Abstract
We present B q → ρ, B q → ω, B q → K ∗, B s → K ∗ and B s → ϕ form factors from light-cone sum rules (LCSR) at \( \mathcal{O}\left({\alpha}_s\right) \) for twist-2 and 3 and \( \mathcal{O}\left({\alpha}_s^0\right) \) for twist-4 with updated hadronic input parameters. Three asymptotic light-cone distribution amplitudes of twist-4 (and 5) are determined, necessary for the form factors to obey the equations of motion. It is argued that the latter constrain the uncertainty of tensor-to-vector form factor ratios thereby improving the prediction of zeros of helicity amplitudes of major importance for B → K ∗ℓℓ angular observables. We provide easy-to-use fits to the LCSR results, including the full error correlation matrix, in all modes at low q 2 as well as combined fits to LCSR and lattice results covering the entire kinematic range for B q → K ∗, B s → K ∗ and B s → ϕ. The error correlation matrix avoids the problem of overestimating the uncertainty in phenomenological applications. Using the new form factors and recent computations of non-factorisable contributions we provide Standard Model predictions for B → K ∗γ as well as B → K ∗ℓ+ℓ− and B s → ϕμ + μ − at low dilepton invariant mass. Employing our B → (ρ,ω) form factor results we extract the CKM element |V ub| from the semileptonic decays B → (ρ, ω)ℓν and find good agreement with other exclusive determinations.
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T. Blake, G. Lanfranchi and D.M. Straub, Rare B decays as tests of the standard model, arXiv:1606.00916 [INSPIRE].
P. Ball and R. Zwicky, B d,s → ρ, ω, K ∗ , ϕ decay form-factors from light-cone sum rules revisited, Phys. Rev. D 71 (2005) 014029 [hep-ph/0412079] [INSPIRE].
I. Sentitemsu Imsong, A. Khodjamirian, T. Mannel and D. van Dyk, Extrapolation and unitarity bounds for the B → π form factor, JHEP 02 (2015) 126 [arXiv:1409.7816] [INSPIRE].
C. Hambrock, G. Hiller, S. Schacht and R. Zwicky, B → K ∗ form factors from flavor data to QCD and back, Phys. Rev. D 89 (2014) 074014 [arXiv:1308.4379] [INSPIRE].
J. Charles, A. Le Yaouanc, L. Oliver, O. Pène and J.-C. Raynal, Heavy to light form-factors in the heavy mass to large energy limit of QCD, Phys. Rev. D 60 (1999) 014001 [hep-ph/9812358] [INSPIRE].
M. Beneke and T. Feldmann, Symmetry breaking corrections to heavy to light B meson form-factors at large recoil, Nucl. Phys. B 592 (2001) 3 [hep-ph/0008255] [INSPIRE].
S. Descotes-Genon, L. Hofer, J. Matias and J. Virto, On the impact of power corrections in the prediction of B → K ∗ μ + μ − observables, JHEP 12 (2014) 125 [arXiv:1407.8526] [INSPIRE].
S. Jäger and J. Martin Camalich, Reassessing the discovery potential of the B → K ∗ ℓ + ℓ − decays in the large-recoil region: SM challenges and BSM opportunities, Phys. Rev. D 93 (2016) 014028 [arXiv:1412.3183] [INSPIRE].
S. Descotes-Genon, T. Hurth, J. Matias and J. Virto, Optimizing the basis of B → K ∗ ℓ + ℓ − observables in the full kinematic range, JHEP 05 (2013) 137 [arXiv:1303.5794] [INSPIRE].
R.R. Horgan, Z. Liu, S. Meinel and M. Wingate, Lattice QCD calculation of form factors describing the rare decays B → K ∗ ℓ + ℓ − and B s → ϕℓ + ℓ −, Phys. Rev. D 89 (2014) 094501 [arXiv:1310.3722] [INSPIRE].
R.R. Horgan, Z. Liu, S. Meinel and M. Wingate, Rare B decays using lattice QCD form factors, PoS(LATTICE2014)372 [arXiv:1501.00367] [INSPIRE].
J. Lyon and R. Zwicky, Isospin asymmetries in B → (K ∗ , ρ)γ/l + l − and B → Kl + l − in and beyond the standard model, Phys. Rev. D 88 (2013) 094004 [arXiv:1305.4797] [INSPIRE].
