Observation of the Annihilation Decay Mode B^{0}→K^{+}K^{-}.

@article{Aaij2017ObservationOT,
  title={Observation of the Annihilation Decay Mode B^\{0\}→K^\{+\}K^\{-\}.},
  author={R. Aaij and B. Adeva and M. Adinolfi and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and M. Alexander and S. Ali and G. Alkhazov and P. Cartelle and A. A. Alves and S. Amato and S. Amerio and Y. Amhis and L. An and L. Anderlini and G. Andreassi and M. Andreotti and J. Andrews and R. Appleby and F. Archilli and P. d'Argent and J. A. Romeu and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and M. Baalouch and I. Babuschkin and S. Bachmann and J. Back and A. Badalov and C. Baesso and S. Baker and W. Baldini and R. Barlow and C. Barschel and S. Barsuk and W. Barter and M. Baszczyk and V. Batozskaya and B. Batsukh and V. Battista and A. Bay and L. Beaucourt and J. Beddow and F. Bedeschi and I. Bediaga and L. Bel and V. Bellee and N. Belloli 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 A. Bertolin and F. Betti and M. Bettler and M. Beuzekom and I. Bezshyiko and S. Bifani and P. Billoir and T. Bird and A. Birnkraut and A. Bitadze and A. Bizzeti and T. Blake and F. Blanc and J. Blouw and S. Blusk and V. Bocci and T. Boettcher and A. Bondar and N. Bondar and W. Bonivento and A. Borgheresi and S. Borghi and M. Borisyak and M. Borsato and F. Boss{\`u} and M. Boubdir and T. Bowcock and E. Bowen and C. Bozzi and S. Braun and M. Britsch and T. Britton and J. Brodzicka and E. Buchanan and C. Burr and A. Bursche and J. Buytaert and S. Cadeddu and R. Calabrese and M. Calvi and M. C. Gomez and A. Camboni and P. Campana and D. Perez and L. Capriotti and A. Carbone and G. Carboni and R. Cardinale and A. Cardini and P. Carniti and L. Carson and K. Akiba and G. Casse and L. Cassina and L. C. Garc{\'i}a and M. Cattaneo and C. Cauet and G. Cavallero and R. Cenci and M. Charles and P. Charpentier and G. Chatzikonstantinidis and M. Chefdeville and S. Chen and S. Cheung and V. Chobanova and M. Chrzaszcz and X. C. Vidal and G. Ciezarek and P. Clarke and M. Clemencic and H. Cliff and J. Closier and V. Coco and J. Cogan and E. Cogneras and V. Cogoni and L. Cojocariu and G. Collazuol and P. Collins and A. Comerma-Montells and A. Contu and A. Cook and G. Coombs and S. Coquereau and G. Corti and M. Corvo and C. M. Sobral and B. Couturier and G. Cowan and D. Craik and A. Crocombe and M. C. Torres and S. Cunliffe and R. Currie and C. D’Ambrosio and F. Marinho and E. Dall’Occo and J. Dalseno and P. David and A. Davis and O. Francisco and K. Bruyn and S. Capua and M. Cian and J. Miranda and L. Paula and M. Serio and P. Simone and C. Dean and D. Decamp and M. Deckenhoff and L. Buono and M. Demmer and D. Derkach and O. Deschamps and F. Dettori and B. Dey and A. Canto and H. Dijkstra and F. Dordei and M. Dorigo and {\'A}. Su{\'a}rez and A. Dovbnya and K. Dreimanis and L. Dufour and G. Dujany and K. Dungs and P. Durante and R. Dzhelyadin and A. Dziurda and A. Dzyuba and N. D{\'e}l{\'e}age and S. Easo and M. Ebert and U. Egede and V. Egorychev and S. Eidelman and S. Eisenhardt and U. Eitschberger and R. Ekelhof and