Measurement of cp violation in the phase space of B ±→K±π+π- and B±→K±K+K- Decays

R. Aaij; B. Adeva; M. Adinolfi; C. Adrover; A. Affolder; Z. Ajaltouni; J. Albrecht; F. Alessio; M. Alexander; S. Ali; G. Alkhazov; P. Alvarez Cartelle; A. A. Alves; S. Amato; S. Amerio; Y. Amhis; L. Anderlini; J. Anderson; R. Andreassen; J. E. Andrews; R. B. Appleby; O. Aquines Gutierrez; F. Archilli; A. Artamonov; M. Artuso; E. Aslanides; G. Auriemma; M. Baalouch; S. Bachmann; J. J. Back; C. Baesso; V. Balagura; W. Baldini; R. J. Barlow; C. Barschel; S. Barsuk; W. Barter; Th Bauer; A. Bay; J. Beddow; F. Bedeschi; I. Bediaga; S. Belogurov; K. Belous; I. Belyaev; E. Ben-Haim; G. Bencivenni; S. Benson; J. Benton; A. Berezhnoy; R. Bernet; M. O. Bettler; M. Van Beuzekom; A. Bien; S. Bifani; T. Bird; A. Bizzeti; P. M. Bjørnstad; T. Blake; F. Blanc; J. Blouw; S. Blusk; V. Bocci; A. Bondar; N. Bondar; W. Bonivento; S. Borghi; A. Borgia; T. J.V. Bowcock; E. Bowen; C. Bozzi; T. Brambach; J. Van Den Brand; J. Bressieux; D. Brett; M. Britsch; T. Britton; N. H. Brook; H. Brown; I. Burducea; A. Bursche; G. Busetto; J. Buytaert; S. Cadeddu; O. Callot; M. Calvi; M. Calvo Gomez; A. Camboni; P. Campana; D. Campora Perez; A. Carbone; G. Carboni; R. Cardinale; A. Cardini; H. Carranza-Mejia; L. Carson; K. Carvalho Akiba; G. Casse

doi:10.1103/PhysRevLett.111.101801

Measurement of cp violation in the phase space of B ^±→K^±π⁺π^- and B^±→K^±K⁺K^- Decays

R. Aaij, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, Z. Ajaltouni, J. Albrecht, F. Alessio, M. Alexander, S. Ali, G. Alkhazov, P. Alvarez Cartelle, A. A. Alves, S. Amato, S. Amerio, Y. Amhis, L. Anderlini, J. Anderson, R. Andreassen, J. E. AndrewsR. B. Appleby, O. Aquines Gutierrez, F. Archilli, A. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, M. Baalouch, S. Bachmann, J. J. Back, C. Baesso, V. Balagura, W. Baldini, R. J. Barlow, C. Barschel, S. Barsuk, W. Barter, Th Bauer, A. Bay, J. Beddow, F. Bedeschi, I. Bediaga, S. Belogurov, K. Belous, I. Belyaev, E. Ben-Haim, G. Bencivenni, S. Benson, J. Benton, A. Berezhnoy, R. Bernet, M. O. Bettler, M. Van Beuzekom, A. Bien, S. Bifani, T. Bird, A. Bizzeti, P. M. Bjørnstad, T. Blake, F. Blanc, J. Blouw, S. Blusk, V. Bocci, A. Bondar, N. Bondar, W. Bonivento, S. Borghi, A. Borgia, T. J.V. Bowcock, E. Bowen, C. Bozzi, T. Brambach, J. Van Den Brand, J. Bressieux, D. Brett, M. Britsch, T. Britton, N. H. Brook, H. Brown, I. Burducea, A. Bursche, G. Busetto, J. Buytaert, S. Cadeddu, O. Callot, M. Calvi, M. Calvo Gomez, A. Camboni, P. Campana, D. Campora Perez, A. Carbone, G. Carboni, R. Cardinale, A. Cardini, H. Carranza-Mejia, L. Carson, K. Carvalho Akiba, G. Casse

Research output: Contribution to journal › Article › peer-review

133 Citations (Scopus)

Abstract

The charmless decays B ^±→K ^±π ⁺π ^- and B ^±→K ^±K ⁺K ^- are reconstructed using data, corresponding to an integrated luminosity of 1.0 fb ^-1, collected by LHCb in 2011. The inclusive charge asymmetries of these modes are measured as A _CP(B ^±→K ^±π ⁺π ^-)=0.032±0.008 (stat)±0.004 (syst)±0.007(J/ψK ^±) and A _CP(B ^±→K ^±K ⁺K ^-)=-0. 043±0.009 (stat)±0.003 (syst)±0.007(J/ψK ^±), where the third uncertainty is due to the CP asymmetry of the B ^±→J/ψK ^± reference mode. The significance of A _CP(B ^±→K ^±K ⁺K ^-) exceeds three standard deviations and is the first evidence of an inclusive CP asymmetry in charmless three-body B decays. In addition to the inclusive CP asymmetries, larger asymmetries are observed in localized regions of phase space.

