Abstract
We assume that the quark-flavor coefficients matrix of the semileptonic operators addressing the neutral-current B-meson anomalies has rank-one, i.e. it can be described by a single vector in quark-flavor space. By correlating the observed anomalies to other flavor and high-pT observables, we constrain its possible directions and we show that a large region of the parameter space of this framework will be explored by flavor data from the NA62, KOTO, LHCb and Belle II experiments.
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References
LHCb collaboration, Test of lepton universality using B+ → K+ℓ+ℓ−decays, Phys. Rev. Lett.113 (2014) 151601 [arXiv:1406.6482] [INSPIRE].
LHCb collaboration, Search for lepton-universality violation in B+ → K+ℓ+ℓ−decays, Phys. Rev. Lett.122 (2019) 191801 [arXiv:1903.09252] [INSPIRE].
LHCb collaboration, Test of lepton universality with B0 → K∗0ℓ+ℓ−decays, JHEP08 (2017) 055 [arXiv:1705.05802] [INSPIRE].
Belle collaboration, Search for B → ℓνγ and B → μνμand Test of Lepton Universality with R(K∗) at Belle, in proceedings of the 54th Rencontres de Moriond on Electroweak Interactions and Unified Theories (Moriond EW 2019), La Thuile, Italy, 16–23 March 2019.
LHCb collaboration, Differential branching fractions and isospin asymmetries of B → K(∗)μ+μ−decays, JHEP06 (2014) 133 [arXiv:1403.8044] [INSPIRE].
LHCb collaboration, Angular analysis and differential branching fraction of the decay \( {B}_s^0\to {\phi \mu}^{+}{\mu}^{-} \), JHEP09 (2015) 179 [arXiv:1506.08777] [INSPIRE].
LHCb collaboration, Measurement of Form-Factor-Independent Observables in the Decay B0 → K∗0μ+μ−, Phys. Rev. Lett.111 (2013) 191801 [arXiv:1308.1707] [INSPIRE].
LHCb collaboration, Angular analysis of the B0 → K∗0μ+μ−decay using 3 fb−1of integrated luminosity, JHEP02 (2016) 104 [arXiv:1512.04442] [INSPIRE].
LHCb collaboration, Measurement of the \( {B}_s^0\to {\mu}^{+}{\mu}^{-} \)branching fraction and effective lifetime and search for B0 → μ+μ−decays, Phys. Rev. Lett.118 (2017) 191801 [arXiv:1703.05747] [INSPIRE].
ATLAS collaboration, Study of the rare decays of \( {B}_s^0 \)and B0mesons into muon pairs using data collected during 2015 and 2016 with the ATLAS detector, JHEP04 (2019) 098 [arXiv:1812.03017] [INSPIRE].
G. Hiller and M. Schmaltz, RKand future b → sℓℓ physics beyond the standard model opportunities, Phys. Rev.D 90 (2014) 054014 [arXiv:1408.1627] [INSPIRE].
S. Descotes-Genon, L. Hofer, J. Matias and J. Virto, Global analysis of b → sℓℓ anomalies, JHEP06 (2016) 092 [arXiv:1510.04239] [INSPIRE].
W. Altmannshofer, C. Niehoff, P. Stangl and D.M. Straub, Status of the B → K ∗ μ+μ−anomaly after Moriond 2017, Eur. Phys. J.C 77 (2017) 377 [arXiv:1703.09189] [INSPIRE].
B. Capdevila, A. Crivellin, S. Descotes-Genon, J. Matias and J. Virto, Patterns of New Physics in b → sℓ+ℓ−transitions in the light of recent data, JHEP01 (2018) 093 [arXiv:1704.05340] [INSPIRE].
G. D’Amico et al., Flavour anomalies after the RK∗measurement, JHEP09 (2017) 010 [arXiv:1704.05438] [INSPIRE].
W. Altmannshofer, P. Stangl and D.M. Straub, Interpreting Hints for Lepton Flavor Universality Violation, Phys. Rev.D 96 (2017) 055008 [arXiv:1704.05435] [INSPIRE].
L.-S. Geng, B. Grinstein, S. Jäger, J. Martin Camalich, X.-L. Ren and R.-X. Shi, Towards the discovery of new physics with lepton-universality ratios of b → sℓℓ decays, Phys. Rev.D 96 (2017) 093006 [arXiv:1704.05446] [INSPIRE].
