Aaij R, Abdelmotteleb A S W, Abellan Beteta C, Abudinén F, Ackernley T, Adefisoye A A, Adeva B, Adinolfi M, Adlarson P, Agapopoulou C, Aidala C A, Ajaltouni Z, Akar S, Akiba K, Albicocco P, Albrecht J, Alessio F, Alexander M, Aliouche Z, Alvarez Cartelle P, Amalric R, Amato S, Amey J L, Amhis Y, An L, Anderlini L, Andersson M, Andreianov A, Andreola P, Andreotti M, Andreou D, Anelli A, Ao D, Archilli F, Argenton M, Arguedas Cuendis S, Artamonov A, Artuso M, Aslanides E, Ataíde Da Silva R, Atzeni M, Audurier B, Bacher D, Bachiller Perea I, Bachmann S, Bachmayer M, Back J J, Baladron Rodriguez P, Balagura V, Balboni A, Baldini W, Balzani L, Bao H, Baptista de Souza Leite J, Barbero Pretel C, Barbetti M, Barbosa I R, Barlow R J, Barnyakov M, Barsuk S, Barter W, Bartolini M, Bartz J, Basels J M, Bashir S, Bassi G, Batsukh B, Battista P B, Bay A, Beck A, Becker M, Bedeschi F, Bediaga I B, Behling N A, Belin S, Belous K, Belov I, Belyaev I, Benane G, Bencivenni G, Ben-Haim E, Berezhnoy A, Bernet R, Bernet Andres S, Bertolin A, Betancourt C, Betti F, Bex J, Bezshyiko Ia, Bhom J, Bieker M S, Biesuz N V, Billoir P, Biolchini A, Birch M, Bishop F C R, Bitadze A, Bizzeti A, Blake T, Blanc F, Blank J E, Blusk S, Bocharnikov V, Boelhauve J A, Boente Garcia O, Boettcher T, Bohare A, Boldyrev A, Bolognani C S, Bolzonella R, Bonacci R B, Bondar N, Bordelius A, Borgato F, Borghi S, Borsato M, Borsuk J T, Bouchiba S A, Bovill M, Bowcock T J V, Boyer A, Bozzi C, Brea Rodriguez A, Breer N, Brodzicka J, Brossa Gonzalo A, Brown J, Brundu D, Buchanan E, Buonaura A, Buonincontri L, Burke A T, Burr C, Butter J S, Buytaert J, Byczynski W, Cadeddu S, Cai H, Caillet A C, Calabrese R, Calderon Ramirez S, Calefice L, Cali S, Calvi M, Calvo Gomez M, Camargo Magalhaes P, Cambon Bouzas J I, Campana P, Campora Perez D H, Campoverde Quezada A F, Capelli S, Capriotti L, Caravaca-Mora R, Carbone A, Carcedo Salgado L, Cardinale R, Cardini A, Carniti P, Carus L, Casais Vidal A, Caspary R, Casse G, Cattaneo M, Cavallero G, Cavallini V, Celani S, Cervenkov D, Cesare S, Chadwick A J, Chahrour I, Charles M, Charpentier Ph, Chatzianagnostou E, Chefdeville M, Chen C, Chen S, Chen Z, Chernov A, Chernyshenko S, Chiotopoulos X, Chobanova V, Cholak S, Chrzaszcz M, Chubykin A, Chulikov V, Ciambrone P, Cid Vidal X, Ciezarek G, Cifra P, Clarke P E L, Clemencic M, Cliff H V, Closier J, Cocha Toapaxi C, Coco V, Cogan J, Cogneras E, Cojocariu L, Collaviti S, Collins P, Colombo T, Colonna M, Comerma-Montells A, Congedo L, Contu A, Cooke N, Corredoira I, Correia A, Corti G, Cottee Meldrum J J, Couturier B, Craik D C, Cruz Torres M, Curras Rivera E, Currie R, Da Silva C L, Dadabaev S, Dai L, Dai X, Dall'Occo E, Dalseno J, D'Ambrosio C, Daniel J, Danilina A, d'Argent P, Darze G, Davidson A, Davies J E, Davis A, De Aguiar Francisco O, De Angelis C, De Benedetti F, de Boer J, De Bruyn K, De Capua S, De Cian M, De Freitas Carneiro Da Graca U, De Lucia E, De