First measurement of the decay-time-integrated $C\!P$ asymmetry in $B_s^0 \to D_s^- π^+$ decays
(2026)
Authors:
LHCb collaboration, R Aaij, M Abdelfatah, ASW Abdelmotteleb, C Abellan Beteta, F Abudinén, T Ackernley, AA Adefisoye, B Adeva, M Adinolfi, P Adlarson, C Agapopoulou, CA Aidala, Z Ajaltouni, S Akar, K Akiba, P Albicocco, J Albrecht, R Aleksiejunas, F Alessio, P Alvarez Cartelle, R Amalric, S Amato, JL Amey, Y Amhis, L An, L Anderlini, M Andersson, P Andreola, M Andreotti, S Andres Estrada, A Anelli, D Ao, C Arata, F Archilli, Z Areg, M Argenton, S Arguedas Cuendis, L Arnone, M Artuso, E Aslanides, R AtaÃde Da Silva, M Atzeni, B Audurier, JA Authier, D Bacher, I Bachiller Perea, S Bachmann, M Bachmayer, JJ Back, ZB Bai, P Baladron Rodriguez, V Balagura, A Balboni, W Baldini, Z Baldwin, L Balzani, H Bao, J Baptista de Souza Leite, C Barbero Pretel, M Barbetti, IR Barbosa, RJ Barlow, M Barnyakov, S Barsuk, W Barter, J Bartz, S Bashir, B Batsukh, PB Battista, A Bavarchee, A Bay, A Beck, M Becker, F Bedeschi, IB Bediaga, NA Behling, S Belin, A Bellavista, I Belov, I Belyaev, G Benane, G Bencivenni, E Ben-Haim, R Bernet, A Bertolin, F Betti, J Bex, O Bezshyyko, S Bhattacharya, MS Bieker, NV Biesuz, A Biolchini, M Birch, FCR Bishop, A Bitadze, A Bizzeti, T Blake, F Blanc, JE Blank, S Blusk, JA Boelhauve, O Boente Garcia, T Boettcher, A Bohare, C Bolognani, R Bolzonella, RB Bonacci, A Bordelius, F Borgato, S Borghi, M Borsato, JT Borsuk, E Bottalico, SA Bouchiba, M Bovill, TJV Bowcock, A Boyer, C Bozzi, JD Brandenburg, A Brea Rodriguez, N Breer, C Breitfeld, J Brodzicka, J Brown, D Brundu, E Buchanan, M Burgos Marcos, C Burr, C Buti, JS Butter, J Buytaert, W Byczynski, S Cadeddu, H Cai, Y Cai, A Caillet, R Calabrese, L Calefice, M Calvi, M Calvo Gomez, P Camargo Magalhaes, JI Cambon Bouzas, P Campana, AC Campos, AF Campoverde Quezada, Y Cao, S Capelli, M Caporale, L Capriotti, R Caravaca-Mora, A Carbone, L Carcedo Salgado, R Cardinale, A Cardini, P Carniti, L Carus, A Casais Vidal, R Caspary, G Casse, M Cattaneo, G Cavallero, V Cavallini, S Celani, I Celestino, S Cesare, AJ Chadwick, I Chahrour, M Charles, Ph Charpentier, E Chatzianagnostou, R Cheaib, M Chefdeville, C Chen, J Chen, S Chen, Z Chen, A Chen Hu, M Cherif, A Chernov, S Chernyshenko, X Chiotopoulos, G Chizhik, V Chobanova, M Chrzaszcz, V Chulikov, P Ciambrone, X Cid Vidal, G Ciezarek, P Cifra, PEL Clarke, M Clemencic, HV Cliff, J Closier, C Cocha Toapaxi, V Coco, J Cogan, E Cogneras, L Cojocariu, S Collaviti, P Collins, T Colombo, M Colonna, A Comerma-Montells, L Congedo, J Connaughton, A Contu, N Cooke, G Cordova, C Coronel, I Corredoira, A Correia, G Corti, GC Costantino, J Cottee Meldrum, B Couturier, DC Craik, N Crepet, M Cruz Torres, M Cubero Campos, E Curras Rivera, R Currie, CL Da Silva, X Dai, E Dall'Occo, J Dalseno, C D'Ambrosio, J Daniel, G Darze, A Davidson, JE Davies, O De Aguiar Francisco, C De Angelis, F De Benedetti, J de Boer, K De Bruyn, S De Capua, M De Cian, U De Freitas Carneiro