M.A. Shifman, A.I. Vainshtein and V.I. Zakharov, QCD and resonance physics. Theoretical foundations, Nucl. Phys. B 147 (1979) 385 [INSPIRE].
M.A. Shifman, A.I. Vainshtein and V.I. Zakharov, QCD and resonance physics. Applications, Nucl. Phys. B 147 (1979) 448 [INSPIRE].
I.I. Balitsky, V.M. Braun and A.V. Kolesnichenko, Radiative decay σ + → pγ in quantum chromodynamics, Nucl. Phys. B 312 (1989) 509 [INSPIRE].
V.L. Chernyak and I.R. Zhitnitsky, B meson exclusive decays into baryons, Nucl. Phys. B 345 (1990) 137 [INSPIRE].
M.A. Shifman, A.I. Vainshtein and V.I. Zakharov, QCD and resonance physics. The ρ-ω mixing, Nucl. Phys. B 147 (1979) 519 [INSPIRE].
P. Ball and R. Zwicky, Improved analysis of B → πeν from QCD sum rules on the light cone, JHEP 10 (2001) 019 [hep-ph/0110115] [INSPIRE].
P. Ball and R. Zwicky, New results on B → π, K, η decay form factors from light-cone sum rules, Phys. Rev. D 71 (2005) 014015 [hep-ph/0406232] [INSPIRE].
G. Duplancić, A. Khodjamirian, T. Mannel, B. Melić and N. Offen, Light-cone sum rules for B → π form factors revisited, JHEP 04 (2008) 014 [arXiv:0801.1796] [INSPIRE].
P. Ball and V.M. Braun, Exclusive semileptonic and rare B meson decays in QCD, Phys. Rev. D 58 (1998) 094016 [hep-ph/9805422] [INSPIRE].
A. Khodjamirian, T. Mannel and N. Offen, Form-factors from light-cone sum rules with B-meson distribution amplitudes, Phys. Rev. D 75 (2007) 054013 [hep-ph/0611193] [INSPIRE].
F. De Fazio, T. Feldmann and T. Hurth, SCET sum rules for B → P and B → V transition form factors, JHEP 02 (2008) 031 [arXiv:0711.3999] [INSPIRE].
B. Grinstein and D. Pirjol, Exclusive rare B → K ∗ ℓ + ℓ − decays at low recoil: controlling the long-distance effects, Phys. Rev. D 70 (2004) 114005 [hep-ph/0404250] [INSPIRE].
N. Isgur and M.B. Wise, Relationship between form-factors in semileptonic \( \overline{B} \) and D decays and exclusive rare \( \overline{B} \) meson decays, Phys. Rev. D 42 (1990) 2388 [INSPIRE].
W. Altmannshofer et al., Symmetries and asymmetries of B → K ∗ μ + μ − decays in the standard model and beyond, JHEP 01 (2009) 019 [arXiv:0811.1214] [INSPIRE].
C.W. Bauer, S. Fleming, D. Pirjol and I.W. Stewart, An effective field theory for collinear and soft gluons: heavy to light decays, Phys. Rev. D 63 (2001) 114020 [hep-ph/0011336] [INSPIRE].
M. Beneke and D. Yang, Heavy-to-light B meson form-factors at large recoil energy: spectator-scattering corrections, Nucl. Phys. B 736 (2006) 34 [hep-ph/0508250] [INSPIRE].
G. Bell, M. Beneke, T. Huber and X.-Q. Li, Heavy-to-light currents at NNLO in SCET and semi-inclusive \( \overline{B}\to {X}_s{\ell}^{+}{\ell}^{-} \) decay, Nucl. Phys. B 843 (2011) 143 [arXiv:1007.3758] [INSPIRE].
A. Ali, V.M. Braun and H. Simma, Exclusive radiative B decays in the light cone QCD sum rule approach, Z. Phys. C 63 (1994) 437 [hep-ph/9401277] [INSPIRE].
M. Diehl, T. Gousset, B. Pire and O. Teryaev, Probing partonic structure in γ ∗ γ → ππ near threshold, Phys. Rev. Lett. 81 (1998) 1782 [hep-ph/9805380] [INSPIRE].