Miranda J M, De Paula L, De Serio M, De Simone P, De Vellis F, de Vries J A, Debernardis F, Decamp D, Dedu V, Dekkers S, Del Buono L, Delaney B, Dembinski H-P, Deng J, Denysenko V, Deschamps O, Dettori F, Dey B, Di Nezza P, Diachkov I, Didenko S, Ding S, Dittmann L, Dobishuk V, Docheva A D, Dong C, Donohoe A M, Dordei F, Dos Reis A C, Dowling A D, Duan W, Duda P, Dudek M W, Dufour L, Duk V, Durante P, Duras M M, Durham J M, Durmus O D, Dziurda A, Dzyuba A, Easo S, Eckstein E, Egede U, Egorychev A, Egorychev V, Eisenhardt S, Ejopu E, Eklund L, Elashri M, Ellbracht J, Ely S, Ene A, Eschle J, Esen S, Evans T, Fabiano F, Falcao L N, Fan Y, Fang B, Fantini L, Faria M, Farmer K, Fazzini D, Felkowski L, Feng M, Feo M, Fernandez Casani A, Fernandez Gomez M, Fernez A D, Ferrari F, Ferreira Rodrigues F, Ferrillo M, Ferro-Luzzi M, Filippov S, Fini R A, Fiorini M, Firlej M, Fischer K L, Fitzgerald D S, Fitzpatrick C, Fiutowski T, Fleuret F, Fontana M, Foreman L F, Forty R, Foulds-Holt D, Franco Lima V, Franco Sevilla M, Frank M, Franzoso E, Frau G, Frei C, Friday D A, Fu J, Führing Q, Fujii Y, Fulghesu T, Gabriel E, Galati G, Galati M D, Gallas Torreira A, Galli D, Gambetta S, Gandelman M, Gandini P, Ganie B, Gao H, Gao R, Gao T Q, Gao Y, Gao Y, Gao Y, Garcia Martin L M, Garcia Moreno P, García Pardiñas J, Gardner P, Garg K G, Garrido L, Gaspar C, Geertsema R E, Gerken L L, Gersabeck E, Gersabeck M, Gershon T, Ghizzo S, Ghorbanimoghaddam Z, Giambastiani L, Giasemis F I, Gibson V, Giemza H K, Gilman A L, Giovannetti M, Gioventù A, Girardey L, Gironella Gironell P, Giugliano C, Giza M A, Gkougkousis E L, Glaser F C, Gligorov V V, Göbel C, Golobardes E, Golubkov D, Golutvin A, Gomez Fernandez S, Gomulka W, Goncalves Abrantes F, Goncerz M, Gong G, Gooding J A, Gorelov I V, Gotti C, Grabowski J P, Granado Cardoso L A, Graugés E, Graverini E, Grazette L, Graziani G, Grecu A T, Greeven L M, Grieser N A, Grillo L, Gromov S, Gu C, Guarise M, Guerry L, Guittiere M, Guliaeva V, Günther P A, Guseinov A-K, Gushchin E, Guz Y, Gys T, Habermann K, Hadavizadeh T, Hadjivasiliou C, Haefeli G, Haen C, Hajheidari M, Hallett G, Halvorsen M M, Hamilton P M, Hammerich J, Han Q, Han X, Hansmann-Menzemer S, Hao L, Harnew N, Harris T H, Hartmann M, Hashmi S, He J, Hemmer F, Henderson C, Henderson R D L, Hennequin A M, Hennessy K, Henry L, Herd J, Herrero Gascon P, Heuel J, Hicheur A, Hijano Mendizabal G, Horswill J, Hou R, Hou Y, Howarth N, Hu J, Hu W, Hu X, Huang W, Hulsbergen W, Hunter R J, Hushchyn M, Hutchcroft D, Idzik M, Ilin D, Ilten P, Inglessi A, Iniukhin A, Ishteev A, Ivshin K, Jacobsson R, Jage H, Jaimes Elles S J, Jakobsen S, Jans E, Jashal B K, Jawahery A, Jevtic V, Jiang E, Jiang X, Jiang Y, Jiang Y J, John M, John Rubesh Rajan A, Johnson D, Jones C R, Jones T P, Joshi S, Jost B, Juan Castella J, Jurik N, Juszczak I, Kaminaris D, Kandybei S, Kane M, Kang Y, Kar C, Karacson M, Karpenkov D, Kauniskangas A, Kautz J W, Kazanecki