Barlow, R J</au><au>Barsuk, S</au><au>Barter, W</au><au>Bartolini, M</au><au>Baryshnikov, F</au><au>Batozskaya, V</au><au>Batsukh, B</au><au>Battig, A</au><au>Battista, V</au><au>Bay, A</au><au>Bedeschi, F</au><au>Bediaga, I</au><au>Beiter, A</au><au>Bel, L J</au><au>Belavin, V</au><au>Belin, S</au><au>Beliy, N</au><au>Bellee, V</au><au>Belous, K</au><au>Belyaev, I</au><au>Bencivenni, G</au><au>Ben-Haim, E</au><au>Benson, S</au><au>Beranek, S</au><au>Berezhnoy, A</au><au>Bernet, R</au><au>Berninghoff, D</au><au>Bertholet, E</au><au>Bertolin, A</au><au>Betancourt, C</au><au>Betti, F</au><au>Bettler, M O</au><au>Bezshyiko, Ia</au><au>Bhasin, S</au><au>Bhom, J</au><au>Bieker, M S</au><au>Bifani, S</au><au>Billoir, P</au><au>Birnkraut, A</au><au>Bizzeti, A</au><au>Bjørn, M</au><au>Blago, M P</au><au>Blake, T</au><au>Blanc, F</au><au>Blusk, S</au><au>Bobulska, D</au><au>Bocci, V</au><au>Boente Garcia, O</au><au>Boettcher, T</au><au>Boldyrev, A</au><au>Bondar, A</au><au>Bondar, N</au><au>Borghi, S</au><au>Borisyak, M</au><au>Borsato, M</au><au>Boubdir, M</au><au>Bowcock, T J V</au><au>Bozzi, C</au><au>Braun, S</au><au>Brea Rodriguez, A</au><au>Brodski, M</au><au>Brodzicka, J</au><au>Brossa Gonzalo, A</au><au>Brundu, D</au><aucorp>LHCb Collaboration</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Observation of Several Sources of CP Violation in B^{+}→π^{+}π^{+}π^{-} Decays</atitle><jtitle>Physical review letters</jtitle><addtitle>Phys Rev Lett</addtitle><date>2020-01-24</date><risdate>2020</risdate><volume>124</volume><issue>3</issue><spage>031801</spage><epage>031801</epage><pages>031801-031801</pages><issn>0031-9007</issn><eissn>1079-7114</eissn><abstract>Observations are reported of different sources of CP violation from an amplitude analysis of B^{+}→π^{+}π^{+}π^{-} decays, based on a data sample corresponding to an integrated luminosity of 3 fb^{-1} of pp collisions recorded with the LHCb detector. A large CP asymmetry is observed in the decay amplitude involving the tensor f_{2}(1270) resonance, and in addition significant CP violation is found in the π^{+}π^{-}S wave at low invariant mass. The presence of CP violation related to interference between the π^{+}π^{-}S wave and the P wave B^{+}→ρ(770)^{0}π^{+} amplitude is also established; this causes large local asymmetries but cancels when integrated over the phase space of the decay. The results provide both qualitative and quantitative new insights into CP -violation effects in hadronic B decays.</abstract><cop>United States</cop><pub>American Physical Society</pub><pmid>32031835</pmid><doi>10.1103/PhysRevLett.124.031801</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0001-7194-7566</orcidid><orcidid>https://orcid.org/0000-0001-7176-2692</orcidid><orcidid>https://orcid.org/0000-0002-3411-989X</orcidid><orcidid>https://orcid.org/0000-0002-5732-4343</orcidid><orcidid>https://orcid.org/0000-0002-3362-4229</orcidid><orcidid>https://orcid.org/0000-0001-9905-8031</orcidid><orcidid>https://orcid.org/0000-0002-1345-8163</orcidid><orcidid>https://orcid.org/0000-0003-1015-9560</orcidid><orcidid>https://orcid.org/0000-0002-0656-9033</orcidid><orcidid>https://orcid.org/0000-0002-4111-0797</orcidid><orcidid>https://orcid.org/0000-0001-9762-5821</orcidid><orcidid>https://orcid.org/0000-0001-9341-8083</orcidid><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0031-9007 |
| ispartof | Physical review letters, 2020-01, Vol.124 (3), p.031801-031801 |
| issn | 0031-9007 1079-7114 |
| language | eng |
| recordid | cdi_hal_primary_oai_HAL_hal_02317331v1 |
| source | American Physical Society Journals; EZB-FREE-00999 freely available EZB journals |
| subjects | Amplitudes Asymmetry CP violation Decay High Energy Physics - Experiment Luminosity Matter & antimatter P waves Physics S waves Tensors |
| title | Observation of Several Sources of CP Violation in B^{+}→π^{+}π^{+}π^{-} Decays |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-22T06%3A00%3A40IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_hal_p&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Observation%20of%20Several%20Sources%20of%20CP%20Violation%20in%20B%5E%7B+%7D%E2%86%92%CF%80%5E%7B+%7D%CF%80%5E%7B+%7D%CF%80%5E%7B-%7D%20Decays&rft.jtitle=Physical%20review%20letters&rft.au=Aaij,%20R&rft.aucorp=LHCb%20Collaboration&rft.date=2020-01-24&rft.volume=124&rft.issue=3&rft.spage=031801&rft.epage=031801&rft.pages=031801-031801&rft.issn=0031-9007&rft.eissn=1079-7114&rft_id=info:doi/10.1103/PhysRevLett.124.031801&rft_dat=%3Cproquest_hal_p%3E2348876540%3C/proquest_hal_p%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2348876540&rft_id=info:pmid/32031835&rfr_iscdi=true |