Da Graca, E De Lucia, JM De Miranda, L De Paula, M De Serio, P De Simone, F De Vellis, JA de Vries, F Debernardis, D Decamp, S Dekkers, L Del Buono, B Delaney, J Deng, V Denysenko, O Deschamps, F Dettori, B Dey, P Di Nezza, S Ding, Y Ding, L Dittmann, AD Docheva, A Doheny, C Dong, F Dordei, AC dos Reis, AD Dowling, L Dreyfus, W Duan, P Duda, L Dufour, V Duk, P Durante, MM Duras, JM Durham, OD Durmus, A Dziurda, S Easo, E Eckstein, U Egede, S Eisenhardt, E Ejopu, L Eklund, M Elashri, D Elizondo Blanco, J Ellbracht, S Ely, A Ene, J Eschle, T Evans, F Fabiano, S Faghih, LN Falcao, B Fang, R Fantechi, L Fantini, M Faria, K Farmer, F Fassin, D Fazzini, L Felkowski, C Feng, M Feng, A Fernandez Casani, M Fernandez Gomez, AD Fernez, F Ferrari, F Ferreira Rodrigues, M Ferrillo, M Ferro-Luzzi, RA Fini, M Fiorini, M Firlej, KL Fischer, DS Fitzgerald, C Fitzpatrick, T Fiutowski, F Fleuret, A Fomin, M Fontana, LA Foreman, R Forty, D Foulds-Holt, V Franco Lima, M Franco Sevilla, M Frank, E Franzoso, G Frau, C Frei, DA Friday, J Fu, Q Führing, T Fulghesu, G Galati, MD Galati, A Gallas Torreira, D Galli, S Gambetta, M Gandelman, P Gandini, B Ganie, H Gao, R Gao, TQ Gao, Y Gao, Y Gao, Y Gao, LM Garcia Martin, P Garcia Moreno, J GarcÃa Pardiñas, P Gardner, L Garrido, C Gaspar, A Gavrikov, LL Gerken, E Gersabeck, M Gersabeck, T Gershon, S Ghizzo, Z Ghorbanimoghaddam, FI Giasemis, V Gibson, HK Giemza, AL Gilman, M Giovannetti, A Gioventù, L Girardey, MA Giza, FC Glaser, VV Gligorov, C Göbel, L Golinka-Bezshyyko, E Golobardes, A Golutvin, S Gomez Fernandez, W Gomulka, F Goncalves Abrantes, I Gonçales Vaz, M Goncerz, G Gong, JA Gooding, C Gotti, E Govorkova, JP Grabowski, LA Granado Cardoso, E Graugés, E Graverini, L Grazette, G Graziani, AT Grecu, NA Grieser, L Grillo, C Gu, M Guarise, L Guerry, A-K Guseinov, Y Guz, T Gys, K Habermann, T Hadavizadeh, C Hadjivasiliou, G Haefeli, C Haen, S Haken, G Hallett, PM Hamilton, Q Han, X Han, S Hansmann-Menzemer, N Harnew, TJ Harris, M Hartmann, S Hashmi, J He, N Heatley, A Hedes, F Hemmer, C Henderson, R Henderson, RDL Henderson, AM Hennequin, K Hennessy, J Herd, P Herrero Gascon, J Heuel, A Heyn, A Hicheur, G Hijano Mendizabal, J Horswill, R Hou, Y Hou, DC Houston, N Howarth, W Hu, X Hu, W Hulsbergen, RJ Hunter, D Hutchcroft, M Idzik, P Ilten, A Iohner, H Jage, SJ Jaimes Elles, S Jakobsen, T Jakoubek, E Jans, A Jawahery, C Jayaweera, A Jelavic, V Jevtic, Z Jia, E Jiang, X Jiang, Y Jiang, YJ Jiang, E Jimenez Moya, N Jindal, M John, A John Rubesh Rajan, D Johnson, CR Jones, S Joshi, B Jost, J Juan Castella, N Jurik, I Juszczak, K Kalecinska, D Kaminaris, S Kandybei, M Kane, Y Kang, C Kar, M Karacson, A Kauniskangas, JW Kautz, MK Kazanecki, F Keizer, M Kenzie, T Ketel, B Khanji, S Kholodenko, G Khreich, F Kiraz, T Kirn, VS Kirsebom, S Klaver, N Kleijne, A Kleimenova, DK Klekots, K Klimaszewski, MR Kmiec, T Knospe, R Kolb, S Koliiev, L Kolk, A Konoplyannikov, P Kopciewicz, P Koppenburg, A Korchin, I Kostiuk, O Kot, S Kotriakhova, E Kowalczyk, O