Abstract
The B+ → Jψη′K+ decay is observed for the first time using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of 9 fb−1. The branching fraction of this decay is measured relative to the known branching fraction of the B+ → ψ(2S)K+ decay and found to be
where the first uncertainty is statistical, the second is systematic and the third is related to external branching fractions. A first look at the J/ψη′ mass distribution is performed and no signal of intermediate resonances is observed.
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References
Belle collaboration, Observation of a narrow charmonium-like state in exclusive B± → K±π+π−J/ψ decays, Phys. Rev. Lett. 91 (2003) 262001 [hep-ex/0309032] [INSPIRE].
LHCb collaboration, Observation of J/ψp resonances consistent with pentaquark states in \( {\Lambda}_b^0\to J/\psi {K}^{-}p \) decays, Phys. Rev. Lett. 115 (2015) 072001 [LHCb-PAPER-2015-029, CERN-PH-EP-2015-153] [arXiv:1507.03414] [INSPIRE].
LHCb collaboration, Model-independent evidence for J/ψp contributions to \( {\Lambda}_b^0\to J/\psi p{K}^{-} \) decays, Phys. Rev. Lett. 117 (2016) 082002 [LHCb-PAPER-2016-009, CERN-EP-2016-086] [arXiv:1604.05708] [INSPIRE].
LHCb collaboration, Observation of a narrow pentaquark state, Pc(4312)+, and of two-peak structure of the Pc(4450)+, Phys. Rev. Lett. 122 (2019) 222001 [LHCb-PAPER-2019-014, CERN-EP-2019-058] [arXiv:1904.03947] [INSPIRE].
LHCb collaboration, Evidence for exotic hadron contributions to \( {\Lambda}_b^0\to J/\psi p{\pi}^{-} \) decays, Phys. Rev. Lett. 117 (2016) 082003 [Addendum ibid. 117 (2016) 109902] [LHCb-PAPER-2016-015, CERN-EP-2016-151] [arXiv:1606.06999] [INSPIRE].
LHCb collaboration, Evidence for a new structure in the J/ψp and \( J/\psi \overline{p} \) systems in \( {B}_s^0\to J/\psi p\overline{p} \) decays, Phys. Rev. Lett. 128 (2022) 062001 [LHCb-PAPER-2021-018, CERN-EP-2021-150] [arXiv:2108.04720] [INSPIRE].
LHCb collaboration, Evidence of a J/ψΛ structure and observation of excited Ξ− states in the \( {\Xi}_b^{-}\to J/\psi \Lambda {K}^{-} \) decay, Sci. Bull. 66 (2021) 1278 [LHCb-PAPER-2020-039, CERN-EP-2020-233] [arXiv:2012.10380] [INSPIRE].
Belle collaboration, Observation of a resonance-like structure in the π±ψ′ mass distribution in exclusive B → Kπ±ψ′ decays, Phys. Rev. Lett. 100 (2008) 142001 [arXiv:0708.1790] [INSPIRE].
Belle collaboration, Dalitz analysis of B → Kπ+ψ′ decays and the Z(4430)+, Phys. Rev. D 80 (2009) 031104 [arXiv:0905.2869] [INSPIRE].
Belle collaboration, Experimental constraints on the spin and parity of the Z(4430)+, Phys. Rev. D 88 (2013) 074026 [arXiv:1306.4894] [INSPIRE].
LHCb collaboration, Observation of the resonant character of the Z(4430)− state, Phys. Rev. Lett. 112 (2014) 222002 [LHCb-PAPER-2014-014, CERN-PH-EP-2014-061] [arXiv:1404.1903] [INSPIRE].
LHCb collaboration, Model-independent confirmation of the Z(4430)− state, Phys. Rev. D 92 (2015) 112009 [LHCb-PAPER-2015-038, CERN-PH-EP-2015-244] [arXiv:1510.01951] [INSPIRE].
