Amplitude analysis of the B + → π + π + π − decay
The results of an amplitude analysis of the charmless three-body decay B+→π+π+π−, in which CP-violation effects are taken into account, are reported. The analysis is based on a data sample corresponding to an integrated luminosity of 3 fb−1 of pp collisions recorded with the LHCb detector. The most...
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| Veröffentlicht in: | Physical review. D 2020-01, Vol.101 (1), p.1, Article 012006 |
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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 | The results of an amplitude analysis of the charmless three-body decay B+→π+π+π−, in which CP-violation effects are taken into account, are reported. The analysis is based on a data sample corresponding to an integrated luminosity of 3 fb−1 of pp collisions recorded with the LHCb detector. The most challenging aspect of the analysis is the description of the behavior of the π+π− S-wave contribution, which is achieved by using three complementary approaches based on the isobar model, the K-matrix formalism, and a quasi-model-independent procedure. Additional resonant contributions for all three methods are described using a common isobar model, and include the ρ(770)0, ω(782) and ρ(1450)0 resonances in the π+π− P-wave, the f2(1270) resonance in the π+π− D-wave, and the ρ3(1690)0 resonance in the π+π− F-wave. Significant CP-violation effects are observed in both S- and D-waves, as well as in the interference between the S- and P-waves. The results from all three approaches agree and provide new insight into the dynamics and the origin of CP-violation effects in B+→π+π+π− decays. |
| doi_str_mv | 10.1103/PhysRevD.101.012006 |
| format | Article |
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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. 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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. ; LHCb Collaboration</creatorcontrib><description>The results of an amplitude analysis of the charmless three-body decay B+→π+π+π−, in which CP-violation effects are taken into account, are reported. The analysis is based on a data sample corresponding to an integrated luminosity of 3 fb−1 of pp collisions recorded with the LHCb detector. The most challenging aspect of the analysis is the description of the behavior of the π+π− S-wave contribution, which is achieved by using three complementary approaches based on the isobar model, the K-matrix formalism, and a quasi-model-independent procedure. Additional resonant contributions for all three methods are described using a common isobar model, and include the ρ(770)0, ω(782) and ρ(1450)0 resonances in the π+π− P-wave, the f2(1270) resonance in the π+π− D-wave, and the ρ3(1690)0 resonance in the π+π− F-wave. Significant CP-violation effects are observed in both S- and D-waves, as well as in the interference between the S- and P-waves. The results from all three approaches agree and provide new insight into the dynamics and the origin of CP-violation effects in B+→π+π+π− decays.</description><identifier>ISSN: 2470-0010</identifier><identifier>EISSN: 2470-0029</identifier><identifier>DOI: 10.1103/PhysRevD.101.012006</identifier><language>eng</language><publisher>College Park: American Physical Society</publisher><subject>Amplitudes ; CP violation ; Decay ; Luminosity ; P waves ; Resonance ; S waves</subject><ispartof>Physical review. 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V.</creatorcontrib><creatorcontrib>Bozzi, C.</creatorcontrib><creatorcontrib>Braun, S.</creatorcontrib><creatorcontrib>Brea Rodriguez, A.</creatorcontrib><creatorcontrib>Brodski, M.</creatorcontrib><creatorcontrib>Brodzicka, J.</creatorcontrib><creatorcontrib>Brossa Gonzalo, A.</creatorcontrib><creatorcontrib>Brundu, D.