M K, Keizer F, Kenzie M, Ketel T, Khanji B, Kharisova A, Kholodenko S, Khreich G, Kirn T, Kirsebom V S, Kitouni O, Klaver S, Kleijne N, Klimaszewski K, Kmiec M R, Koliiev S, Kolk L, Konoplyannikov A, Kopciewicz P, Koppenburg P, Korolev M, Kostiuk I, Kot O, Kotriakhova S, Kozachuk A, Kravchenko P, Kravchuk L, Kreps M, Krokovny P, Krupa W, Krzemien W, Kshyvanskyi O, Kubis S, Kucharczyk M, Kudryavtsev V, Kulikova E, Kupsc A, Kutsenko B K, Lacarrere D, Laguarta Gonzalez P, Lai A, Lampis A, Lancierini D, Landesa Gomez C, Lane J J, Lane R, Lanfranchi G, Langenbruch C, Langer J, Lantwin O, Latham T, Lazzari F, Lazzeroni C, Le Gac R, Lee H, Lefèvre R, Leflat A, Legotin S, Lehuraux M, Lemos Cid E, Leroy O, Lesiak T, Lesser E D, Leverington B, Li A, Li C, Li H, Li K, Li L, Li M, Li P, Li P-R, Li Q, Li S, Li T, Li T, Li Y, Li Y, Lian Z, Liang X, Libralon S, Lin C, Lin T, Lindner R, Linton H, Lisovskyi V, Litvinov R, Liu F L, Liu G, Liu K, Liu S, Liu W, Liu Y, Liu Y, Liu Y L, Lobo Salvia A, Loi A, Long T, Lopes J H, Lopez Huertas A, López Soliño S, Lu Q, Lucarelli C, Lucchesi D, Lucio Martinez M, Lukashenko V, Luo Y, Lupato A, Luppi E, Lynch K, Lyu X-R, Ma G M, Maccolini S, Machefert F, Maciuc F, Mack B, Mackay I, Mackey L M, Madhan Mohan L R, Madurai M J, Maevskiy A, Magdalinski D, Maisuzenko D, Majewski M W, Malczewski J J, Malde S, Malentacca L, Malinin A, Maltsev T, Manca G, Mancinelli G, Mancuso C, Manera Escalero R, Manganella F M, Manuzzi D, Marangotto D, Marchand J F, Marchevski R, Marconi U, Mariani E, Mariani S, Marin Benito C, Marks J, Marshall A M, Martel L, Martelli G, Martellotti G, Martinazzoli L, Martinelli M, Martinez Gomez D, Martinez Santos D, Martinez Vidal F, Martorell I Granollers A, Massafferri A, Matev R, Mathad A, Matiunin V, Matteuzzi C, Mattioli K R, Mauri A, Maurice E, Mauricio J, Mayencourt P, Mazorra de Cos J, Mazurek M, McCann M, Mcconnell L, McGrath T H, McHugh N T, McNab A, McNulty R, Meadows B, Meier G, Melnychuk D, Meng F M, Merk M, Merli A, Meyer Garcia L, Miao D, Miao H, Mikhasenko M, Milanes D A, Minotti A, Minucci E, Miralles T, Mitreska B, Mitzel D S, Modak A, Mohammed R A, Moise R D, Mokhnenko S, Molina Cardenas E F, Mombächer T, Monk M, Monteil S, Morcillo Gomez A, Morello G, Morello M J, Morgenthaler M P, Moron J, Morren W, Morris A B, Morris A G, Mountain R, Mu H, Mu Z M, Muhammad E, Muheim F, Mulder M, Müller K, Muñoz-Rojas F, Murta R, Naik P, Nakada T, Nandakumar R, Nanut T, Nasteva I, Needham M, Neri N, Neubert S, Neufeld N, Neustroev P, Nicolini J, Nicotra D, Niel E M, Nikitin N, Niu Q, Nogarolli P, Nogga P, Normand C, Novoa Fernandez J, Nowak G, Nunez C, Nur H N, Oblakowska-Mucha A, Obraztsov V, Oeser T, Okamura S, Okhotnikov A, Okhrimenko O, Oldeman R, Oliva F, Olocco M, Onderwater C J G, O'Neil R H, Osthues D, Otalora Goicochea J M, Owen P, Oyanguren A, Ozcelik O, Paciolla F, Padee A, Padeken K O, Pagare B, Pais P R, Pajero T, Palano A, Palutan M, Pan X, Panshin