Measurement of the CP violating phase φs in B-s0→J/ψf0(980)

The LHCb Collaboration

doi:10.1016/j.physletb.2012.01.017

Measurement of the CP violating phase φ_s in B-_s⁰→J/ψf0(980)

The LHCb Collaboration

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

50 Citations (Scopus)

Abstract

Measurement of mixing-induced CP violation in B-s0 decays is of prime importance in probing new physics. So far only the channel B-_s⁰→J/ψφ has been used. Here we report on a measurement using an LHCb data sample of 0.41 fb^-1, in the CP odd eigenstate J/ψf₀(980), where f₀(980)→π⁺π^-. A time-dependent fit of the data with the B-s0 lifetime and the difference in widths of the heavy and light eigenstates constrained to the values obtained from B-s0→J/ψφ yields a value of the CP violating phase of -0.44±0.44±0.02 rad, consistent with the Standard Model expectation.

Original language	English
Pages (from-to)	497-505
Number of pages	9
Journal	Physics Letters B
Volume	707
Issue number	5
DOIs	https://doi.org/10.1016/j.physletb.2012.01.017
Publication status	Published - 7 Feb 2012
Externally published	Yes

Keywords

CP violation
Hadronic B decays
LHC

Access to Document

10.1016/j.physletb.2012.01.017

Cite this

@article{be8c71b88b704e3fbe6d72e5cb877109,

title = "Measurement of the CP violating phase φs in B-s0→J/ψf0(980)",

abstract = "Measurement of mixing-induced CP violation in B-s0 decays is of prime importance in probing new physics. So far only the channel B-s0→J/ψφ has been used. Here we report on a measurement using an LHCb data sample of 0.41 fb-1, in the CP odd eigenstate J/ψf0(980), where f0(980)→π+π-. A time-dependent fit of the data with the B-s0 lifetime and the difference in widths of the heavy and light eigenstates constrained to the values obtained from B-s0→J/ψφ yields a value of the CP violating phase of -0.44±0.44±0.02 rad, consistent with the Standard Model expectation.",