</creatorcontrib><creatorcontrib>LHCb Collaboration</creatorcontrib><title>Amplitude analysis of the B + → π + π + π − decay</title><title>Physical review. D</title><description>The results of an amplitude analysis of the charmless three-body decay B+→π+π+π−, in which CP-violation effects are taken into account, are reported. The analysis is based on a data sample corresponding to an integrated luminosity of 3 fb−1 of pp collisions recorded with the LHCb detector. The most challenging aspect of the analysis is the description of the behavior of the π+π− S-wave contribution, which is achieved by using three complementary approaches based on the isobar model, the K-matrix formalism, and a quasi-model-independent procedure. Additional resonant contributions for all three methods are described using a common isobar model, and include the ρ(770)0, ω(782) and ρ(1450)0 resonances in the π+π− P-wave, the f2(1270) resonance in the π+π− D-wave, and the ρ3(1690)0 resonance in the π+π− F-wave. Significant CP-violation effects are observed in both S- and D-waves, as well as in the interference between the S- and P-waves. The results from all three approaches agree and provide new insight into the dynamics and the origin of CP-violation effects in B+→π+π+π− decays.</description><subject>Amplitudes</subject><subject>CP violation</subject><subject>Decay</subject><subject>Luminosity</subject><subject>P waves</subject><subject>Resonance</subject><subject>S waves</subject><issn>2470-0010</issn><issn>2470-0029</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNo9kM9KAzEQxoMoWGqfwEvQo2ydyTa72WOtf6GgiJ5DmkzplrZbN6mwN0_iuS_mO_RJjKz18s03w48P5mPsFKGPCOnl06zxz_R-3UfAPqAAyA5YRwxySABEcfjvEY5Zz_s5RJtBkSN2mBou14sybBxxszKLxpeeV1MeZsSv-AXffW7590c0e9l9bbkja5oTdjQ1C0-9v9llr7c3L6P7ZPx49zAajhObDiAkVhljlFSKVJaneVyVMmIijHWFk05apayCbOIICRxlpohakLOESuYg0i47a3MrH0rtbRnIzmy1WpENGmUhFAwidN5C67p625APel5t6viP1yKVGINyKSOVtpStK-9rmup1XS5N3WgE_Vul3lcZD6jbKtMfLqhoIA</recordid><startdate>20200121</startdate><enddate>20200121</enddate><creator>Aaij, R.</creator><creator>Abellán Beteta, C.</creator><creator>Adeva, B.</creator><creator>Adinolfi, M.</creator><creator>Aidala, C. 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V.</creator><creator>Bozzi, C.</creator><creator>Braun, S.</creator><creator>Brea Rodriguez, A.</creator><creator>Brodski, M.</creator><creator>Brodzicka, J.</creator><creator>Brossa Gonzalo, A.</creator><creator>Brundu, D.</creator><general>American Physical Society</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>OTOTI</scope></search><sort><creationdate>20200121</creationdate><title>Amplitude analysis of the B + → π + π + π − decay</title><author>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.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c340t-c8aaa8588e86737c8a88a2b2acd9d5d5c88c806bde1e0de6a90de9edce1857023</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Amplitudes</topic><topic>CP violation</topic><topic>Decay</topic><topic>Luminosity</topic><topic>P waves</topic><topic>Resonance</topic><topic>S waves</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, G.</creatorcontrib><creatorcontrib>Andreotti, M.</creatorcontrib><creatorcontrib>Andrews, J. E.</creatorcontrib><creatorcontrib>Archilli, F.</creatorcontrib><creatorcontrib>Arnau Romeu, J.</creatorcontrib><creatorcontrib>Artamonov, A.</creatorcontrib><creatorcontrib>Artuso, M.</creatorcontrib><creatorcontrib>Arzymatov, K.</creatorcontrib><creatorcontrib>Aslanides, E.</creatorcontrib><creatorcontrib>Atzeni, M.</creatorcontrib><creatorcontrib>Audurier, B.</creatorcontrib><creatorcontrib>Bachmann, S.</creatorcontrib><creatorcontrib>Back, J. J.</creatorcontrib><creatorcontrib>Baker, S.</creatorcontrib><creatorcontrib>Balagura, V.</creatorcontrib><creatorcontrib>Baldini, W.</creatorcontrib><creatorcontrib>Baranov, A.</creatorcontrib><creatorcontrib>Barlow, R. J.</creatorcontrib><creatorcontrib>Barsuk, S.</creatorcontrib><creatorcontrib>Barter, W.</creatorcontrib><creatorcontrib>Bartolini, M.</creatorcontrib><creatorcontrib>Baryshnikov, F.</creatorcontrib><creatorcontrib>Batozskaya, V.</creatorcontrib><creatorcontrib>Batsukh, B.</creatorcontrib><creatorcontrib>Battig, A.</creatorcontrib><creatorcontrib>Battista, V.</creatorcontrib><creatorcontrib>Bay, A.</creatorcontrib><creatorcontrib>Bedeschi, F.</creatorcontrib><creatorcontrib>Bediaga, I.</creatorcontrib><creatorcontrib>Beiter, A.</creatorcontrib><creatorcontrib>Bel, L. J.</creatorcontrib><creatorcontrib>Belavin, V.</creatorcontrib><creatorcontrib>Belin, S.</creatorcontrib><creatorcontrib>Beliy, N.</creatorcontrib><creatorcontrib>Bellee, V.