Original language	English
Article number	101801
Journal	Physical Review Letters
Volume	111
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevLett.111.101801
Publication status	Published - 3 Sept 2013
Externally published	Yes

Bibliographical note

Copyright:
Copyright 2013 Elsevier B.V., All rights reserved.

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

Access to Document

10.1103/PhysRevLett.111.101801

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84884258790&origin=inward

Cite this

Aaij, R., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., Ajaltouni, Z., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A. A., Amato, S., Amerio, S., Amhis, Y., Anderlini, L., Anderson, J., Andreassen, R., ... Casse, G. (2013). Measurement of cp violation in the phase space of B ^±→K^±π⁺π^- and B^±→K^±K⁺K^- Decays. Physical Review Letters, 111(10), Article 101801. https://doi.org/10.1103/PhysRevLett.111.101801

@article{7f34d3da35a94a08ba3e7badde8f59ed,

title = "Measurement of cp violation in the phase space of B ±→K±π+π- and B±→K±K+K- Decays",

abstract = "The charmless decays B ±→K ±π +π - and B ±→K ±K +K - are reconstructed using data, corresponding to an integrated luminosity of 1.0 fb -1, collected by LHCb in 2011. The inclusive charge asymmetries of these modes are measured as A CP(B ±→K ±π +π -)=0.032±0.008 (stat)±0.004 (syst)±0.007(J/ψK ±) and A CP(B ±→K ±K +K -)=-0. 043±0.009 (stat)±0.003 (syst)±0.007(J/ψK ±), where the third uncertainty is due to the CP asymmetry of the B ±→J/ψK ± reference mode. The significance of A CP(B ±→K ±K +K -) exceeds three standard deviations and is the first evidence of an inclusive CP asymmetry in charmless three-body B decays. In addition to the inclusive CP asymmetries, larger asymmetries are observed in localized regions of phase space.",

author = "R. Aaij and B. Adeva and M. Adinolfi and C. Adrover and A. Affolder and Z. Ajaltouni and J. Albrecht and F. Alessio and M. Alexander and S. Ali and G. Alkhazov and {Alvarez Cartelle}, P. and Alves, {A. A.} and S. Amato and S. Amerio and Y. Amhis and L. Anderlini and J. Anderson and R. Andreassen and Andrews, {J. E.} and Appleby, {R. B.} and {Aquines Gutierrez}, O. and F. Archilli and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and M. Baalouch and S. Bachmann and Back, {J. J.} and C. Baesso and V. Balagura and W. Baldini and Barlow, {R. J.} and C. Barschel and S. Barsuk and W. Barter and Th Bauer and A. Bay and J. Beddow and F. Bedeschi and I. Bediaga and S. Belogurov and K. Belous and I. Belyaev and E. Ben-Haim and G. Bencivenni and S. Benson and J. Benton and A. Berezhnoy and R. Bernet and Bettler, {M. O.} and {Van Beuzekom}, M. and A. Bien and S. Bifani and T. Bird and A. Bizzeti and Bj{\o}rnstad, {P. M.} and T. Blake and F. Blanc and J. Blouw and S. Blusk and V. Bocci and A. Bondar and N. Bondar and W. Bonivento and S. Borghi and A. Borgia and Bowcock, {T. J.V.} and E. Bowen and C. Bozzi and T. Brambach and {Van Den Brand}, J. and J. Bressieux and D. Brett and M. Britsch and T. Britton and Brook, {N. H.} and H. Brown and I. Burducea and A. Bursche and G. Busetto and J. Buytaert and S. Cadeddu and O. Callot and M. Calvi and {Calvo Gomez}, M. and A. Camboni and P. Campana and {Campora Perez}, D. and A. Carbone and G. Carboni and R. Cardinale and A. Cardini and H. Carranza-Mejia and L. Carson and {Carvalho Akiba}, K. and G. Casse",

year = "2013",

month = sep,

day = "3",

doi = "10.1103/PhysRevLett.111.101801",

language = "English",

volume = "111",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "10",

}

Aaij, R, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, Anderlini, L, Anderson, J, Andreassen, R, Andrews, JE, Appleby, RB, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Bachmann, S, Back, JJ, Baesso, C, Balagura, V, Baldini, W, Barlow, RJ, Barschel, C, Barsuk, S, Barter, W, Bauer, T, Bay, A, Beddow, J, Bedeschi, F, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben-Haim, E, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bettler, MO, Van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, PM, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, TJV, Bowen, E, Bozzi, C, Brambach, T, Van Den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, NH, Brown, H, Burducea, I, Bursche, A, Busetto, G, Buytaert, J, Cadeddu, S, Callot, O, Calvi, M, Calvo Gomez, M, Camboni, A, Campana, P, Campora Perez, D, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carranza-Mejia, H, Carson, L, Carvalho Akiba, K & Casse, G 2013, 'Measurement of cp violation in the phase space of B ^±→K^±π⁺π^- and B^±→K^±K⁺K^- Decays', Physical Review Letters, vol. 111, no. 10, 101801. https://doi.org/10.1103/PhysRevLett.111.101801

TY - JOUR

T1 - Measurement of cp violation in the phase space of B ±→K±π+π- and B±→K±K+K- Decays

AU - Aaij, R.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Adrover, C.