M. Ciuchini et al., On Flavourful Easter eggs for New Physics hunger and Lepton Flavour Universality violation, Eur. Phys. J.C 77 (2017) 688 [arXiv:1704.05447] [INSPIRE].
G. Hiller and I. Nisandzic, RKand RK∗beyond the standard model, Phys. Rev.D 96 (2017) 035003 [arXiv:1704.05444] [INSPIRE].
A.K. Alok, B. Bhattacharya, A. Datta, D. Kumar, J. Kumar and D. London, New Physics in b → sμ+μ−after the Measurement of RK∗ , Phys. Rev.D 96 (2017) 095009 [arXiv:1704.07397] [INSPIRE].
T. Hurth, F. Mahmoudi, D. Martinez Santos and S. Neshatpour, Lepton nonuniversality in exclusive b → sℓℓ decays, Phys. Rev.D 96 (2017) 095034 [arXiv:1705.06274] [INSPIRE].
M. Algueró et al., Emerging patterns of New Physics with and without Lepton Flavour Universal contributions, Eur. Phys. J.C 79 (2019) 714 [arXiv:1903.09578] [INSPIRE].
A.K. Alok, A. Dighe, S. Gangal and D. Kumar, Continuing search for new physics in b → sμμ decays: two operators at a time, JHEP06 (2019) 089 [arXiv:1903.09617] [INSPIRE].
M. Ciuchini et al., New Physics in b → sℓ+ℓ−confronts new data on Lepton Universality, Eur. Phys. J.C 79 (2019) 719 [arXiv:1903.09632] [INSPIRE].
J. Aebischer, W. Altmannshofer, D. Guadagnoli, M. Reboud, P. Stangl and D.M. Straub, B-decay discrepancies after Moriond 2019, arXiv:1903.10434 [INSPIRE].
M. Algueró, B. Capdevila, S. Descotes-Genon, P. Masjuan and J. Matias, Are we overlooking lepton-flavour-universal new physics in b → sℓℓ?, Phys. Rev.D 99 (2019) 075017 [arXiv:1809.08447] [INSPIRE].
M. Algueró, B. Capdevila, S. Descotes-Genon, P. Masjuan and J. Matias, What RKand Q5can tell us about New Physics in b → sℓℓ transitions?, JHEP07 (2019) 096 [arXiv:1902.04900] [INSPIRE].
A. Datta, J. Kumar and D. London, The B Anomalies and New Physics in b → se+e−, Phys. Lett.B 797 (2019) 134858 [arXiv:1903.10086] [INSPIRE].
G. D’Ambrosio, G.F. Giudice, G. Isidori and A. Strumia, Minimal flavor violation: An Effective field theory approach, Nucl. Phys.B 645 (2002) 155 [hep-ph/0207036] [INSPIRE].
R. Barbieri, G. Isidori, J. Jones-Perez, P. Lodone and D.M. Straub, U(2) and Minimal Flavour Violation in Supersymmetry, Eur. Phys. J.C 71 (2011) 1725 [arXiv:1105.2296] [INSPIRE].
R. Barbieri, D. Buttazzo, F. Sala and D.M. Straub, Flavour physics from an approximate U(2)3symmetry, JHEP07 (2012) 181 [arXiv:1203.4218] [INSPIRE].
A. Greljo, G. Isidori and D. Marzocca, On the breaking of Lepton Flavor Universality in B decays, JHEP07 (2015) 142 [arXiv:1506.01705] [INSPIRE].
R. Barbieri, G. Isidori, A. Pattori and F. Senia, Anomalies in B-decays and U(2) flavour symmetry, Eur. Phys. J.C 76 (2016) 67 [arXiv:1512.01560] [INSPIRE].
R. Barbieri, C.W. Murphy and F. Senia, B-decay Anomalies in a Composite Leptoquark Model, Eur. Phys. J.C 77 (2017) 8 [arXiv:1611.04930] [INSPIRE].
M. Bordone, G. Isidori and S. Trifinopoulos, Semileptonic B-physics anomalies: A general EFT analysis within U(2)nflavor symmetry, Phys. Rev.D 96 (2017) 015038 [arXiv:1702.07238] [INSPIRE].
M. Bordone, D. Buttazzo, G. Isidori and J. Monnard, Probing Lepton Flavour Universality with \( K\to \pi \nu \overline{\nu} \)decays, Eur. Phys. J.C 77 (2017) 618 [arXiv:1705.10729] [INSPIRE].