Kravcov, M Kreps, W Krupa, W Krzemien, O Kshyvanskyi, S Kubis, M Kucharczyk, A Kupsc, V Kushnir, B Kutsenko, J Kvapil, I Kyryllin, D Lacarrere, P Laguarta Gonzalez, A Lai, A Lampis, D Lancierini, C Landesa Gomez, JJ Lane, G Lanfranchi, C Langenbruch, J Langer, T Latham, F Lazzari, C Lazzeroni, R Le Gac, H Lee, R Lefèvre, M Lehuraux, E Lemos Cid, O Leroy, T Lesiak, ED Lesser, B Leverington, A Li, C Li, C Li, H Li, J Li, K Li, L Li, P Li, P-R Li, Q Li, T Li, T Li, Y Li, Y Li, Y Li, Z Lian, Q Liang, X Liang, Z Liang, S Libralon, A Lightbody, C Lin, T Lin, R Lindner, H Linton, R Litvinov, D Liu, FL Liu, G Liu, K Liu, S Liu, W Liu, Y Liu, Y Liu, YL Liu, G Loachamin Ordonez, I Lobo, A Lobo Salvia, A Loi, T Long, FCL Lopes, JH Lopes, A Lopez Huertas, C Lopez Iribarnegaray, Q Lu, C Lucarelli, D Lucchesi, M Lucio Martinez, Y Luo, A Lupato, M Lupberger, E Luppi, K Lynch, S Lyu, X-R Lyu, H Ma, S Maccolini, F Machefert, F Maciuc, B Mack, I Mackay, LM Mackey, LR Madhan Mohan, MJ Madurai, D Magdalinski, JJ Malczewski, S Malde, L Malentacca, G Manca, G Mancinelli, C Mancuso, R Manera Escalero, A Mangalasseri, FM Manganella, D Manuzzi, S Mao, D Marangotto, JF Marchand, R Marchevski, U Marconi, E Mariani, S Mariani, C Marin Benito, J Marks, AM Marshall, L Martel, G Martelli, G Martellotti, L Martinazzoli, M Martinelli, D Martinez Gomez, D Martinez Santos, F Martinez Vidal, A Martorell I Granollers, A Massafferri, R Matev, A Mathad, C Matteuzzi, KR Mattioli, A Mauri, E Maurice, J Mauricio, P Mayencourt, J Mazorra de Cos, M Mazurek, D Mazzanti Tarancon, M McCann, NT McHugh, A McNab, R McNulty, B Meadows, D Melnychuk, D Mendoza Granada, P Menendez Valdes Perez, FM Meng, M Merk, A Merli, L Meyer Garcia, D Miao, H Miao, M Mikhasenko, DA Milanes, A Minotti, E Minucci, B Mitreska, DS Mitzel, R Mocanu, A Modak, L Moeser, RD Moise, EF Molina Cardenas, T Mombächer, M Monk, T Monnard, S Monteil, A Morcillo Gomez, G Morello, MJ Morello, MP Morgenthaler, A Moro, J Moron, W Morren, AB Morris, AG Morris, R Mountain, Z Mu, E Muhammad, F Muheim, M Mulder, K Müller, F Muñoz-Rojas, V Mytrochenko, P Naik, T Nakada, R Nandakumar, G Napoletano, I Nasteva, M Needham, N Neri, S Neubert, N Neufeld, J Nicolini, D Nicotra, EM Niel, L Nisi, Q Niu, BK Njoki, P Nogarolli, P Nogga, C Normand, J Novoa Fernandez, G Nowak, C Nunez, HN Nur, A Oblakowska-Mucha, T Oeser, O Okhrimenko, R Oldeman, F Oliva, E Olivart Pino, M Olocco, RH O'Neil, JS Ordonez Soto, D Osthues, JM Otalora Goicochea, P Owen, A Oyanguren, O Ozcelik, F Paciolla, A Padee, KO Padeken, B Pagare, T Pajero, A Palano, L Palini, M Palutan, C Pan, X Pan, S Panebianco, S Paniskaki, L Paolucci, A Papanestis, M Pappagallo, LL Pappalardo, C Pappenheimer, C Parkes, D Parmar, G Passaleva, D Passaro, A Pastore, M Patel, J Patoc, C Patrignani, A Paul, CJ Pawley, A Pellegrino, J Peng, X Peng, M Pepe Altarelli, S Perazzini, H Pereira Da Costa, M Pereira Martinez, A Pereiro Castro, C Perez, P Perret, A Perrevoort, A Perro, MJ Peters, K Petridis, A