AU - Affolder, A.

AU - Ajaltouni, Z.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Ali, S.

AU - Alkhazov, G.

AU - Alvarez Cartelle, P.

AU - Alves, A. A.

AU - Amato, S.

AU - Amerio, S.

AU - Amhis, Y.

AU - Anderlini, L.

AU - Anderson, J.

AU - Andreassen, R.

AU - Andrews, J. E.

AU - Appleby, R. B.

AU - Aquines Gutierrez, O.

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Auriemma, G.

AU - Baalouch, M.

AU - Bachmann, S.

AU - Back, J. J.

AU - Baesso, C.

AU - Balagura, V.

AU - Baldini, W.

AU - Barlow, R. J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Bauer, Th

AU - Bay, A.

AU - Beddow, J.

AU - Bedeschi, F.

AU - Bediaga, I.

AU - Belogurov, S.

AU - Belous, K.

AU - Belyaev, I.

AU - Ben-Haim, E.

AU - Bencivenni, G.

AU - Benson, S.

AU - Benton, J.

AU - Berezhnoy, A.

AU - Bernet, R.

AU - Bettler, M. O.

AU - Van Beuzekom, M.

AU - Bien, A.

AU - Bifani, S.

AU - Bird, T.

AU - Bizzeti, A.

AU - Bjørnstad, P. M.

AU - Blake, T.

AU - Blanc, F.

AU - Blouw, J.

AU - Blusk, S.

AU - Bocci, V.

AU - Bondar, A.

AU - Bondar, N.

AU - Bonivento, W.

AU - Borghi, S.

AU - Borgia, A.

AU - Bowcock, T. J.V.

AU - Bowen, E.

AU - Bozzi, C.

AU - Brambach, T.

AU - Van Den Brand, J.

AU - Bressieux, J.

AU - Brett, D.

AU - Britsch, M.

AU - Britton, T.

AU - Brook, N. H.

AU - Brown, H.

AU - Burducea, I.

AU - Bursche, A.

AU - Busetto, G.

AU - Buytaert, J.

AU - Cadeddu, S.

AU - Callot, O.

AU - Calvi, M.

AU - Calvo Gomez, M.

AU - Camboni, A.

AU - Campana, P.

AU - Campora Perez, D.

AU - Carbone, A.

AU - Carboni, G.

AU - Cardinale, R.

AU - Cardini, A.

AU - Carranza-Mejia, H.

AU - Carson, L.

AU - Carvalho Akiba, K.

AU - Casse, G.

PY - 2013/9/3

Y1 - 2013/9/3

N2 - The charmless decays B ±→K ±π +π - and B ±→K ±K +K - are reconstructed using data, corresponding to an integrated luminosity of 1.0 fb -1, collected by LHCb in 2011. The inclusive charge asymmetries of these modes are measured as A CP(B ±→K ±π +π -)=0.032±0.008 (stat)±0.004 (syst)±0.007(J/ψK ±) and A CP(B ±→K ±K +K -)=-0. 043±0.009 (stat)±0.003 (syst)±0.007(J/ψK ±), where the third uncertainty is due to the CP asymmetry of the B ±→J/ψK ± reference mode. The significance of A CP(B ±→K ±K +K -) exceeds three standard deviations and is the first evidence of an inclusive CP asymmetry in charmless three-body B decays. In addition to the inclusive CP asymmetries, larger asymmetries are observed in localized regions of phase space.

AB - The charmless decays B ±→K ±π +π - and B ±→K ±K +K - are reconstructed using data, corresponding to an integrated luminosity of 1.0 fb -1, collected by LHCb in 2011. The inclusive charge asymmetries of these modes are measured as A CP(B ±→K ±π +π -)=0.032±0.008 (stat)±0.004 (syst)±0.007(J/ψK ±) and A CP(B ±→K ±K +K -)=-0. 043±0.009 (stat)±0.003 (syst)±0.007(J/ψK ±), where the third uncertainty is due to the CP asymmetry of the B ±→J/ψK ± reference mode. The significance of A CP(B ±→K ±K +K -) exceeds three standard deviations and is the first evidence of an inclusive CP asymmetry in charmless three-body B decays. In addition to the inclusive CP asymmetries, larger asymmetries are observed in localized regions of phase space.

UR - http://www.scopus.com/inward/record.url?scp=84884258790&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84884258790&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/9306ab11-3d80-3d47-bd35-50175b8ddc70/

U2 - 10.1103/PhysRevLett.111.101801

DO - 10.1103/PhysRevLett.111.101801

M3 - Article

SN - 0031-9007

VL - 111

JO - Physical Review Letters

JF - Physical Review Letters

IS - 10

M1 - 101801

ER -