LHCb collaboration, Observation of J/ψϕ structures consistent with exotic states from amplitude analysis of B+ → J/ψϕK+ decays, Phys. Rev. Lett. 118 (2017) 022003 [LHCb-PAPER-2016-018, CERN-EP-2016-155] [arXiv:1606.07895] [INSPIRE].
LHCb collaboration, Amplitude analysis of B+ → J/ψϕK+ decays, Phys. Rev. D 95 (2017) 012002 [LHCb-PAPER-2016-019, CERN-EP-2016-156] [arXiv:1606.07898] [INSPIRE].
LHCb collaboration, Study of \( {B}_s^0\to J\psi {\pi}^{+}{\pi}^{-}{K}^{+}{K}^{-} \) decays, JHEP 02 (2021) 024 [LHCb-PAPER-2020-035, CERN-EP-2020-192] [Erratum ibid. 04 (2021) 170] [arXiv:2011.01867] [INSPIRE].
LHCb collaboration, Observation of new resonances decaying to J/ψK+ and J/ψϕ, Phys. Rev. Lett. 127 (2021) 082001 [LHCb-PAPER-2020-044, CERN-EP-2021-025] [arXiv:2103.01803] [INSPIRE].
LHCb collaboration, Evidence of a \( J/\psi {K}_S^0 \) structure in \( {B}^0\to J/\psi \phi {K}_S^0 \) decays, arXiv:2301.04899 [LHCb-PAPER-2022-040, CERN-EP-2022-258] [INSPIRE].
LHCb collaboration, Evidence for an ηc(1S)π− resonance in B0 → ηc(1S)K+π− decays, Eur. Phys. J. C 78 (2018) 1019 [LHCb-PAPER-2018-034, CERN-EP-2018-245] [arXiv:1809.07416] [INSPIRE].
LHCb collaboration, Model-independent observation of exotic contributions to B0 → J/ψK+π− decays, Phys. Rev. Lett. 122 (2019) 152002 [LHCb-PAPER-2018-043, CERN-EP-2018-330] [arXiv:1901.05745] [INSPIRE].
LHCb collaboration, Observation of \( {B}_s^0\to {\chi}_{c1}\phi \) decay and study of B0 → χc1,2K*0 decays, Nucl. Phys. B 874 (2013) 663 [LHCb-PAPER-2013-024, CERN-PH-EP-2013-088] [arXiv:1305.6511] [INSPIRE].
LHCb collaboration, Evidence for the decay X(3872) → ψ(2S)γ, Nucl. Phys. B 886 (2014) 665 [LHCb-PAPER-2014-008, CERN-PH-EP-2014-050] [arXiv:1404.0275] [INSPIRE].
LHCb collaboration, Observation of the decays \( {\Lambda}_b^0\to {\chi}_{c1}p{K}^{-} \) and \( {\Lambda}_b^0\to {\chi}_{c2}p{K}^{-} \), Phys. Rev. Lett. 119 (2017) 062001 [LHCb-PAPER-2017-011, CERN-EP-2017-073] [arXiv:1704.07900] [INSPIRE].
LHCb collaboration, Observation of the decay \( {\Lambda}_b^0\to {\chi}_{c1}p{\pi}^{-} \), JHEP 05 (2021) 095 [LHCb-PAPER-2021-003, CERN-EP-2021-037] [arXiv:2103.04949] [INSPIRE].
LHCb collaboration, Determination of the X(3872) meson quantum numbers, Phys. Rev. Lett. 110 (2013) 222001 [LHCb-PAPER-2013-001, CERN-PH-EP-2013-017] [arXiv:1302.6269] [INSPIRE].
LHCb collaboration, Quantum numbers of the X(3872) state and orbital angular momentum in its ρ0J/ψ decay, Phys. Rev. D 92 (2015) 011102 [LHCb-PAPER-2015-015, CERN-PH-EP-2015-098] [arXiv:1504.06339] [INSPIRE].