G, Paolucci L, Papanestis A, Pappagallo M, Pappalardo L L, Pappenheimer C, Parkes C, Parmar D, Passalacqua B, Passaleva G, Passaro D, Pastore A, Patel M, Patoc J, Patrignani C, Paul A, Pawley C J, Pellegrino A, Peng J, Pepe Altarelli M, Perazzini S, Pereima D, Pereira Da Costa H, Pereiro Castro A, Perret P, Perrevoort A, Perro A, Peters M J, Petridis K, Petrolini A, Pfaller J P, Pham H, Pica L, Piccini M, Piccolo L, Pietrzyk B, Pietrzyk G, Pinci D, Pisani F, Pizzichemi M, Placinta V, Plo Casasus M, Poeschl T, Polci F, Poli Lener M, Poluektov A, Polukhina N, Polyakov I, Polycarpo E, Ponce S, Popov D, Poslavskii S, Prasanth K, Prouve C, Provenzano D, Pugatch V, Punzi G, Qasim S, Qian Q Q, Qian W, Qin N, Qu S, Quagliani R, Rabadan Trejo R I, Rademacker J H, Rama M, Ramírez García M, Ramos De Oliveira V, Ramos Pernas M, Rangel M S, Ratnikov F, Raven G, Rebollo De Miguel M, Redi F, Reich J, Reiss F, Ren Z, Resmi P K, Ribatti R, Ricart G R, Riccardi D, Ricciardi S, Richardson K, Richardson-Slipper M, Rinnert K, Robbe P, Robertson G, Rodrigues E, Rodriguez Alvarez A, Rodriguez Fernandez E, Rodriguez Lopez J A, Rodriguez Rodriguez E, Roensch J, Rogachev A, Rogovskiy A, Rolf D L, Roloff P, Romanovskiy V, Romero Vidal A, Romolini G, Ronchetti F, Rong T, Rotondo M, Roy S R, Rudolph M S, Ruiz Diaz M, Ruiz Fernandez R A, Ruiz Vidal J, Ryzhikov A, Ryzka J, Saavedra-Arias J J, Saborido Silva J J, Sadek R, Sagidova N, Sahoo D, Sahoo N, Saitta B, Salomoni M, Sanderswood I, Santacesaria R, Santamarina Rios C, Santimaria M, Santoro L, Santovetti E, Saputi A, Saranin D, Sarnatskiy A, Sarpis G, Sarpis M, Satriano C, Satta A, Saur M, Savrina D, Sazak H, Sborzacchi F, Scantlebury Smead L G, Scarabotto A, Schael S, Scherl S, Schiller M, Schindler H, Schmelling M, Schmidt B, Schmitt S, Schmitz H, Schneider O, Schopper A, Schulte N, Schulte S, Schune M H, Schwemmer R, Schwering G, Sciascia B, Sciuccati A, Segal I, Sellam S, Semennikov A, Senger T, Senghi Soares M, Sergi A, Serra N, Sestini L, Seuthe A, Shang Y, Shangase D M, Shapkin M, Sharma R S, Shchemerov I, Shchutska L, Shears T, Shekhtman L, Shen Z, Sheng S, Shevchenko V, Shi B, Shi Q, Shimizu Y, Shmanin E, Shorkin R, Shupperd J D, Silva Coutinho R, Simi G, Simone S, Skidmore N, Skwarnicki T, Slater M W, Smallwood J C, Smith E, Smith K, Smith M, Snoch A, Soares Lavra L, Sokoloff M D, Soler F J P, Solomin A, Solovev A, Solovyev I, Sommerfeld N S, Song R, Song Y, Song Y, Song Y S, Souza De Almeida F L, Souza De Paula B, Spadaro Norella E, Spedicato E, Speer J G, Spiridenkov E, Spradlin P, Sriskaran V, Stagni F, Stahl M, Stahl S, Stanislaus S, Stein E N, Steinkamp O, Stenyakin O, Stevens H, Strekalina D, Su Y, Suljik F, Sun J, Sun L, Sundfeld D, Sutcliffe W, Swallow P N, Swientek K, Swystun F, Szabelski A, Szumlak T, Tan Y, Tang Y, Tat M D, Terentev A, Terzuoli F, Teubert F, Thomas E, Thompson D J D, Tilquin H, Tisserand V, T'Jampens S, Tobin M, Tomassetti L, Tonani G, Tong