Petrolini, S Pezzulo, JP Pfaller, H Pham, L Pica, M Piccini, L Piccolo, B Pietrzyk, RN Pilato, D Pinci, F Pisani, M Pizzichemi, VM Placinta, M Plo Casasus, T Poeschl, F Polci, M Poli Lener, A Poluektov, I Polyakov, E Polycarpo, S Ponce, D Popov, K Popp, K Prasanth, C Prouve, D Provenzano, V Pugatch, A Puicercus Gomez, G Punzi, JR Pybus, Q Qian, W Qian, N Qin, R Quagliani, RI Rabadan Trejo, R Racz, JH Rademacker, M Rama, M RamÃrez GarcÃa, V Ramos De Oliveira, M Ramos Pernas, MS Rangel, G Raven, M Rebollo De Miguel, F Redi, J Reich, F Reiss, Z Ren, PK Resmi, M Ribalda Galvez, R Ribatti, G Ricart, D Riccardi, S Ricciardi, K Richardson, M Richardson-Slipper, F Riehn, K Rinnert, P Robbe, G Robertson, E Rodrigues, A Rodriguez Alvarez, E Rodriguez Fernandez, JA Rodriguez Lopez, E Rodriguez Rodriguez, J Roensch, A Rogovskiy, DL Rolf, P Roloff, V Romanovskiy, A Romero Vidal, G Romolini, F Ronchetti, T Rong, M Rotondo, MS Rudolph, M Ruiz Diaz, RA Ruiz Fernandez, J Ruiz Vidal, JJ Saavedra-Arias, JJ Saborido Silva, SER Sacha Emile R., D Sahoo, N Sahoo, B Saitta, M Salomoni, I Sanderswood, R Santacesaria, C Santamarina Rios, M Santimaria, L Santoro, E Santovetti, A Saputi, A Sarnatskiy, G Sarpis, M Sarpis, C Satriano, A Satta, M Saur, H Sazak, F Sborzacchi, A Scarabotto, S Schael, S Scherl, M Schiller, H Schindler, M Schmelling, B Schmidt, N Schmidt, S Schmitt, H Schmitz, O Schneider, A Schopper, N Schulte, MH Schune, G Schwering, B Sciascia, A Sciuccati, G Scriven, I Segal, S Sellam, T Senger, M Senghi Soares, A Sergi, N Serra, L Sestini, B Sevilla Sanjuan, Y Shang, DM Shangase, RS Sharma, L Shchutska, T Shears, J Shen, Z Shen, S Sheng, B Shi, J Shi, Q Shi, WS Shi, E Shmanin, R Silva Coutinho, G Simi, S Simone, M Singha, I Siral, N Skidmore, T Skwarnicki, MW Slater, E Smith, M Smith, L Soares Lavra, MD Sokoloff, FJP Soler, A Solomin, K Solovieva, NS Sommerfeld, R Song, Y Song, Y Song, YS Song, FL Souza De Almeida, B Souza De Paula, KM Sowa, E Spadaro Norella, E Spedicato, JG Speer, P Spradlin, F Stagni, M Stahl, S Stahl, S Stanislaus, M Stefaniak, O Steinkamp, Y Su, F Suljik, J Sun, J Sun, L Sun, D Sundfeld, W Sutcliffe, P Svihra, V Svintozelskyi, K Swientek, F Swystun, A Szabelski, T Szumlak, Y Tan, Y Tang, YT Tang, MD Tat, JA Teijeiro Jimenez, F Terzuoli, F Teubert, E Thomas, DJD Thompson, AR Thomson-Strong, H Tilquin, V Tisserand, S T'Jampens, M Tobin, TT Todorov, L Tomassetti, G Tonani, X Tong, T Tork, L Toscano, DY Tou, C Trippl, G Tuci, N Tuning, LH Uecker, A Ukleja, DJ Unverzagt, A Upadhyay, B Urbach, A Usachov, U Uwer, V Vagnoni, A Vaitkevicius, V Valcarce Cadenas, G Valenti, N Valls Canudas, J van Eldik, H Van Hecke, E van Herwijnen, CB Van Hulse, R Van Laak, M van Veghel, G Vasquez, R Vazquez Gomez, P Vazquez Regueiro, C Vázquez Sierra, S Vecchi, J Velilla Serna, JJ Velthuis, M Veltri, A Venkateswaran, M Verdoglia, M Vesterinen, W Vetens, D Vico Benet, P Vidrier Villalba, M Vieites Diaz, X Vilasis-Cardona, E Vilella Figueras, A Villa, P Vincent, B Vivacqua, FC Volle, D