keywords = "CP violation, Hadronic B decays, LHC",

author = "R. Aaij and \{Abellan Beteta\}, C. 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 G. Alkhazov and \{Alvarez Cartelle\}, P. and Alves, \{A. A.\} and S. Amato and Y. Amhis and J. Anderson and Appleby, \{R. B.\} and \{Aquines Gutierrez\}, O. and F. Archilli and L. Arrabito and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and S. Bachmann and Back, \{J. J.\} and Bailey, \{D. S.\} and V. Balagura and W. Baldini and Barlow, \{R. J.\} and C. Barschel and S. Barsuk and W. Barter and A. Bates and C. Bauer and T. Bauer and A. Bay and I. Bediaga and S. Belogurov and K. Belous and I. Belyaev and E. Ben-Haim and M. Benayoun and G. Bencivenni and S. Benson and J. Benton 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 C. Blanks and J. Blouw and S. Blusk and A. Bobrov and V. Bocci and A. Bondar and N. Bondar and W. Bonivento and S. Borghi and A. Borgia and Bowcock, \{T. J.V.\} 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 A. B{\"u}chler-Germann and I. Burducea and A. Bursche and J. Buytaert and S. Cadeddu and O. Callot and M. Calvi and \{Calvo Gomez\}, M. and A. Camboni and P. Campana and A. Carbone and G. Carboni and R. Cardinale and A. Cardini and L. Carson and \{Carvalho Akiba\}, K. and G. Casse and M. Cattaneo and C. Cauet and M. Charles and P. Charpentier and N. Chiapolini and K. Ciba and \{Cid Vidal\}, X. and G. Ciezarek and Clarke, \{P. E.L.\} and M. Clemencic and Cliff, \{H. V.\} and J. Closier and C. Coca and V. Coco and J. Cogan and P. Collins and A. Comerma-Montells and F. Constantin and A. Contu and A. Cook and M. Coombes and G. Corti and Cowan, \{G. A.\} and R. Currie and C. D'Ambrosio and P. David and David, \{P. N.Y.\} and \{De Bonis\}, I. and \{De Capua\}, S. and \{De Cian\}, M. and \{De Lorenzi\}, F. and \{De Miranda\}, \{J. M.\} and \{De Paula\}, L. and \{De Simone\}, P. and D. Decamp and M. Deckenhoff and H. Degaudenzi and \{Del Buono\}, L. and C. Deplano and D. Derkach and O. Deschamps and F. Dettori and J. Dickens and H. Dijkstra and \{Diniz Batista\}, P. and \{Domingo Bonal\}, F. and S. Donleavy and F. Dordei and \{Dosil Su{\'a}rez\}, A. and D. Dossett and A. Dovbnya and F. Dupertuis and R. Dzhelyadin and A. Dziurda and S. Easo and U. Egede and V. Egorychev and S. Eidelman and \{van Eijk\}, D. and F. Eisele and S. Eisenhardt and R. Ekelhof and L. Eklund and C. Elsasser and D. Elsby and \{Esperante Pereira\}, D. and L. Est{\`e}ve and A. Falabella and E. Fanchini and C. F{\"a}rber and G. Fardell and C. Farinelli and S. Farry and V. Fave and \{Fernandez Albor\}, V. and M. Ferro-Luzzi and S. Filippov and C. Fitzpatrick and M. Fontana and F. Fontanelli and R. Forty and M. Frank and C. Frei and M. Frosini and S. Furcas and \{Gallas Torreira\}, A. and D. Galli and M. Gandelman and P. Gandini and Y. Gao and Garnier, \{J. C.\} and J. Garofoli and \{Garra Tico\}, J. and L. Garrido and D. Gascon and C. Gaspar and N. Gauvin and M. Gersabeck and T. Gershon and P. Ghez and V. Gibson and Gligorov, \{V. V.\} and C. G{\"o}bel and D. Golubkov and A. Golutvin and A. Gomes and H. Gordon and \{Grabalosa G{\'a}ndara\}, M. and \{Graciani Diaz\}, R. and \{Granado Cardoso\}, \{L. A.\} and E. Graug{\'e}s and G. Graziani and A. Grecu and E. Greening and S. Gregson and B. Gui and E. Gushchin and Y. Guz and T. Gys and G. Haefeli and C. Haen and Haines, \{S. C.\} and T. Hampson and S. Hansmann-Menzemer and R. Harji and N. Harnew and J. Harrison and Harrison, \{P. F.\} and T. Hartmann and J. He and V. Heijne and K. Hennessy and P. Henrard and \{Hernando Morata\}, \{J. A.\} and \{van Herwijnen\}, E. and E. Hicks and K. Holubyev and P. Hopchev and W. Hulsbergen and P. Hunt and T. Huse and Huston, \{R. S.\} and D. Hutchcroft and D. Hynds and V. Iakovenko and P. Ilten and J. Imong and R. Jacobsson and A. Jaeger and \{Jahjah Hussein\}, M. and E. Jans and F. Jansen and P. Jaton and B. Jean-Marie and F. Jing and M. John and D. Johnson and \{The LHCb Collaboration\}",

year = "2012",

month = feb,

day = "7",

doi = "10.1016/j.physletb.2012.01.017",

language = "English",

volume = "707",

pages = "497--505",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier BV",

number = "5",

}

TY - JOUR

T1 - Measurement of the CP violating phase φs in B-s0→J/ψf0(980)

AU - Aaij, R.

AU - Abellan Beteta, C.

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 - Alkhazov, G.

AU - Alvarez Cartelle, P.

AU - Alves, A. A.

AU - Amato, S.

AU - Amhis, Y.

AU - Anderson, J.

AU - Appleby, R. B.

AU - Aquines Gutierrez, O.