L. Eklund and C. Elsasser and S. Ely and S. Esen and H. Evans and T. Evans and A. Falabella and N. Farley and S. Farry and R. Fay and D. Fazzini and D. Ferguson and V. F. Albor and A. F. Prieto and F. Ferrari and F. Rodrigues and M. Ferro-Luzzi and S. Filippov and R. Fini and M. Fiore and M. Fiorini and M. Firlej and C. Fitzpatrick and T. Fiutowski and F. Fleuret and K. Fohl and M. Fontana and F. Fontanelli and D. Forshaw and R. Forty and V. F. Lima and M. Frank and C. Frei and J. Fu and E. Furfaro and C. F{\"a}rber and A. G. Torreira and D. Galli and S. Gallorini and S. Gambetta and M. Gandelman and P. Gandini and Y. Gao and L. Martin and J. Pardi{\~n}as and J. G. Tic{\'o} and L. Garrido and P. Garsed and D. Gascon and C. Gaspar and L. Gavardi and G. Gazzoni and D. Gerick and E. Gersabeck and M. Gersabeck and T. Gershon and P. Ghez and S. Gian{\`i} and V. Gibson and O. Girard and L. Giubega and K. Gizdov and V. Gligorov and D. Golubkov and A. Golutvin and {\'A}. Gomes and I. Gorelov and C. Gotti and M. G. G{\'a}ndara and R. Diaz and L. Cardoso and E. Grauges and E. Graverini and G. Graziani and A. Grecu and P. Griffith and L. Grillo and B. Cazon and O. Gr{\"u}nberg and E. Gushchin and Y. Guz and T. Gys and C. G{\"o}bel and T. Hadavizadeh and C. Hadjivasiliou and G. Haefeli and C. Haen and S. Haines and S. Hall and B. Hamilton and X. Han and S. Hansmann-Menzemer and N. Harnew and S. Harnew and J. Harrison and M. Hatch and J. He and T. Head and A. Heister and K. Hennessy and P. Henrard and L. Henry and J. A. H. Morata and E. Herwijnen and M. He{\ss} and A. Hicheur and D. Hill and P. H. Hopchev and H. Hopchev and W. Hulsbergen and T. Humair and M. Hushchyn and N. Hussain and D. Hutchcroft and M. Idzik and P. Ilten and R. Jacobsson and A. Jaeger and J. Jalocha and E. Jans and A. Jawahery and F. Jiang and M. John and D. Johnson and C. Jones and C. Joram and B. Jost and N. Jurik and S. Kandybei and W. Kanso and M. Karacson and J. Kariuki and S. Karodia and M. Kecke and M. Kelsey and I. Kenyon and M. Kenzie and T. Ketel and E. Khairullin and B. Khanji and C. Khurewathanakul and T. Kirn and S. Klaver and K. Klimaszewski and S. Koliiev and M. Kolpin and I. Komarov and R. Koopman and P. Koppenburg and A. Kosmyntseva and A. Kozachuk and M. Kozeiha and L. Kravchuk and K. Kreplin and M. Kreps and P. Krokovny and F. Kruse and W. Krzemien and W. Kucewicz and M. Kucharczyk and V. Kudryavtsev and A. Kuonen and K. Kurek and T. Kvaratskheliya and D. Lacarr{\`e}re and G. Lafferty and A. Lai and D. Lambert and G. Lanfranchi and C. Langenbruch and T. Latham and C. Lazzeroni and R. Gac and J. Leerdam and J. Lees and A. Leflat and J. Lefrancois and R. Lef{\`e}vre and F. Lemaitre and E. Cid and O. Leroy and T. Lesiak and B. Leverington and Y. Li and T. Likhomanenko and R. Lindner and C. Linn and F. Lionetto and B. Liu and X. Liu and D. Loh and I. Longstaff and J. Lopes and D. Lucchesi and M. L. Martinez and Haofei Luo and A. Lupato and E. Luppi and O. Lupton and A. Lusiani and X. Lyu and F. Machefert and F. Maciuc and O. Maev and K. Maguire and S. Malde and A. Malinin and T. Maltsev and G. Manca and