M.V. Polyakov, Hard exclusive electroproduction of two pions and their resonances, Nucl. Phys. B 555 (1999) 231 [hep-ph/9809483] [INSPIRE].
N. Kivel, L. Mankiewicz and M.V. Polyakov, NLO corrections and contribution of a tensor gluon operator to the process γ ∗ γ → ππ, Phys. Lett. B 467 (1999) 263 [hep-ph/9908334] [INSPIRE].
M. Diehl, Generalized parton distributions, Phys. Rept. 388 (2003) 41 [hep-ph/0307382] [INSPIRE].
R.A. Briceño, M.T. Hansen and A. Walker-Loud, Multichannel 1 → 2 transition amplitudes in a finite volume, Phys. Rev. D 91 (2015) 034501 [arXiv:1406.5965] [INSPIRE].
D. Bečirević and A. Tayduganov, Impact of B → K ∗0 ℓ + ℓ − on the new physics search in B → K ∗ ℓ + ℓ − decay, Nucl. Phys. B 868 (2013) 368 [arXiv:1207.4004] [INSPIRE].
U.-G. Meißner and W. Wang, Generalized heavy-to-light form factors in light-cone sum rules, Phys. Lett. B 730 (2014) 336 [arXiv:1312.3087] [INSPIRE].
LHCb collaboration, Measurement of the resonant and CP components in \( {\overline{B}}^0\to J/\psi {\pi}^{+}{\pi}^{-} \) decays, Phys. Rev. D 90 (2014) 012003 [arXiv:1404.5673] [INSPIRE].
CLEO collaboration, B.H. Behrens et al., Measurement of B → ρlν decay and |V ub|, Phys. Rev. D 61 (2000) 052001 [hep-ex/9905056] [INSPIRE].
CLEO collaboration, N.E. Adam et al., A study of exclusive charmless semileptonic B decay and |V ub|, Phys. Rev. Lett. 99 (2007) 041802 [hep-ex/0703041] [INSPIRE].
F. Jegerlehner and R. Szafron, ρ 0 -γ mixing in the neutral channel pion form factor F (e) π (s) and its role in comparing e + e − with τ spectral functions, Eur. Phys. J. C 71 (2011) 1632 [arXiv:1101.2872] [INSPIRE].
U.-G. Meißner and W. Wang, \( {B}_s\to {K}^{\left(\ast \right)}\ell \overline{\nu} \) , angular analysis, S-wave contributions and |V ub|, JHEP 01 (2014) 107 [arXiv:1311.5420] [INSPIRE].
S. Faller, T. Feldmann, A. Khodjamirian, T. Mannel and D. van Dyk, Disentangling the decay observables in \( {B}^{-}\to {\pi}^{+}{\pi}^{-}{\ell}^{-}{\overline{\nu}}_{\ell } \), Phys. Rev. D 89 (2014) 014015 [arXiv:1310.6660] [INSPIRE].
X.-W. Kang, B. Kubis, C. Hanhart and U.-G. Meißner, B l4 decays and the extraction of |V ub|, Phys. Rev. D 89 (2014) 053015 [arXiv:1312.1193] [INSPIRE].
G. Colangelo, E. Passemar and P. Stoffer, A dispersive treatment of K ℓ4 decays, Eur. Phys. J. C 75 (2015) 172 [arXiv:1501.05627] [INSPIRE].
P. Ball and G.W. Jones, Twist-3 distribution amplitudes of K ∗ and ϕ mesons, JHEP 03 (2007) 069 [hep-ph/0702100] [INSPIRE].
M. Dimou, J. Lyon and R. Zwicky, Exclusive chromomagnetism in heavy-to-light FCNCs, Phys. Rev. D 87 (2013) 074008 [arXiv:1212.2242] [INSPIRE].
R. Arthur et al., Lattice results for low moments of light meson distribution amplitudes, Phys. Rev. D 83 (2011) 074505 [arXiv:1011.5906] [INSPIRE].
P. Ball and R. Zwicky, SU(3) breaking of leading-twist K and K ∗ distribution amplitudes — a reprise, Phys. Lett. B 633 (2006) 289 [hep-ph/0510338] [INSPIRE].
P. Ball and V.M. Braun, ρ meson light-cone distribution amplitudes of leading twist reexamined, Phys. Rev. D 54 (1996) 2182 [hep-ph/9602323] [INSPIRE].