X, Torres Machado D, Toscano L, Tou D Y, Trippl C, Tuci G, Tuning N, Uecker L H, Ukleja A, Unverzagt D J, Urbach B, Ursov E, Usachov A, Ustyuzhanin A, Uwer U, Vagnoni V, Valcarce Cadenas V, Valenti G, Valls Canudas N, van Eldik J, Van Hecke H, van Herwijnen E, Van Hulse C B, Van Laak R, van Veghel M, Vasquez G, Vazquez Gomez R, Vazquez Regueiro P, Vázquez Sierra C, Vecchi S, Velthuis J J, Veltri M, Venkateswaran A, Verdoglia M, Vesterinen M, Vico Benet D, Vidrier Villalba P, Vieites Diaz M, Vilasis-Cardona X, Vilella Figueras E, Villa A, Vincent P, Volle F C, Vom Bruch D, Voropaev N, Vos K, Vrahas C, Wagner J, Walsh J, Walton E J, Wan G, Wang C, Wang G, Wang H, Wang J, Wang J, Wang J, Wang J, Wang M, Wang N W, Wang R, Wang X, Wang X, Wang X W, Wang Y, Wang Y W, Wang Z, Wang Z, Wang Z, Ward J A, Waterlaat M, Watson N K, Websdale D, Wei Y, Wendel J, Westhenry B D C, White C, Whitehead M, Whiter E, Wiederhold A R, Wiedner D, Wilkinson G, Wilkinson M K, Williams M, Williams M J, Williams M R J, Williams R, Williams Z, Wilson F F, Winn M, Wislicki W, Witek M, Witola L, Wormser G, Wotton S A, Wu H, Wu J, Wu X, Wu Y, Wu Z, Wyllie K, Xian S, Xiang Z, Xie Y, Xu A, Xu J, Xu L, Xu L, Xu M, Xu Z, Xu Z, Xu Z, Yang K, Yang S, Yang X, Yang Y, Yang Z, Yeroshenko V, Yeung H, Yin H, Yin X, Yu C Y, Yu J, Yuan X, Yuan Y, Zaffaroni E, Zavertyaev M, Zdybal M, Zenesini F, Zeng C, Zeng M, Zhang C, Zhang D, Zhang J, Zhang L, Zhang S, Zhang S, Zhang Y, Zhang Y Z, Zhang Z, Zhao Y, Zharkova A, Zhelezov A, Zheng S Z, Zheng X Z, Zheng Y, Zhou T, Zhou X, Zhou Y, Zhovkovska V, Zhu L Z, Zhu X, Zhu X, Zhukov V, Zhuo J, Zou Q, Zuliani D, Zunica G
Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands.
Department of Physics, University of Warwick, Coventry, United Kingdom.
Phys Rev Lett. 2025 Mar 14;134(10):101802. doi: 10.1103/PhysRevLett.134.101802.
A study of Λ_{b}^{0} and Ξ_{b}^{0} decays to Λh^{+}h^{'-} (h^{(')}=π,K) is performed using pp collision data collected by the LHCb experiment during LHC Runs 1-2, corresponding to an integrated luminosity of 9 fb^{-1}. The branching fractions for these decays are measured using the Λ_{b}^{0}→Λ_{c}^{+}(→Λπ^{+})π^{-} decay as a control channel. The decays Λ_{b}^{0}→Λπ^{+}π^{-} and Ξ_{b}^{0}→ΛK^{-}π^{+} are observed for the first time. For decay modes with sufficient signal yields, CP asymmetries are measured in the full and localized regions of the final-state phase space. Evidence is found for CP violation in the Λ_{b}^{0}→ΛK^{+}K^{-} decay, interpreted as originating primarily from an asymmetric Λ_{b}^{0}→N^{*+}K^{-} decay amplitude. The measured CP asymmetries for other decays are compatible with zero.
利用大型强子对撞机底夸克实验（LHCb）在大型强子对撞机第1 - 2阶段运行期间收集的质子-质子碰撞数据进行了一项研究，该数据对应的积分亮度为9 fb⁻¹，研究内容为Λb⁰和Ξb⁰衰变为Λh⁺h⁻（h⁽⁾ = π，K）。这些衰变的分支比通过Λb⁰→Λc⁺（→Λπ⁺）π⁻衰变作为控制通道来测量。首次观测到Λb⁰→Λπ⁺π⁻和Ξb⁰→ΛK⁻π⁺衰变。对于具有足够信号产额的衰变模式，在末态相空间的全区域和局部区域测量了CP不对称性。在Λb⁰→ΛK⁺K⁻衰变中发现了CP破坏的证据，这主要源于不对称的Λb⁰→N⁺⁺K⁻衰变振幅。其他衰变测量得到的CP不对称性与零相符。