vom Bruch, K Vos, C Vrahas, J Wagner, J Walsh, N Walter, EJ Walton, G Wan, A Wang, B Wang, C Wang, G Wang, H Wang, J Wang, J Wang, J Wang, J Wang, M Wang, NW Wang, R Wang, X Wang, X Wang, XW Wang, Y Wang, Y Wang, YH Wang, Z Wang, Z Wang, JA Ward, M Waterlaat, NK Watson, D Websdale, Y Wei, Z Weida, J Wendel, BDC Westhenry, C White, M Whitehead, E Whiter, AR Wiederhold, D Wiedner, MA Wiegertjes, C Wild, G Wilkinson, MK Wilkinson, M Williams, MJ Williams, MRJ Williams, R Williams, S Williams, Z Williams, FF Wilson, M Winn, W Wislicki, M Witek, L Witola, T Wolf, E Wood, G Wormser, SA Wotton, H Wu, J Wu, X Wu, Y Wu, Z Wu, K Wyllie, S Xian, Z Xiang, Y Xie, TX Xing, A Xu, L Xu, M Xu, R Xu, Z Xu, Z Xu, Z Xu, S Yadav, K Yang, X Yang, Y Yang, Y Yang, Z Yang, Z Yang, H Yeung, H Yin, X Yin, CY Yu, J Yu, X Yuan, Y Yuan, JA Zamora Saa, M Zavertyaev, M Zdybal, F Zenesini, C Zeng, M Zeng, SH Zeng, C Zhang, D Zhang, J Zhang, L Zhang, R Zhang, S Zhang, SL Zhang, Y Zhang, Z Zhang, Y Zhao, A Zhelezov, SZ Zheng, XZ Zheng, Y Zheng, T Zhou, X Zhou, V Zhovkovska, LZ Zhu, X Zhu, X Zhu, Y Zhu, V Zhukov, J Zhuo, D Zuliani, G Zunica51ÁÔÆæÈë¿Ú of the CP Violating Phase γ at the LHCb Experiment
Springer Nature Switzerland, 2026
Deuteron identification via time of flight with LHCb
European Physical Journal C Springer Nature 85:11 (2025) 1329
Authors:
R Aaij, ASW Abdelmotteleb, C Abellan Beteta, F Abudinén, T Ackernley, AA Adefisoye, B Adeva, M Adinolfi, P Adlarson, C Agapopoulou, CA Aidala, Z Ajaltouni, S Akar, K Akiba, M Akthar, P Albicocco, J Albrecht, R Aleksiejunas, F Alessio, P Alvarez Cartelle, R Amalric, S Amato, JL Amey, Y Amhis, L An, L Anderlini, M Andersson, P Andreola, M Andreotti, S Andres Estrada, A Anelli, D Ao, C Arata, F Archilli, Z Areg, M Argenton, S Arguedas Cuendis, L Arnone, A Artamonov, M Artuso, E Aslanides, R AtaÃde Da Silva, M Atzeni, B Audurier, JA Authier, D Bacher, I Bachiller Perea, S Bachmann, M Bachmayer, JJ Back, P Baladron Rodriguez, V Balagura, A Balboni, W Baldini, Z Baldwin, L Balzani, H Bao, J Baptista de Souza Leite, C Barbero Pretel, M Barbetti, IR Barbosa, RJ Barlow, M Barnyakov, S Barsuk, W Barter, J Bartz, S Bashir, B Batsukh, PB Battista, A Bay, A Beck, M Becker, F Bedeschi, IB Bediaga, NA Behling, S Belin, A Bellavista, K Belous, I Belov, I Belyaev, G Benane, G Bencivenni, E Ben-Haim, A Berezhnoy, R Bernet, S Bernet Andres, A Bertolin, F Betti, J Bex, O Bezshyyko, J Bhom, MS Bieker, NV Biesuz, A Biolchini, M Birch, FCR Bishop, A Bitadze, A Bizzeti, T Blake, F Blanc, JE Blank, S Blusk, V Bocharnikov, JA Boelhauve, O Boente Garcia, T Boettcher, A Bohare, A Boldyrev, CS Bolognani, R Bolzonella, RB Bonacci, N Bondar, A Bordelius, F Borgato, S Borghi, M Borsato, JT Borsuk, E Bottalico, SA Bouchiba, M Bovill, TJV Bowcock, A Boyer, C Bozzi, JD Brandenburg, A Brea Rodriguez, N Breer, J Brodzicka, A Brossa Gonzalo, J Brown, D Brundu, E Buchanan, M Burgos Marcos, AT Burke, C Burr, C Buti, JS Butter, J Buytaert, W Byczynski, S Cadeddu, H Cai, Y Cai, A