P. Ball and R. Zwicky, |V td /V ts | from B → V γ, JHEP 04 (2006) 046 [hep-ph/0603232] [INSPIRE].
RBC-UKQCD collaboration, C. Allton et al., Physical results from 2+1 flavor domain wall QCD and SU(2) chiral perturbation theory, Phys. Rev. D 78 (2008) 114509 [arXiv:0804.0473] [INSPIRE].
A. Bharucha, Two-loop corrections to the B → π form factor from QCD sum rules on the light-cone and |V ub|, JHEP 05 (2012) 092 [arXiv:1203.1359] [INSPIRE].
T.M. Aliev and V.L. Eletsky, On leptonic decay constants of pseudoscalar D and B mesons, Sov. J. Nucl. Phys. 38 (1983) 936 [Yad. Fiz. 38 (1983) 1537] [INSPIRE].
E. Bagan, P. Ball, V.M. Braun and H.G. Dosch, QCD sum rules in the effective heavy quark theory, Phys. Lett. B 278 (1992) 457 [INSPIRE].
LHCb collaboration, Differential branching fraction and angular analysis of the decay B 0 → K ∗0 μ + μ −, JHEP 08 (2013) 131 [arXiv:1304.6325] [INSPIRE].
LHCb collaboration, Measurement of form-factor-independent observables in the decay B 0 → K ∗0 μ + μ −, Phys. Rev. Lett. 111 (2013) 191801 [arXiv:1308.1707] [INSPIRE].
LHCb collaboration, Differential branching fractions and isospin asymmetries of B → K (∗) μ + μ − decays, JHEP 06 (2014) 133 [arXiv:1403.8044] [INSPIRE].
LHCb collaboration, Angular analysis of the B 0 → K ∗0 μ + μ − decay using 3 fb −1 of integrated luminosity, JHEP 02 (2016) 104 [arXiv:1512.04442] [INSPIRE].
CMS collaboration, Angular analysis and branching fraction measurement of the decay B 0 → K ∗0 μ + μ −, Phys. Lett. B 727 (2013) 77 [arXiv:1308.3409] [INSPIRE].
ATLAS collaboration, Angular analysis of B d → K ∗0 μ + μ − with the ATLAS experiment, ATLAS-CONF-2013-038 (2013).
Belle collaboration, A. Abdesselam et al., Angular analysis of B 0 → K ∗(892)0 ℓ + ℓ −, in LHC Ski 2016: a first discussion of 13 TeV results, Obergurgl Austria, 10-15 Apr 2016 [arXiv:1604.04042] [INSPIRE].
S. Descotes-Genon, J. Matias and J. Virto, Understanding the B → K ∗ μ + μ − anomaly, Phys. Rev. D 88 (2013) 074002 [arXiv:1307.5683] [INSPIRE].
W. Altmannshofer and D.M. Straub, New physics in B → K ∗ μμ?, Eur. Phys. J. C 73 (2013) 2646 [arXiv:1308.1501] [INSPIRE].
F. Beaujean, C. Bobeth and D. van Dyk, Comprehensive Bayesian analysis of rare (semi)leptonic and radiative B decays, Eur. Phys. J. C 74 (2014) 2897 [Erratum ibid. C 74 (2014) 3179] [arXiv:1310.2478] [INSPIRE].
J. Lyon and R. Zwicky, Resonances gone topsy turvy — the charm of QCD or new physics in b → sℓ + ℓ − ?, arXiv:1406.0566 [INSPIRE].
W. Altmannshofer and D.M. Straub, New physics in b → s transitions after LHC run 1, Eur. Phys. J. C 75 (2015) 382 [arXiv:1411.3161] [INSPIRE].
H.H. Asatryan, H.M. Asatrian, C. Greub and M. Walker, Calculation of two loop virtual corrections to b → sl + l − in the standard model, Phys. Rev. D 65 (2002) 074004 [hep-ph/0109140] [INSPIRE].
M. Beneke, T. Feldmann and D. Seidel, Systematic approach to exclusive B → V ℓ + ℓ − , V γ decays, Nucl. Phys. B 612 (2001) 25 [hep-ph/0106067] [INSPIRE].
