Observation of the annihilation decay mode B0→K+K−.

Observation of the annihilation decay mode B0→K+K−.

A search for the B0→K+K− decay is performed using pp-collision data collected by LHCb. The data set corresponds to integrated luminosities of 1.0 and 2.0 fb^−1 at center-of-mass energies of 7 and 8 TeV, respectively. This decay is observed for the first time, with a significance of more than 5 sta...

Full description

Bibliographic Details
Main Authors:	Aaij, R, Adeva, B, Adinolfi, M, Evans, T, Gandini, P, Gruberg Cazon, B, Hadavizadeh, T, Harnew, N, Hill, D, Jalocha, P, John, M, Malde, S, Nandi, A, Rollings, A, Topp-Joergensen, S, Wilkinson, G, LHCb Collaboration
Format:	Journal article
Language:	English
Published:	American Physical Society 2017

Similar Items

Measurement of CP asymmetry in D 0 → K − K + decays
by: Aaij, R, et al.
Published: (2017)

Observation of the decay Ξ−b→pK−K
by: Aaij, R, et al.
Published: (2017)

Measurement of the CP violation parameter AΓ in D0→K+K- and D0→π+π- decays.
by: Aaij, R, et al.
Published: (2017)

Observation of the B+→D∗-K+π+ decay
by: Aaij, R, et al.
Published: (2017)

Search for the suppressed decays B+ → K+K+π- and B+ → π+π+K-
by: Harnew, N, et al.
Published: (2016)

Observation of the Ξb−→J/ψΛK− decay
by: Aaij, R, et al.
Published: (2017)

Resonances and CP violation in B-s(0) and (B)over-bar(s)(0) -> j psi K+K- decays in the mass region above the ϕ (1020)
by: Aaij, R, et al.
Published: (2017)

Measurement of the phase difference between short- and long-distance amplitudes in the B+→K+μ+μ− decay.
by: Aaij, R, et al.
Published: (2017)

Observation of Bc+ → D0K+ decays.
by: Aaij, R, et al.
Published: (2017)

Test of lepton universality with B 0 → K *0 ℓ + ℓ − decays
by: Aaij, R, et al.
Published: (2017)

Observation of Bc+→J/ψD(∗)0K+ decays
by: Aaij, R, et al.
Published: (2017)

Improved limit on the branching fraction of the rare decay $${{K} ^0_{\mathrm { \scriptscriptstyle S}}} \rightarrow \mu ^+\mu ^-$$
by: Aaij, R, et al.
Published: (2017)

Differential branching fraction and angular moments analysis of the decay $B^0 \to K^+ π^- μ^+ μ^-$ in the $K^*_{0,2}(1430)^0$ region
by: Evans, T, et al.
Published: (2016)

Search for long-lived scalar particles in B+→K+χ(μ+μ−) decays
by: Aaij, R, et al.
Published: (2017)

Observation of five new narrow Ω0c states decaying to Ξ+cK−.
by: Aaij, R, et al.
Published: (2017)

Measurement of the ratio of branching fractions and difference in CP asymmetries of the decays B+ → J/ψπ+ and B+ → J/ψK+
by: Aaij, R, et al.
Published: (2017)

Model-independent measurement of the CKM angle $γ$ using $B^0 \to D K^{\ast 0}$ decays with $D \to K_{S}^{0} π^{+} π^{-}$ and $K_{S}^{0} K^{+} K^{-}$
by: LHCb Collaboration, et al.
Published: (2016)

Measurement of the B± production asymmetry and the CP asymmetry in B± → J/ψK± decays
by: Aaij, R, et al.
Published: (2017)

Amplitude analysis of $B^+\to J/ψφK^+$ decays
by: Aaij, R, et al.
Published: (2017)

Observation of the decay Λb0 → pK−μ+μ− and a search for CP violation
by: Aaij, R, et al.
Published: (2017)

Updated branching fraction measurements of B (s) 0 → K S 0 h + h ′ − decays
by: LHCb collaboration, et al.
Published: (2017)

Measurement of the b-Quark production cross section in 7 and 13 TeV pp collisions.
by: Aaij, R, et al.
Published: (2017)

Studies of the resonance structure in D0 → K0S K± π∓ decays
by: Aaij, R, et al.
Published: (2016)

Observation of D0 meson decays to π+π−μ+μ− and K+K−μ+μ− final states
by: Aaij, R, et al.
Published: (2017)

Search for the B-s(0) -> η′ϕ decay
by: Aaij, R, et al.
Published: (2017)

Measurement of matter–antimatter differences in beauty baryon decays
by: Aaij, R, et al.
Published: (2017)

Observation of charmless baryonic decays B0(s)→p¯ph+h'−
by: Aaij, R, et al.
Published: (2017)

Measurement of forward tt, W + bb and W + cc production in pp collisions at √s = 8 TeV
by: Aaij, R, et al.
Published: (2017)

Observation of ηc(2S) →pp¯ and search for X(3872) →pp¯ decays
by: Aaij, R, et al.
Published: (2017)

Measurements of the S-wave fraction in B0 → K+π−μ+μ− decays and the B0 → K∗(892)0μ+μ− differential branching fraction
by: Cheung, S, et al.
Published: (2016)

Measurement of the Difference of Time-Integrated CP Asymmetries in D^{0}→K^{-}K^{+} and D^{0}→π^{-}π^{+} Decays.
by: LHCb collaboration, et al.
Published: (2016)

Measurement of the ratio of branching fractions B(B+c→J/ψK+)/B(B+c→J/ψπ+)
by: Cheung, S, et al.
Published: (2016)

Observations of Λ b 0 → ΛK +π− and Λ b 0 → ΛK + K − decays and searches for other Λ b 0 and Ξ b 0 decays to Λh + h′− final states
by: Aaij, R, et al.
Published: (2016)

First observation of B+ -> D-s(+) K+ K- decays and a search for B+ -> D-s(+) phi decays
by: LHCb Collaboration, et al.
Published: (2018)

Measurement of the J/ψ pair production cross-section in pp collisions at √s = 13 TeV
by: Aaij, R, et al.
Published: (2017)

Measurements of prompt charm production cross-sections in pp collisions at s√=5 TeV
by: Aaij, R, et al.
Published: (2017)

First observation of a baryonic Bs0 decay
by: Aaij, R, et al.
Published: (2017)

Study of charmonium production in b-hadron decays and first evidence for the decay Bs0 → ϕ ϕ ϕ
by: Aaij, R, et al.
Published: (2017)

Observation of the decay Bs0 → ηcϕ and evidence for Bs0 → ηcπ+π−
by: Aaij, R, et al.
Published: (2017)

Measurement of CP asymmetries in D± → η′π± and D±s → η′π± decays
by: Aaij, R, et al.
Published: (2017)