# Observation of CP Violation in Charm Decays.

@article{Aaij2019ObservationOC, title={Observation of CP Violation in Charm Decays.}, author={R. Aaij and C. Abell{\'a}n Beteta and B. Adeva and M. Adinolfi and C. Aidala and Z. Ajaltouni and S. Akar and P. Albicocco and J. Albrecht and F. Alessio and M. Alexander and A. Alfonso Albero and G. Alkhazov and P. Alvarez Cartelle and A. Alves and S. Amato and Y. Amhis and L. An and L. Anderlini and G. Andreassi and M. Andreotti and J. E. Andrews and F. Archilli and P. Dargent and J. Arnau Romeu and A. Artamonov and M. Artuso and K. Arzymatov and E. Aslanides and M. Atzeni and B. Audurier and S. Bachmann and J. Back and S. Baker and V. Balagura and W. Baldini and A. Baranov and R. Barlow and S. Barsuk and W. Barter and M. Bartolini and F. Baryshnikov and V. Batozskaya and B. Batsukh and A. Battig and V. Battista and A. Bay and F. Bedeschi and I. Bediaga and A. Beiter and L. J. Bel and S. Belin and N. Beliy and V. Bellee and N. Belloli and K. Belous and I. Belyaev and E. Ben-Haim and G. Bencivenni and S. Benson and S. Beranek and A. Berezhnoy and R. Bernet and D. Berninghoff and E. Bertholet and A. Bertolin and C. Betancourt and F. Betti and M. Bettler and M. van Beuzekom and I. Bezshyiko and S. Bhasin and J. Bhom and M. S. Bieker and S. Bifani and P. Billoir and A. Birnkraut and A. Bizzeti and M. Bj{\o}rn and M. P. Blago and T. Blake and F. Blanc and S. Blusk and D. Bobulska and V. Bocci and O. Boente Garcia and T. Boettcher and A. Bondar and N. Bondar and S. Borghi and M. Borisyak and M. Borsato and M. Boubdir and T. Bowcock and C. Bozzi and S. Braun and M. Brodski and J. Brodzicka and A. Brossa Gonzalo and D. Brundu and E. Buchanan and A. Buonaura and C. Burr and A. Bursche and J. Buytaert and W. Byczynski and S. Cadeddu and H. Cai and R. Calabrese and S. Cal{\`i} and R. Calladine and M. Calvi and M. Calvo Gomez and A. Camboni and P. Campana and D. C. C{\'a}mpora P{\'e}rez and L. Capriotti and A. Carbone and G. Carboni and R. Cardinale and A. Cardini and P. Carniti and K. Carvalho Akiba and G. Casse and M. Cattaneo and G. Cavallero and R. Cenci and M. Chapman and M. Charles and P. Charpentier and G. Chatzikonstantinidis and M. Chefdeville and V. Chekalina and C. Chen and S. Chen and S. Chitic and V. Chobanova and M. Chrząszcz and A. Chubykin and P. Ciambrone and X. Cid Vidal and G. Ciezarek and F. Cindolo and P. Clarke and M. Clemencic and H. V. Cliff and J. Closier and V. Coco and J. Coelho and J. Cogan and E. Cogneras and L. Cojocariu and P. Collins and T. Colombo and A. Comerma-Montells and A. Contu and G. Coombs and S. Coquereau and G. Corti and C. M. Costa Sobral and B. Couturier and G. Cowan and D. Craik and A. Crocombe and M. Cruz Torres and R. Currie and C. D'Ambrosio and C. L. da Silva and E. Dall’Occo and J. Dalseno and A. Danilina and A. Davis and O. De Aguiar Francisco and K. De Bruyn and S. de Capua and M. De Cian and J. de Miranda and L. De Paula and M. De Serio and P. de Simone and C. Dean and W. De-an and D. Decamp and L. Del Buono and B. Delaney and H. Dembinski and M. Demmer and A. Dendek and D. Derkach and O. Deschamps and F. Desse and F. Dettori and B. Dey and A. Di Canto and P. Di Nezza and S. Didenko and H. Dijkstra and F. Dordei and M. Dorigo and A. Dosil Su{\'a}rez and L. Douglas and A. Dovbnya and K. Dreimanis and L. Dufour and G. Dujany and P. Durante and J. M. Durham and D. Dutta and R. Dzhelyadin and M. Dziewiecki and A. Dziurda and A. Dzyuba and S. Easo and U. Egede and V. Egorychev and S. Eidelman and S. Eisenhardt and U. Eitschberger and R. Ekelhof and L. Eklund and S. Ely and A. Ene and S. Escher and S. Esen and T. Evans and A. Falabella and N. Farley and S. Farry and D. Fazzini and P. Fernandez Declara and A. Fernandez Prieto and F. Ferrari and L. Ferreira Lopes and F. Ferreira Rodrigues and S. Ferreres Sole and M. Ferro-Luzzi and S. Filippov and R. A. Fini and M. Fiorini and M. Firlej and C. Fitzpatrick and T. Fiutowski