</creatorcontrib><creatorcontrib>Belous, K.</creatorcontrib><creatorcontrib>Belyaev, I.</creatorcontrib><creatorcontrib>Bencivenni, G.</creatorcontrib><creatorcontrib>Ben-Haim, E.</creatorcontrib><creatorcontrib>Benson, S.</creatorcontrib><creatorcontrib>Beranek, S.</creatorcontrib><creatorcontrib>Berezhnoy, A.</creatorcontrib><creatorcontrib>Bernet, R.</creatorcontrib><creatorcontrib>Berninghoff, D.</creatorcontrib><creatorcontrib>Bertholet, E.</creatorcontrib><creatorcontrib>Bertolin, A.</creatorcontrib><creatorcontrib>Betancourt, C.</creatorcontrib><creatorcontrib>Betti, F.</creatorcontrib><creatorcontrib>Bettler, M. O.</creatorcontrib><creatorcontrib>Bezshyiko, Ia</creatorcontrib><creatorcontrib>Bhasin, S.</creatorcontrib><creatorcontrib>Bhom, J.</creatorcontrib><creatorcontrib>Bieker, M. S.</creatorcontrib><creatorcontrib>Bifani, S.</creatorcontrib><creatorcontrib>Billoir, P.</creatorcontrib><creatorcontrib>Birnkraut, A.</creatorcontrib><creatorcontrib>Bizzeti, A.</creatorcontrib><creatorcontrib>Bjørn, M.</creatorcontrib><creatorcontrib>Blago, M. P.</creatorcontrib><creatorcontrib>Blake, T.</creatorcontrib><creatorcontrib>Blanc, F.</creatorcontrib><creatorcontrib>Blusk, S.</creatorcontrib><creatorcontrib>Bobulska, D.</creatorcontrib><creatorcontrib>Bocci, V.</creatorcontrib><creatorcontrib>Boente Garcia, O.</creatorcontrib><creatorcontrib>Boettcher, T.</creatorcontrib><creatorcontrib>Boldyrev, A.</creatorcontrib><creatorcontrib>Bondar, A.</creatorcontrib><creatorcontrib>Bondar, N.</creatorcontrib><creatorcontrib>Borghi, S.</creatorcontrib><creatorcontrib>Borisyak, M.</creatorcontrib><creatorcontrib>Borsato, M.</creatorcontrib><creatorcontrib>Boubdir, M.</creatorcontrib><creatorcontrib>Bowcock, T. J. V.</creatorcontrib><creatorcontrib>Bozzi, C.</creatorcontrib><creatorcontrib>Braun, S.</creatorcontrib><creatorcontrib>Brea Rodriguez, A.</creatorcontrib><creatorcontrib>Brodski, M.</creatorcontrib><creatorcontrib>Brodzicka, J.</creatorcontrib><creatorcontrib>Brossa Gonzalo, A.</creatorcontrib><creatorcontrib>Brundu, D.</creatorcontrib><creatorcontrib>LHCb Collaboration</creatorcontrib><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV</collection><jtitle>Physical review. D</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>Amplitude analysis of the B + → π + π + π − decay</atitle><jtitle>Physical review. D</jtitle><date>2020-01-21</date><risdate>2020</risdate><volume>101</volume><issue>1</issue><spage>1</spage><pages>1-</pages><artnum>012006</artnum><issn>2470-0010</issn><eissn>2470-0029</eissn><abstract>The results of an amplitude analysis of the charmless three-body decay B+→π+π+π−, in which CP-violation effects are taken into account, are reported. The analysis is based on a data sample corresponding to an integrated luminosity of 3 fb−1 of pp collisions recorded with the LHCb detector. The most challenging aspect of the analysis is the description of the behavior of the π+π− S-wave contribution, which is achieved by using three complementary approaches based on the isobar model, the K-matrix formalism, and a quasi-model-independent procedure. Additional resonant contributions for all three methods are described using a common isobar model, and include the ρ(770)0, ω(782) and ρ(1450)0 resonances in the π+π− P-wave, the f2(1270) resonance in the π+π− D-wave, and the ρ3(1690)0 resonance in the π+π− F-wave. Significant CP-violation effects are observed in both S- and D-waves, as well as in the interference between the S- and P-waves. The results from all three approaches agree and provide new insight into the dynamics and the origin of CP-violation effects in B+→π+π+π− decays.</abstract><cop>College Park</cop><pub>American Physical Society</pub><doi>10.1103/PhysRevD.101.012006</doi><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 2470-0010 |
| ispartof | Physical review. D, 2020-01, Vol.101 (1), p.1, Article 012006 |
| issn | 2470-0010 2470-0029 |
| language | eng |
| recordid | cdi_osti_scitechconnect_1592804 |
| source | American Physical Society Journals |
| subjects | Amplitudes CP violation Decay Luminosity P waves Resonance S waves |
| title | Amplitude analysis of the B + → π + π + π − decay |
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