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KMohr, RCMCasse, GCassina, LCastillo Garcia, LCattaneo, MCauet, CCenci, RCharles, MCharpentier, PChefdeville, MChen, SCheung, SFChiapolini, NChrzaszcz, MCid Vidal, XCiezarek, GClarke, PClemencic, MCliff, HClosier, JCoco, VCogan, JCogneras, ECogoni, VCojocariu, LCollazuol, GCollins, PComerma-Montells, AContu, ACook, ACoombes, MCoquereau, SCorti, GCorvo, MCounts, ICouturier, BCowan, GCraik, DCrocombe, ACruz Torres, MCunliffe, SCurrie, RD'Ambrosio, CDalseno, JDavid, PDavid, PDavis, ABruyn, KCapua, SCian, MMiranda, JPaula, LSilva, WSimone, PDean, C-TDecamp, DDeckenhoff, MBuono, LDéléage, NDerkach, DDeschamps, ODettori, FCanto, ADijkstra, HDonleavy, SDordei, FDorigo, MDosil Suárez, ADossett, DDovbnya, ADreimanis, KDujany, GDupertuis, FDurante, PDzhelyadin, RDziurda, ADzyuba, AEaso, SEgede, UEgorychev, VEidelman, SEisenhardt, SEitschberger, UEkelhof, REklund, LRifai, IElsasser, CEly, SEsen, SEvans, H-MEvans, TFalabella, AFärber, CFarinelli, CFarley, NFarry, SFay, RFerguson, DFernandez Albor, VFerreira Rodrigues, FFerro-Luzzi, MFilippov, SFiore, MFiorini, MFirlej, MFitzpatrick, CFiutowski, TFol, PFontana, MFontanelli, FForty, RFrancisco, OFrank, MFrei, CFrosini, MFu, JFurfaro, EGallas Torreira, AGalli, DGallorini, SGambetta, SGandelman, MGandini, PGao, YGarcía Pardiñas, JGarofoli, JGarra Tico, JGarrido, LGascon, DGaspar, CGastaldi, UGauld, RGavardi, LGazzoni, GGeraci, AGersabeck, EGersabeck, MGershon, TGhez, PGianelle, AGianì, SGibson, VGiubega, LGligorov, VGobel, CGolubkov, DGolutvin, AGomes, AGotti, CGrabalosa Gándara, MGraciani Diaz, RGranado Cardoso, LGraugés, EGraverini, EGraziani, GGrecu, AGreening, EGregson, SGriffith, PGrillo, LGrünberg, OGui, BGushchin, EGuz, YGys, THadjivasiliou, CHaefeli, GHaen, CHaines, SHall, SHamilton, BHampson, THan, XHansmann-Menzemer, SHarnew, NHarnew, SHarrison, JHe, JHead, THeijne, VHennessy, KHenrard, PHenry, LHernando Morata, JHerwijnen, EHess, MHicheur, AHill, DHoballah, MHombach, CHulsbergen, WHussain, NHutchcroft, DHynds, DIdzik, MIlten, PJacobsson, RJaeger, AJalocha, JJans, EJaton, PJawahery, AJing, FJohn, MJohnson, DJones, CJoram, CJost, BJurik, NKandybei, SKanso, WKaracson, MKarbach, TKarodia, SKelsey, MKenyon, IKetel, TKhanji, BKhurewathanakul, CKlaver, SKlimaszewski, KKochebina, OKolpin, MKomarov, IKoopman, RKoppenburg, PKorolev, MKravchuk, LKreplin, KKreps, MKrocker, GKrokovny, PKruse, FKucewicz, WKucharczyk, MKudryavtsev, VKurek, KKvaratskheliya, TThi, VLacarrere, DLafferty, GLai, ALambert, DLambert, RLanfranchi, GLangenbruch, CLanghans, BLatham, TLazzeroni, CGac, RLeerdam, JLees, J-PLefSvre, RLeflat, ALefrancois, JLeo, SLeroy, OLesiak, TLeverington, BLi, YLikhomanenko, TLiles, MLindner, RLinn, CLionetto, FLiu, BLohn, SLongstaff, ILopes, JLowdon, PLucchesi, DLuo, HLupato, ALuppi, ELupton, OMachefert, FMachikhiliyan, IMaciuc, FMaev, OMalde, SMalinin, AManca, GMancinelli, GMapelli, AMaratas, JMarchand, JMarconi, UMarin Benito, CMarino, PMärki, RMarks, JMartellotti, GMartín Sanchez, AMartinelli, MMartinez Santos, DMartinez Vidal, FMartins Tostes, DMassafferri, AMatev, RMathe, ZMatteuzzi, CMazurov, AMcCann, MMcCarthy, JMcNab, AMcNulty, RMcSkelly, BMeadows, BMeier, FMeissner, MMerk, MMilanes, DMinard, M-NMoggi, NMolina Rodriguez, JMonteil, SMorandin, MMorawski, PMordà , AMorello, MMoron, JMorris, A-BMountain, RMuheim, FMüller, KMussini, MMuster, BNaik, PNakada, TNandakumar, RNasteva, INeedham, MNeri, NNeubert, SNeufeld, NNeuner, MNguyen, ANguyen, TNguyen-Mau, CNicol, MNiess, VNiet, RNikitin, NNikodem, TNovoselov, AO'Hanlon, DOblakowska-Mucha, AObraztsov, VOggero, SOgilvy, SOkhrimenko, OOldeman, ROnderwater, COrlandea, MOtalora Goicochea, JOtto, AOwen, POyanguren, APal, BPalano, APalombo, FPalutan, MPanman, JPapanestis, APappagallo, MPappalardo, LParkes, CParkinson, CPassaleva, GPatel, GPatel, MPatrignani, CPearce, APellegrino, APenso, GPepe