and F. Fleuret and M. Fontana and F. Fontanelli and R. Forty and V. Franco Lima and M. Frank and C. Frei and J. Fu and W. Funk and C. Faerber and M. F{\'e}o and E. Gabriel and A. Gallas Torreira and D. Galli and S. Gallorini and S. Gambetta and Y. Gan and M. Gandelman and P. Gandini and Y. Gao and L. G. Garcia Martin and B. Garcia Plana and J. Garc{\'i}a Pardi{\~n}as and J. Garra Tico and L. Garrido and D. Gascon and C. Gaspar and G. Gazzoni and D. Gerick and E. Gersabeck and M. Gersabeck and T. Gershon and D. Gerstel and P. Ghez and V. Gibson and O. Girard and P. Gironella Gironell 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 E. Govorkova and J. Grabowski and R. Graciani Diaz and L. A. Granado Cardoso and E. Grauges and E. Graverini and G. Graziani and A. Grecu and R. Greim and P. Griffith and L. Grillo and L. Gruber and B. R. Gruberg Cazon and C. Gu and X. Guo and E. Gushchin and A. Guth and Y. Guz and T. Gys and C. G{\"o}bel and T. Hadavizadeh and C. 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Kim and T. Kirn and V. S. Kirsebom and S. Klaver and K. Klimaszewski and S. Koliiev and M. Kolpin and R. Kope{\vc}n{\'a} and P. Koppenburg and I. Kostiuk and S. Kotriakhova and M. Kozeiha and L. Kravchuk and M. Kreps and F. Kress and S. Kretzschmar and P. Krokovny and W. Krupa and W. Krzemien and W. Kucewicz and M. Kucharczyk and V. Kudryavtsev and G. J. Kunde and A. Kuonen and T. Kvaratskheliya and D. Lacarr{\`e}re and G. Lafferty and A. Lai and D. Lancierini and G. Lanfranchi and C. Langenbruch and T. Latham and C. Lazzeroni and R. Le Gac and A. Leflat and R. Lef{\`e}vre and F. Lema{\^i}tre and O. Leroy and T. Lesiak and B. Leverington and H. Li and P. Li and X. Li and Y. Li and Z. Li and X. Liang and T. Likhomanenko and R. Lindner and P. Ling and F. Lionetto and V. Lisovskyi and G. Liu and X. Liu and D. Loh and A. Loi and I. Longstaff and J. Lopes and G. Loustau and G. Lovell and D. Lucchesi and M. Lucio Mart{\'i}nez and Y. Luo and A. Lupato and E. Luppi and O. Lupton and A. Lusiani and X. Lyu and R. Ma and F. Machefert and F. Maciuc and V. Macko and P. Ma{\'c}kowiak and S. Maddrell-Mander and O. Maev and K. Maguire and D. Maisuzenko and M. Majewski and S. Malde and B. Małecki and A. Malinin and T. Maltsev and H. Malygina and G. Manca and G. Mancinelli and D. Marangotto and J. Maratas and J. Marchand and U. Marconi and C. Mar{\'i}n Benito and M. Marinangeli and P. Marino and J. Marks and P. J. Marshall and G. Martellotti and M. Martinelli and D. Mart{\'i}nez Santos and F. Martinez Vidal and A. Massafferri and M. Materok and R. Matev and A. Mathad and Z. M{\'a}th{\'e} and V. Matiunin and C. Matteuzzi and K. R. Mattioli and A. Mauri and E. Maurice and B. Maurin and M. Mccann and A. Mcnab and R. Mcnulty and J. Mead and B. Meadows and C. M{\'e}aux and N. Meinert and D. Melnychuk and M. Merk and A. Merli and E. Michielin and D. A. Milanes and E. Millard and M.-N. Minard and L. Minzoni and D. S. Mitzel}, journal={Physical review letters}, year={2019}, volume={122 21}, pages={ 211803 } }

A search for charge-parity (CP) violation in D^{0}→K^{-}K^{+} and D^{0}→π^{-}π^{+} decays is reported, using pp collision data corresponding to an integrated luminosity of 5.9 fb^{-1} collected at a center-of-mass energy of 13 TeV with the LHCb detector. The flavor of the charm meson is inferred from the charge of the pion in D^{*}(2010)^{+}→D^{0}π^{+} decays or from the charge of the muon in B[over ¯]→D^{0}μ^{-}ν[over ¯]_{μ}X decays. The difference between the CP asymmetries in D^{0}→K^{-}K… CONTINUE READING

#### Paper Mentions

71 Citations

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Updated measurement of decay-time-dependent CP asymmetries in $D^0 \to K^+K^-$ and $D^0 \to \pi^+\pi^-$ decays.

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Precise Measurements of Branching Fractions for $D_s^+$ Meson Decays to Two Pseudoscalar Mesons.

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