M. Beneke, T. Feldmann and D. Seidel, Exclusive radiative and electroweak b → d and b → s penguin decays at NLO, Eur. Phys. J. C 41 (2005) 173 [hep-ph/0412400] [INSPIRE].
LHCb collaboration, Observation of a resonance in B + → K + μ + μ − decays at low recoil, Phys. Rev. Lett. 111 (2013) 112003 [arXiv:1307.7595] [INSPIRE].
A. Khodjamirian, T. Mannel, A.A. Pivovarov and Y.M. Wang, Charm-loop effect in B → K (∗) ℓ + ℓ − and B → K ∗ γ, JHEP 09 (2010) 089 [arXiv:1006.4945] [INSPIRE].
P. Ball, G.W. Jones and R. Zwicky, B → V γ beyond QCD factorisation, Phys. Rev. D 75 (2007) 054004 [hep-ph/0612081] [INSPIRE].
F. Muheim, Y. Xie and R. Zwicky, Exploiting the width difference in B s → ϕγ, Phys. Lett. B 664 (2008) 174 [arXiv:0802.0876] [INSPIRE].
S. Jäger and J. Martin Camalich, On B → V ℓℓ at small dilepton invariant mass, power corrections and new physics, JHEP 05 (2013) 043 [arXiv:1212.2263] [INSPIRE].
G. Hiller and R. Zwicky, (A)symmetries of weak decays at and near the kinematic endpoint, JHEP 03 (2014) 042 [arXiv:1312.1923] [INSPIRE].
S. Descotes-Genon, J. Matias, M. Ramon and J. Virto, Implications from clean observables for the binned analysis of B → K ∗ μ + μ − at large recoil, JHEP 01 (2013) 048 [arXiv:1207.2753] [INSPIRE].
J. Gratrex, M. Hopfer and R. Zwicky, Generalised helicity formalism, higher moments and the \( B\to {K_J}_{{}_K}\left(\to K\pi \right){\overline{\ell}}_1{\ell}_2 \) angular distributions, Phys. Rev. D 93 (2016) 054008 [arXiv:1506.03970] [INSPIRE].
Particle Data Group collaboration, K.A. Olive et al., Review of particle physics, Chin. Phys. C 38 (2014) 090001 [INSPIRE].
Heavy Flavor Averaging Group (HFAG) collaboration, Y. Amhis et al., Averages of b-hadron, c-hadron and τ -lepton properties as of summer 2014, arXiv:1412.7515 [INSPIRE].
LHCb collaboration, Measurement of the B 0 → K ∗0 e + e − branching fraction at low dilepton mass, JHEP 05 (2013) 159 [arXiv:1304.3035] [INSPIRE].
LHCb collaboration, Angular analysis of the B 0 → K ∗0 e + e − decay in the low-q 2 region, JHEP 04 (2015) 064 [arXiv:1501.03038] [INSPIRE].
S. Descotes-Genon and J. Virto, Time dependence in B → V ℓℓ decays, JHEP 04 (2015) 045 [Erratum ibid. 07 (2015) 049] [arXiv:1502.05509] [INSPIRE].
LHCb collaboration, Measurement of the ratio of branching fractions ℬ(B 0 → K ∗ 0 γ)/ℬ(B 0 s → ϕγ), Phys. Rev. D 85 (2012) 112013 [arXiv:1202.6267] [INSPIRE].
LHCb collaboration, Differential branching fraction and angular analysis of the decay B 0 s → ϕμ + μ −, JHEP 07 (2013) 084 [arXiv:1305.2168] [INSPIRE].
CDF collaboration, Precise measurements of exclusive b → sμ + μ − decay amplitudes using the full CDF data set, CDF Public Note 10894 (2012).
BaBar collaboration, P. del Amo Sanchez et al., Study of B → πℓν and B → ρℓν decays and determination of |V ub|, Phys. Rev. D 83 (2011) 032007 [arXiv:1005.3288] [INSPIRE].
Belle collaboration, A. Sibidanov et al., Study of exclusive B → X u ℓν decays and extraction of |V ub| using full reconstruction tagging at the Belle experiment, Phys. Rev. D 88 (2013) 032005 [arXiv:1306.2781] [INSPIRE].