Caillet, R Calabrese, S Calderon Ramirez, L Calefice, M Calvi, M Calvo Gomez, P Camargo Magalhaes, JI Cambon Bouzas, P Campana, DH Campora Perez, AF Campoverde Quezada, S Capelli, M Caporale, L Capriotti, R Caravaca-Mora, A Carbone, L Carcedo Salgado, R Cardinale, A Cardini, P Carniti, L Carus, A Casais Vidal, R Caspary, G Casse, M Cattaneo, G Cavallero, V Cavallini, S Celani, I Celestino, S Cesare, F Cesario Laterza Lopes, AJ Chadwick, I Chahrour, H Chang, M Charles, Ph Charpentier, E Chatzianagnostou, R Cheaib, M Chefdeville, C Chen, J Chen, S Chen, Z Chen, M Cherif, A Chernov, S Chernyshenko, X Chiotopoulos, V Chobanova, M Chrzaszcz, A Chubykin, V Chulikov, P Ciambrone, X Cid Vidal, G Ciezarek, P Cifra, PEL Clarke, M Clemencic, HV Cliff, J Closier, C Cocha Toapaxi, V Coco, J Cogan, E Cogneras, L Cojocariu, S Collaviti, P Collins, T Colombo, M Colonna, A Comerma-Montells, L Congedo, J Connaughton, A Contu, N Cooke, G Cordova, C Coronel, I Corredoira, A Correia, G Corti, J Cottee Meldrum, B Couturier, DC Craik, M Cruz Torres, E Curras Rivera, R Currie, CL Da Silva, S Dadabaev, L Dai, X Dai, E Dall’Occo, J Dalseno, C D’Ambrosio, J Daniel, P d’Argent, G Darze, A Davidson, JE Davies, O De Aguiar Francisco, C De Angelis, F De Benedetti, J de Boer, K De Bruyn, S De Capua, M De Cian, U De Freitas Carneiro Da Graca, E De Lucia, JM De Miranda, L De Paula, M De Serio, P De Simone, F De Vellis, JA de Vries, F Debernardis, D Decamp, S Dekkers, L Del Buono, B Delaney, H-P Dembinski, J Deng, V Denysenko, O Deschamps, F Dettori, B Dey, P Di Nezza, I Diachkov, S Didenko, S Ding, Y Ding, L Dittmann, V Dobishuk, AD Docheva, A Doheny, C Dong, AM Donohoe, F Dordei, AC dos Reis, AD Dowling, L Dreyfus, W Duan, P Duda, L Dufour, V Duk, P Durante, MM Duras, JM Durham, OD Durmus, A Dziurda, A Dzyuba, S Easo, E Eckstein, U Egede, A Egorychev, V Egorychev, S Eisenhardt, E Ejopu, L Eklund, M Elashri, J Ellbracht, S Ely, A Ene, J Eschle, S Esen, T Evans, F Fabiano, S Faghih, LN Falcao, B Fang, R Fantechi, L Fantini, M Faria, K Farmer, D Fazzini, L Felkowski, M Feng, M Feo, A Fernandez Casani, M Fernandez Gomez, AD Fernez, F Ferrari, F Ferreira Rodrigues, M Ferrillo, M Ferro-Luzzi, S Filippov, RA Fini, M Fiorini, M Firlej, KL Fischer, DS Fitzgerald, C Fitzpatrick, T Fiutowski, F Fleuret, A Fomin, M Fontana, LF Foreman, R Forty, D Foulds-Holt, V Franco Lima, M Franco Sevilla, M Frank, E Franzoso, G Frau, C Frei, DA Friday, J Fu, Q Führing, T Fulghesu, G Galati, MD Galati, A Gallas Torreira, D Galli, S Gambetta, M Gandelman, P Gandini, B Ganie, H Gao, R Gao, TQ Gao, Y Gao, Y Gao, Y Gao, LM Garcia Martin, P Garcia Moreno, J GarcÃa Pardiñas, P Gardner, KG Garg, L Garrido, C Gaspar, A Gavrikov, LL Gerken, E Gersabeck, M Gersabeck, T Gershon, S Ghizzo, Z Ghorbanimoghaddam, FI Giasemis, V Gibson, HK Giemza, AL Gilman, M Giovannetti, A Gioventù, L Girardey, MA Giza, FC Glaser, VV Gligorov, C Göbel, L Golinka-Bezshyyko, E Golobardes, D Golubkov, A Golutvin, S Gomez Fernandez, W Gomulka, I Gonçales