LHCb collaboration, Study of the ψ2(3823) and χc1(3872) states in B+ → (Jψπ+π−)K+ decays, JHEP 08 (2020) 123 [LHCb-PAPER-2020-009, CERN-EP-2020-071] [arXiv:2005.13422] [INSPIRE].
LHCb collaboration, Observation of sizeable ω contribution to χc1(3872) → π+π−J/ψ decays, Phys. Rev. D 108 (2023) L011103 [LHCb-PAPER-2021-045] [arXiv:2204.12597] [INSPIRE].
BaBar collaboration, Evidence for the decay X(3872) → J/ψω, Phys. Rev. D 82 (2010) 011101 [arXiv:1005.5190] [INSPIRE].
LHCb collaboration, Study of charmonium and charmonium-like contributions in B+ → J/ψηK+ decays, JHEP 04 (2022) 046 [LHCb-PAPER-2021-047, CERN-EP-2022-009] [arXiv:2202.04045] [INSPIRE].
Belle collaboration, Observation of ψ(4040) and ψ(4160) decay into ηJ/ψ, Phys. Rev. D 87 (2013) 051101 [arXiv:1210.7550] [INSPIRE].
BESIII collaboration, Observation of the Y(4220) and Y(4360) in the process e+e− → ηJ/ψ, Phys. Rev. D 102 (2020) 031101 [arXiv:2003.03705] [INSPIRE].
N. Brambilla et al., The XYZ states: experimental and theoretical status and perspectives, Phys. Rept. 873 (2020) 1 [arXiv:1907.07583] [INSPIRE].
A. Ali, L. Maiani and A.D. Polosa, Multiquark hadrons, Cambridge University Press (2019) [https://doi.org/10.1017/9781316761465] [INSPIRE].
L. Maiani and A. Pilloni, GGI Lectures on exotic hadrons, arXiv:2207.05141 [INSPIRE].
N. Brambilla et al., Substructure of multiquark hadrons (Snowmass 2021 White Paper), arXiv:2203.16583 [INSPIRE].
N. Brambilla et al., Heavy Quarkonium: progress, puzzles, and opportunities, Eur. Phys. J. C 71 (2011) 1534 [arXiv:1010.5827] [INSPIRE].
Particle Data Group collaboration, Review of particle physics, PTEP 2022 (2022) 083C01 [INSPIRE].
J.L. Rosner, Quark content of neutral mesons, Phys. Rev. D 27 (1983) 1101 [INSPIRE].
A. Bramon, R. Escribano and M.D. Scadron, The η − η′ mixing angle revisited, Eur. Phys. J. C 7 (1999) 271 [hep-ph/9711229] [INSPIRE].
A. Bramon, R. Escribano and M.D. Scadron, Mixing of η − η′ mesons in J/ψ decays into a vector and a pseudoscalar meson, Phys. Lett. B 403 (1997) 339 [hep-ph/9703313] [INSPIRE].
V.A. Novikov, M.A. Shifman, A.I. Vainshtein and V.I. Zakharov, A theory of the J/ψ → η(η′)γ decays, Nucl. Phys. B 165 (1980) 55 [INSPIRE].
V.A. Novikov, M.A. Shifman, A.I. Vainshtein and V.I. Zakharov, η′ meson as pseudoscalar gluonium, Phys. Lett. B 86 (1979) 347 [INSPIRE].
V.A. Novikov, M.A. Shifman, A.I. Vainshtein and V.I. Zakharov, In a search for scalar gluonium, Nucl. Phys. B 165 (1980) 67 [INSPIRE].
A.L. Kataev, N.V. Krasnikov and A.A. Pivovarov, The connection between the scales of the gluon and quark worlds in perturbative QCD, Phys. Lett. B 107 (1981) 115 [INSPIRE].
A.L. Kataev, N.V. Krasnikov and A.A. Pivovarov, Two loop calculations for the propagators of gluonic currents, Nucl. Phys. B 198 (1982) 508 [hep-ph/9612326] [INSPIRE].