Altarelli, MPerazzini, SPerret, PPerrin-Terrin, MPescatore, LPesen, EPetridis, KPetrolini, APicatoste Olloqui, EPietrzyk, BPilar, TPinci, DPistone, APlayfer, SPlo Casasus, MPolci, FPolikarpov, SPoluektov, APolyakov, IPolycarpo, EPopov, APopov, DPopovici, BPotterat, CPrice, EPrice, JPrisciandaro, JPritchard, AProuve, CPugatch, VPuig Navarro, APunzi, GQian, WRachwal, BRademacker, JRakotomiaramanana, BRama, MRangel, MRaniuk, IRauschmayr, NRaven, GRedi, FReichert, SReid, MReis, ARicciardi, SRichards, SRihl, MRinnert, KRives Molina, VRobbe, PRodrigues, ARodrigues, ERodriguez Perez, PRoiser, SRomanovsky, VRomero Vidal, ARotondo, MRouvinet, JRuf, TRuiz, HRuiz Valls, PSaborido Silva, JSagidova, NSail, PSaitta, BSalustino Guimaraes, VSanchez Mayordomo, CSanmartin Sedes, BSantacesaria, RSantamarina Rios, CSantovetti, ESarti, ASatriano, CSatta, ASaunders, DSavrina, DSchiller, MSchindler, HSchlupp, MSchmelling, MSchmidt, BSchneider, OSchopper, ASchune, M-HSchwemmer, RSciascia, BSciubba, ASemennikov, ASepp, ISerra, NSerrano, JSestini, LSeyfert, PShapkin, MShapoval, IShcheglov, YShears, TShekhtman, LShevchenko, VShires, ASilva Coutinho, RSimi, GSirendi, MSkidmore, NSkillicorn, ISkwarnicki, TSmith, NSmith, ESmith, ESmith, JSmith, MSnoek, HSokoloff, MSoler, FSoomro, FSouza, DSouza De Paula, BSpaan, BSpradlin, PSridharan, SStagni, FStahl, MStahl, SSteinkamp, OStenyakin, OStevenson, SStoica, SStone, SStoraci, BStracka, SStraticiuc, MStraumann, UStroili, RSun, LSutcliffe, WSwientek, KSwientek, SSyropoulos, VSzczekowski, MSzczypka, PSzumlak, TT'Jampens, STeklishyn, MTellarini, GTeubert, FThomas, CThomas, ETilburg, JTisserand, VTobin, MTodd, JTolk, STomassetti, LTonelli, DTopp-Joergensen, STorr, NTournefier, ETourneur, STran, MTresch, MTrisovic, ATsaregorodtsev, ATsopelas, PTuning, NUbeda Garcia, MUkleja, AUstyuzhanin, AUwer, UVacca, CVagnoni, VValenti, GVallier, AVazquez Gomez, RVazquez Regueiro, PVázquez Sierra, CVecchi, SVelthuis, JVeltri, MVeneziano, GVesterinen, MViaud, BVieira, DVieites Diaz, MVilasis-Cardona, XVollhardt, AVolyanskyy, DVoong, DVorobyev, AVorobyev, VVoss, CVries, JAWaldi, RWallace, CWallace, RWalsh, JWandernoth, SWang, JWard, DWatson, NWebsdale, DWhitehead, MWiedner, DWilkinson, GWilkinson, MWilliams, MWilliams, MWilschut, HWilson, FWimberley, JWishahi, JWislicki, WWitek, MWormser, GWotton, SWright, SWyllie, KXie, YXing, ZXu, ZYang, ZYuan, XYushchenko, OZangoli, MZavertyaev, MZhang, LZhang, WZhang, YZhelezov, AZhokhov, AZhong, L2024-07-182024-07-181029-8479http://akademikarsiv.cbu.edu.tr:4000/handle/123456789/11164A study of B and B-s(0) meson decays into J/psi eta and J/psi eta' final states is performed using a data set of proton-proton collisions at centre-of-mass energies of 7 and 8 TeV, collected by the LCHb experiment and corresponding to 3.0 fb(-1) of integrated luminosity. The decay B-0 -> J/psi eta' is observed for the first time. The following ratios of branching fractions are measured: B(B-0 -> J psi eta')/B(B-s(0) -> J psi eta') = (2.28 +/- 0.65 (stat) +/- 0.010 (syst) +/- 0.13 (f(s)/f(d)) x 10(-2) , B(B-0 -> J psi eta')/B(B-s(0) -> J psi eta') = (1.85 +/- 0.65 (stat) +/- 0.09 (syst) +/- 0.11 (f(s)/f(d)) x 10(-2) where the third uncertainty is related to the present knowledge of f(s)/f(d), the ratio between the probabilities for a b quark to form a B-s(0) or a B-0 meson. The branching fraction ratios are used to determine the parameters of eta-eta' meson mixing. In addition, the first evidence for the decay B-s(0) -> psi(2S)' is reported, and the relative branching fraction is measured, B(B-s(0) -> psi(2S)eta')/B(B-s(0) -> J psi eta') = (38.7 +/- 9.0 (stat) +/- 1.3 (syst) +/- 0.9(B)) x 10(-2), where the third uncertainty is due to the limited knowledge of the branching fractions of J/psi and psi(2S) mesons.EnglishANGLETOOLArticle