D. Buttazzo, A. Greljo, G. Isidori and D. Marzocca, B-physics anomalies: a guide to combined explanations, JHEP11 (2017) 044 [arXiv:1706.07808] [INSPIRE].
R. Barbieri and A. Tesi, B-decay anomalies in Pati-Salam SU(4), Eur. Phys. J.C 78 (2018) 193 [arXiv:1712.06844] [INSPIRE].
S.L. Glashow, D. Guadagnoli and K. Lane, Lepton Flavor Violation in B Decays?, Phys. Rev. Lett.114 (2015) 091801 [arXiv:1411.0565] [INSPIRE].
B. Bhattacharya, A. Datta, D. London and S. Shivashankara, Simultaneous Explanation of the RKand R(D(∗)) Puzzles, Phys. Lett.B 742 (2015) 370 [arXiv:1412.7164] [INSPIRE].
A. Angelescu, D. Bečirević, D.A. Faroughy and O. Sumensari, Closing the window on single leptoquark solutions to the B-physics anomalies, JHEP10 (2018) 183 [arXiv:1808.08179] [INSPIRE].
B. Gripaios, M. Nardecchia and S.A. Renner, Linear flavour violation and anomalies in B physics, JHEP06 (2016) 083 [arXiv:1509.05020] [INSPIRE].
J.M. Cline, B decay anomalies and dark matter from vectorlike confinement, Phys. Rev.D 97 (2018) 015013 [arXiv:1710.02140] [INSPIRE].
J.M. Cline and J.M. Cornell, R(K(∗)) from dark matter exchange, Phys. Lett.B 782 (2018) 232 [arXiv:1711.10770] [INSPIRE].
C. Bobeth, M. Gorbahn, T. Hermann, M. Misiak, E. Stamou and M. Steinhauser, Bs, d → ℓ+ℓ−in the Standard Model with Reduced Theoretical Uncertainty, Phys. Rev. Lett.112 (2014) 101801 [arXiv:1311.0903] [INSPIRE].
LHCb collaboration, First measurement of the differential branching fraction and CP asymmetry of the B± → π±μ+μ−decay, JHEP10 (2015) 034 [arXiv:1509.00414] [INSPIRE].
D. Du et al., Phenomenology of semileptonic B-meson decays with form factors from lattice QCD, Phys. Rev.D 93 (2016) 034005 [arXiv:1510.02349] [INSPIRE].
A. Khodjamirian and A.V. Rusov, Bs → Kℓνℓand B(s) → π(K)ℓ+ℓ−decays at large recoil and CKM matrix elements, JHEP08 (2017) 112 [arXiv:1703.04765] [INSPIRE].
LHCb collaboration, Improved limit on the branching fraction of the rare decay \( {K}_{\mathrm{S}}^0\to {\mu}^{+}{\mu}^{-} \), Eur. Phys. J.C 77 (2017) 678 [arXiv:1706.00758] [INSPIRE].
E871 collaboration, Improved branching ratio measurement for the decay \( {K}_L^0\to {\mu}^{+}{\mu}^{-} \), Phys. Rev. Lett.84 (2000) 1389 [INSPIRE].
G. Isidori and R. Unterdorfer, On the short distance constraints from KL, S → μ+μ−, JHEP01 (2004) 009 [hep-ph/0311084] [INSPIRE].
KTEV collaboration, Search for the Decay KL → π0μ+μ−, Phys. Rev. Lett.84 (2000) 5279 [hep-ex/0001006] [INSPIRE].
G. D’Ambrosio, G. Ecker, G. Isidori and J. Portoles, The Decays K → π + ℓ+ℓ−beyond leading order in the chiral expansion, JHEP08 (1998) 004 [hep-ph/9808289] [INSPIRE].
G. Buchalla, G. D’Ambrosio and G. Isidori, Extracting short distance physics from KL, S → π0e+e−decays, Nucl. Phys.B 672 (2003) 387 [hep-ph/0308008] [INSPIRE].
G. Isidori, C. Smith and R. Unterdorfer, The Rare decay KL → π0μ+μ−within the SM, Eur. Phys. J.C 36 (2004) 57 [hep-ph/0404127] [INSPIRE].
F. Mescia, C. Smith and S. Trine, KL → π0e+e−and KL → π0μ+μ−: A Binary star on the stage of flavor physics, JHEP08 (2006) 088 [hep-ph/0606081] [INSPIRE].