C.E. Thomas, Composition of the pseudoscalar η and η′ mesons, JHEP 10 (2007) 026 [arXiv:0705.1500] [INSPIRE].
R. Escribano and J. Nadal, On the gluon content of the η and η′ mesons, JHEP 05 (2007) 006 [hep-ph/0703187] [INSPIRE].
R. Escribano, J/ψ → VP decays and the quark and gluon content of the eta and eta-prime, Eur. Phys. J. C 65 (2010) 467 [arXiv:0807.4201] [INSPIRE].
F. Ambrosino et al., A Global fit to determine the pseudoscalar mixing angle and the gluonium content of the eta-prime meson, JHEP 07 (2009) 105 [arXiv:0906.3819] [INSPIRE].
CLEO collaboration, Absolute branching fraction measurements for exclusive Ds semileptonic decays, Phys. Rev. D 80 (2009) 052007 [arXiv:0903.0601] [INSPIRE].
CLEO collaboration, Studies of D+ → η′, η, ϕe+νe, Phys. Rev. D 84 (2011) 032001 [arXiv:1011.1195] [INSPIRE].
C. Di Donato, G. Ricciardi and I. Bigi, η − η′ mixing — from electromagnetic transitions to weak decays of charm and beauty hadrons, Phys. Rev. D 85 (2012) 013016 [arXiv:1105.3557] [INSPIRE].
LHCb collaboration, Study of η − η′ mixing from measurement of \( {B}_{(s)}^0\to J/\psi {\eta}^{\left(\prime \right)} \) decay rates, JHEP 01 (2015) 024 [LHCb-PAPER-2014-056, CERN-PH-EP-2014-266] [arXiv:1411.0943] [INSPIRE].
M.A. Andreichikov, M.I. Vysotsky and V.A. Novikov, On the branching ratios of the B0 → J/ψη (η′, π0) and Bs → J/ψη(η′) decays, Pisma Zh. Eksp. Teor. Fiz. 110 (2019) 633 [INSPIRE].
M.A. Andreichikov, M.I. Eides, V.A. Novikov and M.I. Vysotsky, The physics of the η–η′ system versus B0 → J/ψη(η′) and Bs → J/ψη(η′) decays, Int. J. Mod. Phys. A 35 (2020) 2050111 [arXiv:1911.10596] [INSPIRE].
F.E. Close et al., Gluonic hadrons and charmless B decays, Phys. Rev. D 57 (1998) 5653 [hep-ph/9708265] [INSPIRE].
F.E. Close and P.R. Page, Gluonic charmonium resonances at BaBar and BELLE?, Phys. Lett. B 628 (2005) 215 [hep-ph/0507199] [INSPIRE].
Belle collaboration, Search for B+ → J/ψη′K+ and \( {B}^0\to J/{\psi \eta}^{\prime }{K}_{\textrm{S}}^0 \) decays, Phys. Rev. D 75 (2007) 017101 [hep-ex/0610084] [INSPIRE].
LHCb collaboration, The LHCb detector at the LHC, 2008 JINST 3 S08005 [INSPIRE].
LHCb collaboration, LHCb Detector Performance, Int. J. Mod. Phys. A 30 (2015) 1530022 [LHCB-DP-2014-002, CERN-PH-EP-2014-290] [arXiv:1412.6352] [INSPIRE].
R. Aaij et al., Performance of the LHCb Vertex Locator, 2014 JINST 9 P09007 [LHCB-DP-2014-001] [arXiv:1405.7808] [INSPIRE].
R. Arink et al., Performance of the LHCb Outer Tracker, 2014 JINST 9 P01002 [arXiv:1311.3893] [INSPIRE].
P. d’Argent et al., Improved performance of the LHCb Outer Tracker in LHC Run 2, 2017 JINST 12 P11016 [arXiv:1708.00819] [INSPIRE].