AU - Archilli, F.

AU - Arrabito, L.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Auriemma, G.

AU - Bachmann, S.

AU - Back, J. J.

AU - Bailey, D. S.

AU - Balagura, V.

AU - Baldini, W.

AU - Barlow, R. J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Bates, A.

AU - Bauer, C.

AU - Bauer, T.

AU - Bay, A.

AU - Bediaga, I.

AU - Belogurov, S.

AU - Belous, K.

AU - Belyaev, I.

AU - Ben-Haim, E.

AU - Benayoun, M.

AU - Bencivenni, G.

AU - Benson, S.

AU - Benton, J.

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 - Blanks, C.

AU - Blouw, J.

AU - Blusk, S.

AU - Bobrov, A.

AU - Bocci, V.

AU - Bondar, A.

AU - Bondar, N.

AU - Bonivento, W.

AU - Borghi, S.

AU - Borgia, A.

AU - Bowcock, T. J.V.

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 - Büchler-Germann, A.

AU - Burducea, I.

AU - Bursche, A.

AU - Buytaert, J.

AU - Cadeddu, S.

AU - Callot, O.

AU - Calvi, M.

AU - Calvo Gomez, M.

AU - Camboni, A.

AU - Campana, P.

AU - Carbone, A.

AU - Carboni, G.

AU - Cardinale, R.

AU - Cardini, A.

AU - Carson, L.

AU - Carvalho Akiba, K.

AU - Casse, G.

AU - Cattaneo, M.

AU - Cauet, C.

AU - Charles, M.

AU - Charpentier, P.

AU - Chiapolini, N.

AU - Ciba, K.

AU - Cid Vidal, X.

AU - Ciezarek, G.

AU - Clarke, P. E.L.

AU - Clemencic, M.

AU - Cliff, H. V.

AU - Closier, J.

AU - Coca, C.

AU - Coco, V.

AU - Cogan, J.

AU - Collins, P.

AU - Comerma-Montells, A.

AU - Constantin, F.

AU - Contu, A.

AU - Cook, A.

AU - Coombes, M.

AU - Corti, G.

AU - Cowan, G. A.

AU - Currie, R.

AU - D'Ambrosio, C.

AU - David, P.

AU - David, P. N.Y.

AU - De Bonis, I.

AU - De Capua, S.

AU - De Cian, M.

AU - De Lorenzi, F.

AU - De Miranda, J. M.

AU - De Paula, L.

AU - De Simone, P.

AU - Decamp, D.

AU - Deckenhoff, M.

AU - Degaudenzi, H.

AU - Del Buono, L.

AU - Deplano, C.

AU - Derkach, D.

AU - Deschamps, O.

AU - Dettori, F.

AU - Dickens, J.

AU - Dijkstra, H.

AU - Diniz Batista, P.

AU - Domingo Bonal, F.

AU - Donleavy, S.

AU - Dordei, F.

AU - Dosil Suárez, A.

AU - Dossett, D.

AU - Dovbnya, A.

AU - Dupertuis, F.

AU - Dzhelyadin, R.

AU - Dziurda, A.

AU - Easo, S.

AU - Egede, U.

AU - Egorychev, V.

AU - Eidelman, S.

AU - van Eijk, D.

AU - Eisele, F.

AU - Eisenhardt, S.

AU - Ekelhof, R.

AU - Eklund, L.

AU - Elsasser, C.

AU - Elsby, D.

AU - Esperante Pereira, D.

AU - Estève, L.

AU - Falabella, A.

AU - Fanchini, E.

AU - Färber, C.

AU - Fardell, G.

AU - Farinelli, C.

AU - Farry, S.

AU - Fave, V.

AU - Fernandez Albor, V.

AU - Ferro-Luzzi, M.

AU - Filippov, S.

AU - Fitzpatrick, C.

AU - Fontana, M.

AU - Fontanelli, F.

AU - Forty, R.

AU - Frank, M.