LHCb collaboration, Search for the rare decay KS → μ+μ−, JHEP01 (2013) 090 [arXiv:1209.4029] [INSPIRE].
C. Bobeth and A.J. Buras, Leptoquarks meet ε ′ /ε and rare Kaon processes, JHEP02 (2018) 101 [arXiv:1712.01295] [INSPIRE].
E949 collaboration, New measurement of the \( {K}^{+}\to {\pi}^{+}\nu \overline{\nu} \)branching ratio, Phys. Rev. Lett.101 (2008) 191802 [arXiv:0808.2459] [INSPIRE].
A.J. Buras, D. Buttazzo, J. Girrbach-Noe and R. Knegjens, \( {K}^{+}\to {\pi}^{+}\nu \overline{\nu} \)and \( {K}_L\to {\pi}^0\nu \overline{\nu} \)in the Standard Model: status and perspectives, JHEP11 (2015) 033 [arXiv:1503.02693] [INSPIRE].
KOTO collaboration, Search for the \( {K}_L\to {\pi}^0\nu \overline{\nu} \)and KL → π0X0decays at the J-PARC KOTO experiment, Phys. Rev. Lett.122 (2019) 021802 [arXiv:1810.09655] [INSPIRE].
ATLAS collaboration, Search for new high-mass phenomena in the dilepton final state using 36 fb−1of proton-proton collision data at \( \sqrt{s} \) = 13 TeV with the ATLAS detector, JHEP10 (2017) 182 [arXiv:1707.02424] [INSPIRE].
A. Greljo and D. Marzocca, High-pTdilepton tails and flavor physics, Eur. Phys. J.C 77 (2017) 548 [arXiv:1704.09015] [INSPIRE].
B. Gripaios, M. Nardecchia and S.A. Renner, Composite leptoquarks and anomalies in B-meson decays, JHEP05 (2015) 006 [arXiv:1412.1791] [INSPIRE].
I. de Medeiros Varzielas and G. Hiller, Clues for flavor from rare lepton and quark decays, JHEP06 (2015) 072 [arXiv:1503.01084] [INSPIRE].
I. Doršner, S. Fajfer, D.A. Faroughy and N. Košnik, The role of the S3GUT leptoquark in flavor universality and collider searches, JHEP10 (2017) 188 [arXiv:1706.07779] [INSPIRE].
R. Alonso, B. Grinstein and J. Martin Camalich, Lepton universality violation and lepton flavor conservation in B-meson decays, JHEP10 (2015) 184 [arXiv:1505.05164] [INSPIRE].
L. Di Luzio, A. Greljo and M. Nardecchia, Gauge leptoquark as the origin of B-physics anomalies, Phys. Rev.D 96 (2017) 115011 [arXiv:1708.08450] [INSPIRE].
M. Bordone, C. Cornella, J. Fuentes-Martin and G. Isidori, A three-site gauge model for flavor hierarchies and flavor anomalies, Phys. Lett.B 779 (2018) 317 [arXiv:1712.01368] [INSPIRE].
L. Di Luzio, J. Fuentes-Martin, A. Greljo, M. Nardecchia and S. Renner, Maximal Flavour Violation: a Cabibbo mechanism for leptoquarks, JHEP11 (2018) 081 [arXiv:1808.00942] [INSPIRE].
M. Bordone, C. Cornella, J. Fuentes-Martín and G. Isidori, Low-energy signatures of the PS3model: from B-physics anomalies to LFV, JHEP10 (2018) 148 [arXiv:1805.09328] [INSPIRE].
A. Crivellin, C. Greub, D. Müller and F. Saturnino, Importance of Loop Effects in Explaining the Accumulated Evidence for New Physics in B Decays with a Vector Leptoquark, Phys. Rev. Lett.122 (2019) 011805 [arXiv:1807.02068] [INSPIRE].
M.J. Baker, J. Fuentes-Martín, G. Isidori and M. König, High-pTsignatures in vector-leptoquark models, Eur. Phys. J.C 79 (2019) 334 [arXiv:1901.10480] [INSPIRE].
W. Altmannshofer, S. Gori, M. Pospelov and I. Yavin, Quark flavor transitions in Lμ– Lτmodels, Phys. Rev.D 89 (2014) 095033 [arXiv:1403.1269] [INSPIRE].