M. Adinolfi et al., Performance of the LHCb RICH detector at the LHC, Eur. Phys. J. C 73 (2013) 2431 [arXiv:1211.6759] [INSPIRE].
A.A. Alves Jr. et al., Performance of the LHCb muon system, 2013 JINST 8 P02022 [arXiv:1211.1346] [INSPIRE].
R. Aaij et al., The LHCb trigger and its performance in 2011, 2013 JINST 8 P04022 [arXiv:1211.3055] [INSPIRE].
LHCb collaboration, Design and performance of the LHCb trigger and full real-time reconstruction in Run 2 of the LHC, 2019 JINST 14 P04013 [arXiv:1812.10790] [INSPIRE].
T. Sjostrand, S. Mrenna and P.Z. Skands, A brief introduction to PYTHIA 8.1, Comput. Phys. Commun. 178 (2008) 852 [arXiv:0710.3820] [INSPIRE].
LHCb collaboration, Handling of the generation of primary events in Gauss, the LHCb simulation framework, J. Phys. Conf. Ser. 331 (2011) 032047 [INSPIRE].
D.J. Lange, The EvtGen particle decay simulation package, Nucl. Instrum. Meth. A 462 (2001) 152 [INSPIRE].
N. Davidson, T. Przedzinski and Z. Was, PHOTOS interface in C++: technical and physics documentation, Comput. Phys. Commun. 199 (2016) 86 [arXiv:1011.0937] [INSPIRE].
J. Allison et al., Geant4 developments and applications, IEEE Trans. Nucl. Sci. 53 (2006) 270 [INSPIRE].
GEANT4 collaboration, GEANT4: a simulation toolkit, Nucl. Instrum. Meth. A 506 (2003) 250 [INSPIRE].
LHCb collaboration, The LHCb simulation application, Gauss: Design, evolution and experience, J. Phys. Conf. Ser. 331 (2011) 032023 [INSPIRE].
A. Rogozhnikov, Reweighting with Boosted Decision Trees, J. Phys. Conf. Ser. 762 (2016) 012036 [arXiv:1608.05806] [INSPIRE].
R. Aaij et al., Selection and processing of calibration samples to measure the particle identification performance of the LHCb experiment in Run 2, EPJ Tech. Instrum. 6 (2019) 1 [arXiv:1803.00824] [INSPIRE].
LHCb collaboration, Measurement of the track reconstruction efficiency at LHCb, 2015 JINST 10 P02007 [CERN-LHCB-DP-2013-002] [arXiv:1408.1251] [INSPIRE].
LHCb collaboration, Evidence for the decay B0 → J/ψω and measurement of the relative branching fractions of \( {B}_s^0 \) meson decays to J/ψη and J/ψη′, Nucl. Phys. B 867 (2013) 547 [LHCb-PAPER-2012-022, CERN-PH-EP-2012-287] [arXiv:1210.2631] [INSPIRE].
LHCb collaboration, Observations of \( {B}_s^0\to \psi (2S)\eta \) and \( {B}_{(s)}^0\to \psi (2S){\pi}^{+}{\pi}^{-} \) decays, Nucl. Phys. B 871 (2013) 403 [LHCb-PAPER-2012-053, CERN-PH-EP-2013-024] [arXiv:1302.6354] [INSPIRE].
E. Govorkova, Study of π0/γ efficiency using B meson decays in the LHCb experiment, Phys. Atom. Nucl. 79 (2016) 1474 [arXiv:1505.02960] [INSPIRE].
K. Govorkova, Study of photons and neutral pions reconstruction efficiency in the LHCb experiment, CERN-THESIS-2015-272.
A. Powell et al., Particle identification at LHCb, PoS ICHEP2010 (2010) 020 [LHCb-PROC-2011-008].
H. Terrier and I. Belyaev, Particle identification with LHCb calorimeters, LHCb-2003-092.
C. Abellán Beteta et al., Calibration and performance of the LHCb calorimeters in Run 1 and 2 at the LHC, arXiv:2008.11556 [INSPIRE].