Vaz, F Goncalves Abrantes, M Goncerz, G Gong, JA Gooding, IV Gorelov, C Gotti, E Govorkova, JP Grabowski, LA Granado Cardoso, E Graugés, E Graverini, L Grazette, G Graziani, AT Grecu, NA Grieser, L Grillo, S Gromov, C Gu, M Guarise, L Guerry, V Guliaeva, PA Günther, A-K Guseinov, E Gushchin, Y Guz, T Gys, K Habermann, T Hadavizadeh, C Hadjivasiliou, G Haefeli, C Haen, S Haken, G Hallett, PM Hamilton, J Hammerich, Q Han, X Han, S Hansmann-Menzemer, L Hao, N Harnew, TH Harris, M Hartmann, S Hashmi, J He, A Hedes, F Hemmer, C Henderson, R Henderson, RDL Henderson, AM Hennequin, K Hennessy, L Henry, J Herd, P Herrero Gascon, J Heuel, A Heyn, A Hicheur, G Hijano Mendizabal, J Horswill, R Hou, Y Hou, DC Houston, N Howarth, J Hu, W Hu, X Hu, W Hulsbergen, RJ Hunter, M Hushchyn, D Hutchcroft, M Idzik, D Ilin, P Ilten, A Iniukhin, A Iohner, A Ishteev, K Ivshin, H Jage, SJ Jaimes Elles, S Jakobsen, E Jans, BK Jashal, A Jawahery, C Jayaweera, V Jevtic, Z Jia, E Jiang, X Jiang, Y Jiang, YJ Jiang, E Jimenez Moya, N Jindal, M John, A John Rubesh Rajan, D Johnson, CR Jones, S Joshi, B Jost, J Juan Castella, N Jurik, I Juszczak, D Kaminaris, S Kandybei, M Kane, Y Kang, C Kar, M Karacson, A Kauniskangas, JW Kautz, MK Kazanecki, F Keizer, M Kenzie, T Ketel, B Khanji, A Kharisova, S Kholodenko, G Khreich, T Kirn, VS 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E Thomas, DJD Thompson, AR Thomson-Strong, H Tilquin, V Tisserand, S T’Jampens, M Tobin, TT Todorov, L Tomassetti, G Tonani, X Tong, T Tork, D Torres Machado, L Toscano, DY Tou, C Trippl, G Tuci, N Tuning, LH Uecker, A Ukleja, DJ Unverzagt, A Upadhyay, B Urbach, A Usachov, A Ustyuzhanin, U Uwer, V Vagnoni, V Valcarce Cadenas, G Valenti, N Valls Canudas, J van Eldik, H Van Hecke, E van Herwijnen, CB Van Hulse, R Van Laak, M van Veghel, G Vasquez, R Vazquez Gomez, P Vazquez Regueiro, C Vázquez Sierra, S Vecchi, J Velilla Serna, JJ Velthuis, M Veltri, A Venkateswaran, M Verdoglia, M Vesterinen, W Vetens, D Vico Benet, P Vidrier Villalba, M Vieites Diaz, X Vilasis-Cardona, E Vilella Figueras, A Villa, P Vincent, B Vivacqua, FC Volle, D vom Bruch, N Voropaev, K Vos, C Vrahas, J Wagner, J Walsh, EJ Walton, G Wan, A Wang, B Wang, C Wang, G Wang, H Wang, J Wang, J Wang, J Wang, J Wang, M Wang, NW Wang, R Wang, X Wang, X Wang, XW Wang, Y Wang, Y Wang, YH Wang, Z Wang, Z Wang, JA Ward, M Waterlaat, NK Watson, D Websdale, Y Wei, Z Weida, J Wendel, BDC Westhenry, C White, M Whitehead, E Whiter, AR Wiederhold, D Wiedner, MA Wiegertjes, C Wild, G Wilkinson, MK Wilkinson, M Williams, MJ Williams, MRJ Williams, R Williams, S Williams, Z Williams, FF Wilson, M Winn, W Wislicki, M Witek, L Witola, T Wolf, E Wood, G Wormser, SA Wotton, H Wu, J Wu, X Wu, Y Wu, Z Wu, K Wyllie, S Xian, Z Xiang, Y Xie, TX Xing, A Xu, L Xu, L Xu, M Xu, Z Xu, Z Xu, Z Xu, K Yang, X Yang, Y Yang, Y Yang, Z Yang, V Yeroshenko, H Yeung, H Yin, X Yin, CY Yu, J Yu, X Yuan, Y Yuan, E Zaffaroni, JA Zamora Saa, M Zavertyaev, M Zdybal, F Zenesini, C Zeng, M Zeng, C Zhang, D Zhang, J Zhang, L Zhang, R Zhang, S Zhang, S Zhang, Y Zhang, YZ Zhang, Z Zhang, Y Zhao, A Zhelezov, SZ Zheng, XZ Zheng, Y Zheng, T Zhou, X Zhou, Y Zhou, V Zhovkovska, LZ Zhu, X Zhu, X Zhu, Y Zhu, V Zhukov, J Zhuo, Q Zou, D Zuliani, G ZunicaAbstract:
It is shown that the timing capabilities of the LHCb detector operated during the LHC Run 2 can be used to identify light ion particles with momenta of a few GeV/c. This is achieved by estimating the particle time of flight through a newly developed technique. A dedicated reconstruction procedure and a neural-network-based estimator of the particle speed have been developed to enable deuteron identification by suppressing the abundant background from lighter particles. The performance of the identification procedure is demonstrated in a sample of proton-helium collisions at sNN$$\sqrt{s_{\scriptscriptstyle \text {NN}}} $$ = 110 GeV, where the production of deuteron and triton particles is observed. This novel approach opens the way to study deuteron and antideuteron production for different collision systems at different energy scales, exploiting the rich dataset collected by the LHCb experiment.The LHCb Sprucing and Analysis Productions
Computing and Software for Big Science Springer 9:1 (2025) 15
Authors:
Ahmed Abdelmotteleb, Alessandro Bertolin, Chris Burr, Ben Couturier, Ellinor Eckstein, Davide Fazzini, Nathan Grieser, Christophe Haen, Ryunosuke O’Neil, Eduardo Rodrigues, Nicole Skidmore, Mark Smith, Aidan R Wiederhold, Shunan ZhangAbstract:
The LHCb detector underwent a comprehensive upgrade in preparation for the third data-taking run of the Large Hadron Collider (LHC), known as LHCb Upgrade I. With its increased data rate, Run 3 introduced considerable challenges in both data acquisition (online) and data processing and analysis (offline). The offline processing and analysis model was upgraded to handle the factor 30 increase in data volume and the associated demands of ever-growing datasets for analysis, led by the LHCb Data Processing and Analysis (DPA) project. This paper documents the LHCb “Sprucing" — the centralised offline data processing and selections — and “Analysis Productions" — the centralised and highly automated declarative nTuple production system. The DaVinci application used by analysis productions for tupling spruced data is described as well as the apd and lbconda tools for data retrieval and analysis environment configuration. These tools allow for greatly improved analyst workflows and analysis preservation. Finally, the approach to data processing and analysis in the High-Luminosity Large Hadron Collider (HL-LHC) era — LHCb Upgrade II — is discussed.Observation of the $${{{\varLambda } ^0_{b}} \!\rightarrow {{J \hspace{-1.66656pt}/\hspace{-1.111pt}\psi }} {{\varXi } ^-} {{K} ^+} }$$ and $${{{{\varXi } ^0_{b}} \!\rightarrow {{J \hspace{-1.66656pt}/\hspace{-1.111pt}\psi }} {{\varXi } ^-} {{\pi } ^+} }}$$ decays
The European Physical Journal C SpringerOpen 85:7 (2025) 812