BaBar collaboration, J.P. Lees et al., Branching fraction measurement of B + → ωℓ + ν decays, Phys. Rev. D 87 (2013) 032004 [Erratum ibid. D 87 (2013) 099904] [arXiv:1205.6245] [INSPIRE].
BaBar collaboration, J.P. Lees et al., Branching fraction and form-factor shape measurements of exclusive charmless semileptonic B decays and determination of |V ub|, Phys. Rev. D 86 (2012) 092004 [arXiv:1208.1253] [INSPIRE].
F.U. Bernlochner, Z. Ligeti and S. Turczyk, New ways to search for right-handed current in \( B\to \rho \ell \overline{\nu} \) decay, Phys. Rev. D 90 (2014) 094003 [arXiv:1408.2516] [INSPIRE].
CKMfitter Group collaboration, J. Charles et al., CP violation and the CKM matrix: assessing the impact of the asymmetric B factories, Eur. Phys. J. C 41 (2005) 1 [hep-ph/0406184] [INSPIRE].
UTfit collaboration, M. Bona et al., The unitarity triangle fit in the standard model and hadronic parameters from lattice QCD: a reappraisal after the measurements of Δm s and BR(B → τ ν τ ), JHEP 10 (2006) 081 [hep-ph/0606167] [INSPIRE].
V.L. Chernyak and A.R. Zhitnitsky, Asymptotic behavior of exclusive processes in QCD, Phys. Rept. 112 (1984) 173 [INSPIRE].
P. Ball, V.M. Braun, Y. Koike and K. Tanaka, Higher twist distribution amplitudes of vector mesons in QCD: formalism and twist-three distributions, Nucl. Phys. B 529 (1998) 323 [hep-ph/9802299] [INSPIRE].
P. Ball, V.M. Braun and A. Lenz, Twist-4 distribution amplitudes of the K ∗ and ϕ mesons in QCD, JHEP 08 (2007) 090 [arXiv:0707.1201] [INSPIRE].
P. Ball and V.M. Braun, Higher twist distribution amplitudes of vector mesons in QCD: twist-4 distributions and meson mass corrections, Nucl. Phys. B 543 (1999) 201 [hep-ph/9810475] [INSPIRE].
K. Maltman and C.E. Wolfe, Isospin breaking vector meson decay constants from continuous families of finite energy sum rules, Phys. Rev. D 59 (1999) 096003 [hep-ph/9810441] [INSPIRE].
K. Maltman, private communication.
C.E. Wolfe and K. Maltman, Consequences of the BaBar and KLOE e + e − → π + π − data for the determination of model-dependent ρ-ω mixing effects in Π ρω (m 2 ρ ) and (g − 2) μ , Phys. Rev. D 83 (2011) 077301 [arXiv:1011.4511] [INSPIRE].
BaBar collaboration, B. Aubert et al., Precise measurement of the e + e − → π + π −(γ) cross section with the initial state radiation method at BABAR, Phys. Rev. Lett. 103 (2009) 231801 [arXiv:0908.3589] [INSPIRE].
E. Braaten and C.-S. Li, Electroweak radiative corrections to the semihadronic decay rate of the τ lepton, Phys. Rev. D 42 (1990) 3888 [INSPIRE].
Y. Grossman, M. König and M. Neubert, Exclusive radiative decays of W and Z bosons in QCD factorization, JHEP 04 (2015) 101 [arXiv:1501.06569] [INSPIRE].
M. König and M. Neubert, Exclusive radiative Higgs decays as probes of light-quark Yukawa couplings, JHEP 08 (2015) 012 [arXiv:1505.03870] [INSPIRE].
P. Golonka and Z. Was, PHOTOS Monte Carlo: a precision tool for QED corrections in Z and W decays, Eur. Phys. J. C 45 (2006) 97 [hep-ph/0506026] [INSPIRE].
K. De Bruyn et al., Branching ratio measurements of B s decays, Phys. Rev. D 86 (2012) 014027 [arXiv:1204.1735] [INSPIRE].
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Bharucha, A., Straub, D.M. & Zwicky, R. B →Vℓ+ℓ− in the Standard Model from light-cone sum rules. J. High Energ. Phys. 2016, 98 (2016). https://doi.org/10.1007/JHEP08(2016)098
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DOI: https://doi.org/10.1007/JHEP08(2016)098