TASSO collaboration, Measurement of the radiative width of the η′(958) in two photon interactions, Phys. Lett. B 147 (1984) 487 [INSPIRE].
H. Kolanoski, Two-photon physics at e+e− storage rings, vol. 105, Berlin, Springer-Verlag (1984) [https://doi.org/10.1007/BFb0045900] [INSPIRE].
ARGUS collaboration, Observation of the Decay \( {D}_s^{+}\to {\eta}^{\prime }{\pi}^{+} \), Phys. Lett. B 245 (1990) 315 [INSPIRE].
CLEO collaboration, Two-body \( {D}_s^{+} \) decays to ηπ+, η′π+, ηρ+, η′ρ+ and ϕρ+, Phys. Rev. D 45 (1992) 3965 [INSPIRE].
CLEO collaboration, \( {D}_s^{+} \) decays to ηπ+ and η′π+, Phys. Rev. Lett. 68 (1992) 1275 [INSPIRE].
BESIII collaboration, Precision study of η′ → γπ+π− decay dynamics, Phys. Rev. Lett. 120 (2018) 242003 [arXiv:1712.01525] [INSPIRE].
W.D. Hulsbergen, Decay chain fitting with a Kalman filter, Nucl. Instrum. Meth. A 552 (2005) 566 [physics/0503191] [INSPIRE].
W.S. McCulloch and W. Pitts, A logical calculus of the ideas immanent in nervous activity, The Bulletin of Mathematical Biophysics 5 (1943) 115.
F. Rosenblatt, The perceptron: a probabilistic model for information storage and organization in the brain, Psychological Review 65 (1958) 386.
J.-H. Zhong et al., A program for the Bayesian neural network in the ROOT framework, Comput. Phys. Commun. 182 (2011) 2655 [arXiv:1103.2854] [INSPIRE].
T. Skwarnicki, A study of the radiative CASCADE transitions between the Upsilon-Prime and Upsilon resonances, Ph.D. thesis, Institute of Nuclear Physics, Krakow (1986) [INSPIRE].
LHCb collaboration, Observation of J/ψ pair production in pp collisions at \( \sqrt{s} \) = 7TeV , Phys. Lett. B 707 (2012) 52 [LHCb-PAPER-2011-013, CERN-PH-EP-2011-135] [arXiv:1109.0963] [INSPIRE].
S. Karlin and L.S. Shapley, Geometry of moment spaces, vol. 12 of Memoirs of the American Mathematical Society, American Mathematical Society, Providence, Rhode Island (1953).
LHCb collaboration, Study of \( {\textrm{B}}_{\textrm{c}}^{+} \) decays to charmonia and three light hadrons, JHEP 01 (2022) 065 [LHCb-PAPER-2021-034, CERN-EP-2021-216] [arXiv:2111.03001] [INSPIRE].
LHCb collaboration, Study of \( {B}_c^{+} \) meson decays to charmonia plus multihadron final states, arXiv:2208.08660 [LHCb-PAPER-2022-025, CERN-EP-2022-162] [INSPIRE].
S.S. Wilks, The large-sample distribution of the likelihood ratio for testing composite hypotheses, Annals Math. Statist. 9 (1938) 60 [INSPIRE].
M. Pivk and F.R. Le Diberder, SPlot: a statistical tool to unfold data distributions, Nucl. Instrum. Meth. A 555 (2005) 356 [physics/0402083] [INSPIRE].
E. Byckling and K. Kajantie, Particle kinematics, John Wiley & Sons Inc., New York (1973).
LHCb collaboration, Study of the lineshape of the χc1(3872) state, Phys. Rev. D 102 (2020) 092005 [LHCb-PAPER-2020-008,CERN-EP-2020-086] [arXiv:2005.13419] [INSPIRE].
LHCb collaboration, Observation of the \( {B}_s^0\to {\chi}_{c1}(3872){\pi}^{+}{\pi}^{-} \) decay, arXiv:2302.10629 [INSPIRE].