G. Mancinelli and P. Manning and J. Maratas and J. Marchand and U. Marconi and C. Benito and P. Marino and J. Marks and G. Martellotti and M. Martin and M. Martinelli and D. Santos and F. M. Vidal and D. M. Tostes and L. Massacrier and A. Massafferri and R. Matev and A. Mathad and Z. M{\'a}th{\'e} and C. Matteuzzi and A. Mauri and B. Maurin and A. Mazurov and M. McCann and J. McCarthy and A. McNab and R. McNulty and B. Meadows and F. Meier and M. Meissner and D. Melnychuk and M. Merk and A. Merli and E. Michielin and D. Milanes and M. Minard and D. Mitzel and A. Mogini and J. Rodriguez and I. A. Monroy and S. Monteil and M. Morandin and P. Morawski and A. Mord{\`a} and M. Morello and J. Moron and A. Morris and R. Mountain and F. Muheim and M. Mulder and M. Mussini and D. Muller and J. M{\"u}ller and K. Mueller and V. M{\"u}ller and P. Naik and T. Nakada and R. Nandakumar and A. Nandi and I. Nasteva and M. Needham and N. Neri and S. Neubert and N. Neufeld and M. Neuner and A. Nguyen and C. Nguyen-Mau and S. Nieswand and R. Niet and N. Nikitin and T. Nikodem and A. Novoselov and D. O'Hanlon and A. Oblakowska-Mucha and V. Obraztsov and S. Ogilvy and R. Oldeman and C. Onderwater and J. Goicochea and A. Otto and P. Owen and A. Oyanguren and P. Pais and A. Palano and F. Palombo and M. Palutan and J. Panman and A. Papanestis and M. Pappagallo and L. Pappalardo and W. Parker and C. Parkes and G. Passaleva and A. Pastore and G. Patel and M. Patel and C. Patrignani and A. Pearce and A. Pellegrino and G. Penso and M. Altarelli and S. Perazzini and P. Perret and L. Pescatore and K. Petridis and A. Petrolini and A. Petrov and M. Petruzzo and E. Olloqui and B. Pietrzyk and M. Pikies and D. Pinci and A. Pistone and A. Piucci and S. Playfer and M. P. Casas{\'u}s and T. Poikela and F. Polci and A. Poluektov and I. Polyakov and E. Polycarpo and G. Pomery and A. Popov and D. Popov and B. Popovici and S. Poslavskii and C. Potterat and E. Price and J. Price and J. Prisciandaro and A. Pritchard and C. Prouve and V. Pugatch and A. Navarro and G. Punzi and W. Qian and R. Quagliani and B. Rachwal and J. Rademacker and M. Rama and M. R. Pernas and M. Rangel and I. Raniuk and G. Raven and F. Redi and S. Reichert and A. Reis and C. Alepuz and V. Renaudin and S. Ricciardi and S. Richards and M. Rihl and K. Rinnert and V. Rives-Molina and P. Robbe and A. B. Rodrigues and E. Rodrigues and J. A. R. Lopez and P. P{\'e}rez and A. Rogozhnikov and S. Roiser and A. Rollings and V. Romanovskiy and A. Vidal and J. Ronayne and M. Rotondo and M. Rudolph and T. Ruf and P. Valls and J. J. S. Silva and E. Sadykhov and N. Sagidova and B. Saitta and V. Guimaraes and C. S. Mayordomo and B. Sedes and R. Santacesaria and C. S. R{\'i}os and M. Santimaria and E. Santovetti and A. Sarti and C. Satriano and A. Satta and D. Saunders and D. Savrina and S. Schael and M. Schellenberg and M. Schiller and H. Schindler and M. Schlupp and M. Schmelling and T. Schmelzer and B. Schmidt and O. Schneider and A. Schopper and K. Schubert and M. Schubiger and M. Schune and R. Schwemmer and B. Sciascia and A. Sciubba and A. Semennikov and