AU - Frei, C.

AU - Frosini, M.

AU - Furcas, S.

AU - Gallas Torreira, A.

AU - Galli, D.

AU - Gandelman, M.

AU - Gandini, P.

AU - Gao, Y.

AU - Garnier, J. C.

AU - Garofoli, J.

AU - Garra Tico, J.

AU - Garrido, L.

AU - Gascon, D.

AU - Gaspar, C.

AU - Gauvin, N.

AU - Gersabeck, M.

AU - Gershon, T.

AU - Ghez, P.

AU - Gibson, V.

AU - Gligorov, V. V.

AU - Göbel, C.

AU - Golubkov, D.

AU - Golutvin, A.

AU - Gomes, A.

AU - Gordon, H.

AU - Grabalosa Gándara, M.

AU - Graciani Diaz, R.

AU - Granado Cardoso, L. A.

AU - Graugés, E.

AU - Graziani, G.

AU - Grecu, A.

AU - Greening, E.

AU - Gregson, S.

AU - Gui, B.

AU - Gushchin, E.

AU - Guz, Y.

AU - Gys, T.

AU - Haefeli, G.

AU - Haen, C.

AU - Haines, S. C.

AU - Hampson, T.

AU - Hansmann-Menzemer, S.

AU - Harji, R.

AU - Harnew, N.

AU - Harrison, J.

AU - Harrison, P. F.

AU - Hartmann, T.

AU - He, J.

AU - Heijne, V.

AU - Hennessy, K.

AU - Henrard, P.

AU - Hernando Morata, J. A.

AU - van Herwijnen, E.

AU - Hicks, E.

AU - Holubyev, K.

AU - Hopchev, P.

AU - Hulsbergen, W.

AU - Hunt, P.

AU - Huse, T.

AU - Huston, R. S.

AU - Hutchcroft, D.

AU - Hynds, D.

AU - Iakovenko, V.

AU - Ilten, P.

AU - Imong, J.

AU - Jacobsson, R.

AU - Jaeger, A.

AU - Jahjah Hussein, M.

AU - Jans, E.

AU - Jansen, F.

AU - Jaton, P.

AU - Jean-Marie, B.

AU - Jing, F.

AU - John, M.

AU - Johnson, D.

AU - The LHCb Collaboration

PY - 2012/2/7

Y1 - 2012/2/7

N2 - Measurement of mixing-induced CP violation in B-s0 decays is of prime importance in probing new physics. So far only the channel B-s0→J/ψφ has been used. Here we report on a measurement using an LHCb data sample of 0.41 fb-1, in the CP odd eigenstate J/ψf0(980), where f0(980)→π+π-. A time-dependent fit of the data with the B-s0 lifetime and the difference in widths of the heavy and light eigenstates constrained to the values obtained from B-s0→J/ψφ yields a value of the CP violating phase of -0.44±0.44±0.02 rad, consistent with the Standard Model expectation.

AB - Measurement of mixing-induced CP violation in B-s0 decays is of prime importance in probing new physics. So far only the channel B-s0→J/ψφ has been used. Here we report on a measurement using an LHCb data sample of 0.41 fb-1, in the CP odd eigenstate J/ψf0(980), where f0(980)→π+π-. A time-dependent fit of the data with the B-s0 lifetime and the difference in widths of the heavy and light eigenstates constrained to the values obtained from B-s0→J/ψφ yields a value of the CP violating phase of -0.44±0.44±0.02 rad, consistent with the Standard Model expectation.

KW - CP violation

KW - Hadronic B decays

KW - LHC

UR - https://www.scopus.com/pages/publications/84937644683

U2 - 10.1016/j.physletb.2012.01.017

DO - 10.1016/j.physletb.2012.01.017

M3 - Article

AN - SCOPUS:84937644683

SN - 0370-2693

VL - 707

SP - 497

EP - 505

JO - Physics Letters B

JF - Physics Letters B

IS - 5