B. Efron, Bootstrap methods: another look at the Jackknife, Annals Statist. 7 (1979) 1 [INSPIRE].
B. Efron and R.J. Tibshirani, An introduction to the bootstrap, Chapman and Hall, New York (1994) [https://doi.org/10.1201/9780429246593].
A. Poluektov, Kernel density estimation of a multidimensional efficiency profile, 2015 JINST 10 P02011 [arXiv:1411.5528] [INSPIRE].
LHCb collaboration, Measurement of relative branching fractions of B decays to ψ(2S) and J/ψ mesons, Eur. Phys. J. C 72 (2012) 2118 [LHCb-PAPER-2012-010, CERN-PH-EP-2012-113] [arXiv:1205.0918] [INSPIRE].
D. Martínez Santos and F. Dupertuis, Mass distributions marginalized over per-event errors, Nucl. Instrum. Meth. A 764 (2014) 150 [arXiv:1312.5000] [INSPIRE].
Student, The probable error of a mean, Biometrika 6 (1908) 1.
S. Jackman, Bayesian analysis for the social sciences, John Wiley & Sons, Inc., Hoboken, New Jersey, U.S.A. (2009).
BaBar collaboration, Branching fraction measurements of the color-suppressed decays \( {\overline{B}}^0\to {D}^{\left(\ast \right)0}{\pi}^0,{D}^{\left(\ast \right)0}\eta, {D}^{\left(\ast \right)0}\omega \), and D(∗)0η′ and measurement of the polarization in the decay \( {\overline{B}}^0\to {D}^{\ast 0}\omega \), Phys. Rev. D 84 (2011) 112007 [Erratum ibid. 87 (2013) 039901] [arXiv:1107.5751] [INSPIRE].
Acknowledgments
We express our gratitude to our colleagues in the CERN accelerator departments for the excellent performance of the LHC. We thank the technical and administrative staff at the LHCb institutes. We acknowledge support from CERN and from the national agencies: CAPES, CNPq, FAPERJ and FINEP (Brazil); MOST and NSFC (China); CNRS/IN2P3 (France); BMBF, DFG and MPG (Germany); INFN (Italy); NWO (Netherlands); MNiSW and NCN (Poland); MEN/IFA (Romania); MICINN (Spain); SNSF and SER (Switzerland); NASU (Ukraine); STFC (United Kingdom); DOE NP and NSF (USA). We acknowledge the computing resources that are provided by CERN, IN2P3 (France), KIT and DESY (Germany), INFN (Italy), SURF (Netherlands), PIC (Spain), GridPP (United Kingdom), CSCS (Switzerland), IFIN-HH (Romania), CBPF (Brazil), Polish WLCG (Poland) and NERSC (USA). We are indebted to the communities behind the multiple open-source software packages on which we depend. Individual groups or members have received support from ARC and ARDC (Australia); Minciencias (Colombia); AvH Foundation (Germany); EPLANET, Marie Skłodowska-Curie Actions and ERC (European Union); A*MIDEX, ANR, IPhU and Labex P2IO, and Région Auvergne-Rhône-Alpes (France); Key Research Program of Frontier Sciences of CAS, CAS PIFI, CAS CCEPP, Fundamental Research Funds for the Central Universities, and Sci. & Tech. Program of Guangzhou (China); GVA, XuntaGal, GENCAT and Prog. Atracción Talento, CM (Spain); SRC (Sweden); the Leverhulme Trust, the Royal Society and UKRI (United Kingdom).