A. Sergi and N. Serra and J. Serrano and L. Sestini and P. Seyfert and M. Shapkin and I. Shapoval and Y. Shcheglov and T. Shears and L. Shekhtman and V. Shevchenko and A. Shires and B. Siddi and R. Coutinho and L. D. Oliveira and G. Simi and S. Simone and M. Sirendi and N. Skidmore and T. Skwarnicki and E. Smith and I. Smith and J. Smith and M. Smith and H. Snoek and M. Sokoloff and F. Soler and B. D. Paula and B. Spaan and P. Spradlin and S. Sridharan and F. Stagni and M. Stahl and S. Stahl and P. Stefko and S. Stefkova and O. Steinkamp and S. Stemmle and O. Stenyakin and S. Stevenson and S. Stoica and S. Stone and B. Storaci and S. Stracka and M. Straticiuc and U. Straumann and Liangfeng Sun and W. Sutcliffe and K. Swientek and V. Syropoulos and M. Szczekowski and T. Szumlak and S. T'jampens and A. Tayduganov and T. Tekampe and M. Teklishyn and G. Tellarini and F. Teubert and E. Thomas and J. Tilburg and M. Tilley and V. Tisserand and M. Tobin and S. Tolk and L. Tomassetti and D. Tonelli and S. Topp-Joergensen and F. Toriello and E. Tournefier and S. Tourneur and K. Trabelsi and M. Traill and M. Tran and M. Tresch and A. Trisovic and A. Tsaregorodtsev and P. Tsopelas and A. Tully and N. Tuning and A. Ukleja and Andrey Ustyuzhanin and U. Uwer and C. Vacca and V. Vagnoni and A. Valassi and S. Valat and G. Valenti and A. Vallier and R. V. Gomez and P. Regueiro and S. Vecchi and M. V. Veghel and J. Velthuis and M. Veltri and G. Veneziano and A. Venkateswaran and M. Vernet and M. Vesterinen and B. Viaud and D. Vieira and M. V. Diaz and X. Vilas{\'i}s-Cardona and V. Volkov and A. Vollhardt and B. Vőneki and A. Vorobyev and V. Vorobyev and C. Voss and J. D. Vries and C. Sierra and R. Waldi and C. Wallace and R. Wallace and J. Walsh and J. Wang and D. Ward and H. Wark and N. Watson and D. Websdale and A. Weiden and M. Whitehead and J. Wicht and G. Wilkinson and M. Wilkinson and M. Williams and T. Williams and F. Wilson and J. Wimberley and J. Wishahi and W. Wislicki and M. Witek and G. Wormser and S. Wotton and K. Wraight and S. Wright and K. Wyllie and Y. Xie and Z. Xing and Z. Xu and Z. Yang and H. Yin and J. Yu and X. Yuan and O. Yushchenko and K. Zarebski and M. Zavertyaev and L. Zhang and Y. Zhang and A. Zhelezov and Y. Zheng and A. Zhokhov and X. Zhu and V. Zhukov and S. Zucchelli},
  journal={Physical review letters},
  year={2017},
  volume={118 8},
  pages={
          081801
        }
}
A search for the B^{0}→K^{+}K^{-} decay is performed using pp-collision data collected by LHCb. The data set corresponds to integrated luminosities of 1.0 and 2.0  fb^{-1} at center-of-mass energies of 7 and 8 TeV, respectively. This decay is observed for the first time, with a significance of more than 5 standard deviations. The analysis also results in an improved measurement of the branching fraction for the B_{s}^{0}→π^{+}π^{-} decay. The measured branching fractions are B(B^{0}→K^{+}K… Expand
Revisiting Final State Interaction in Charmless $B_q\to P P$ Decays
CP Violation in $B^\pm\to \rho^0\pi^\pm$ and $B^\pm\to \sigma\pi^\pm$ Decays
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