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ArXiv ePrint: 2303.09443
A. Andreianov, A. Artamonov, F. Baryshnikov, K. Belous, I. Belov, I. Belyaev, A. Berezhnoy, V. Bocharnikov, A. Boldyrev, N. Bondar, A. Butkevich, A. Chubykin, V. Chulikov, S. Dadabaev, A. Danilina, I. Diachkov, S. Didenko, A. Dolmatov, A. Dzyuba, A. Egorychev, V. Egorychev, S. Filippov, D. Golubkov, A. Golutvin, I. V. Gorelov, S. Gromov, A.-K. Guseinov, E. Gushchin, Y. Guz, M. Hushchyn, D. Ilin, A. Inglessi, A. Iniukhin, A. Ishteev, K. Ivshin, D. Karpenkov, M. Karpov, A. Kharisova, S. Kholodenko, A. Kondybayeva, A. Konoplyannikov, M. Korolev, A. Kozachuk, P. Kravchenko, L. Kravchuk, P. Krokovny, V. Kudryavtsev, E. Kulikova, O. Lantwin, A. Leflat, S. Legotin, S. Luchuk, A. Maevskiy, D. Maisuzenko, A. Malinin, T. Maltsev, V. Matiunin, S. Mokhnenko, P. Neustroev, N. Nikitin, V. Obraztsov, T. Ovsiannikova, G. Panshin, D. Pereima, A. Philippov, N. Polukhina, S. Poslavskii, F. Ratnikov, V. Romanovskiy, A. Ryzhikov, N. Sagidova, D. Saranin, D. Savrina, A. Semennikov, M. Shapkin, I. Shchemerov, L. Shekhtman, V. Shevchenko, E. Shmanin, R. Shorkin, A. Solomin, A. Solovev, I. Solovyev, E. Spiridenkov, O. Stenyakin, D. Strekalina, A. Ustyuzhanin, V. Vorobyev, N. Voropaev, A. Zharkova and V. Zhukov are affiliated with an institute covered by a cooperation agreement with CERN
U. Egede, T. Hadavizadeh, R. D. L. Henderson, M. Monk, M. Singla, R. Song, E. J. Walton and J. A. Ward are associated to Department of Physics, University of Warwick, Coventry, United Kingdom
C. Göbel is associated to Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
L. Dai, J. Yu and S. Zhang are associated to Institute of Particle Physics, Central China Normal University, Wuhan, Hubei, China
A. Bursche, J. Hu, H. Li, T. Li, G. Liu, X. Wang, L. Bian, H. Cai, B. Fang, X. Huang, L. Sun and J. Wang are associated to Center for High Energy Physics, Tsinghua University, Beijing, China
P.-R. Li and K. Liu are associated to Institute Of High Energy Physics (IHEP), Beijing, China
D. A. Milanes, I. A. Monroy and J. A. Rodriguez Lopez are associated to LPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, Paris, France
J. P. Grabowski, M. Mikhasenko, S. Neubert, K. O. Padeken and M. Sarpis are associated to Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
B. Dey and A. M. Schertz are associated to European Organization for Nuclear Research (CERN), Geneva, Switzerland
V. Duk, L. Fantini, R. Lollini, G. Martelli and M. Piccini are associated to INFN Sezione di Ferrara, Ferrara, Italy
K. De Bruyn, M. Mulder, C. J. G. Onderwater, C. S. Bolognani, D. H. Campora Perez, J. A. de Vries, M. Lucio Martinez, M. Merk, D. Nicotra, C. J. Pawley and K. Vos are associated to Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands
P. Duda, M. M. Duras, L. Felkowski and S. Kubis are associated to Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland
P. Adlarson, L. Eklund and A. Kupsc are associated to School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
C. A. Aidala, I. Chahrour, D. S. Fitzgerald, S. H. Lee, C. Nunez and D. M. Shangase are associated to Syracuse University, Syracuse, NY, United States
Deceased (A. Gomes and M.-N. Minard)
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The LHCb collaboration., Aaij, R., Abdelmotteleb, A.S.W. et al. Observation of the B+ → Jψη′K+ decay. J. High Energ. Phys. 2023, 174 (2023). https://doi.org/10.1007/JHEP08(2023)174
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DOI: https://doi.org/10.1007/JHEP08(2023)174