A. Crivellin, G. D’Ambrosio and J. Heeck, Explaining h → μ±τ∓, B → K ∗ μ+μ−and B → Kμ+μ−/B → Ke+e−in a two-Higgs-doublet model with gauged Lμ− Lτ, Phys. Rev. Lett.114 (2015) 151801 [arXiv:1501.00993] [INSPIRE].
C. Bonilla, T. Modak, R. Srivastava and J.W.F. Valle, \( \mathrm{U}{(1)}_{B_3-3{L}_{\mu }} \)gauge symmetry as a simple description of b → s anomalies, Phys. Rev.D 98 (2018) 095002 [arXiv:1705.00915] [INSPIRE].
A. Biswas and A. Shaw, Reconciling dark matter, RK(∗)anomalies and (g − 2)μin an Lμ− Lτscenario, JHEP05 (2019) 165 [arXiv:1903.08745] [INSPIRE].
L. Di Luzio and M. Nardecchia, What is the scale of new physics behind the B-flavour anomalies?, Eur. Phys. J.C 77 (2017) 536 [arXiv:1706.01868] [INSPIRE].
LHCb collaboration, Physics case for an LHCb Upgrade II — Opportunities in flavour physics and beyond, in the HL-LHC era, arXiv:1808.08865 [INSPIRE].
Belle-II collaboration, The Belle II Physics Book, arXiv:1808.10567 [INSPIRE].
A. Cerri et al., Opportunities in Flavour Physics at the HL-LHC and HE-LHC, arXiv:1812.07638 [INSPIRE].
KLEVER Project collaboration, KLEVER: An experiment to measure \( BR\left({K}_L\to {\pi}^0\nu \overline{\nu}\right) \)at the CERN SPS, arXiv:1901.03099 [INSPIRE].
NA62 collaboration, Status of the CERN NA62 Experiment, J. Phys. Conf. Ser.800 (2017) 012023 [INSPIRE].
M. Bordone, G. Isidori and A. Pattori, On the Standard Model predictions for RKand RK∗ , Eur. Phys. J.C 76 (2016) 440 [arXiv:1605.07633] [INSPIRE].
W. Altmannshofer, P. Ball, A. Bharucha, A.J. Buras, D.M. Straub and M. Wick, Symmetries and Asymmetries of B → K ∗ μ+μ−Decays in the Standard Model and Beyond, JHEP01 (2009) 019 [arXiv:0811.1214] [INSPIRE].
C. Bobeth, G. Hiller, D. van Dyk and C. Wacker, The Decay B → Kℓ+ℓ−at Low Hadronic Recoil and Model-Independent ΔB = 1 Constraints, JHEP01 (2012) 107 [arXiv:1111.2558] [INSPIRE].
D. Becirevic, N. Kosnik, F. Mescia and E. Schneider, Complementarity of the constraints on New Physics from Bs → μ+μ−and from B → Kℓ+ℓ−decays, Phys. Rev.D 86 (2012) 034034 [arXiv:1205.5811] [INSPIRE].
A. Bharucha, D.M. Straub and R. Zwicky, B → Vℓ+ℓ−in the Standard Model from light-cone sum rules, JHEP08 (2016) 098 [arXiv:1503.05534] [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].
G. Hiller and M. Schmaltz, Diagnosing lepton-nonuniversality in b → sℓℓ , JHEP02 (2015) 055 [arXiv:1411.4773] [INSPIRE].
A.J. Buras, Weak Hamiltonian, CP-violation and rare decays, in proceedings of the Les Houches Summer School in Theoretical Physics, Session 68: Probing the Standard Model of Particle Interactions, Les Houches, France, 28 July–5 September 1997, pp. 281–539 [hep-ph/9806471] [INSPIRE].
G. Buchalla and A.J. Buras, The rare decays \( {K}^{+}\to {\pi}^{+}\nu \overline{\nu} \)and KL → μ+μ−beyond leading logarithms, Nucl. Phys.B 412 (1994) 106 [hep-ph/9308272] [INSPIRE].
Particle Data Group collaboration, Review of Particle Physics, Phys. Rev.D 98 (2018) 030001 [INSPIRE].
UTfit collaboration, Model-independent constraints on ΔF = 2 operators and the scale of new physics, JHEP03 (2008) 049 [arXiv:0707.0636] [INSPIRE].
J. Aebischer, C. Bobeth, A.J. Buras, J.-M. Gérard and D.M. Straub, Master formula for ε ′ /ε beyond the Standard Model, Phys. Lett.B 792 (2019) 465 [arXiv:1807.02520] [INSPIRE].
J. Aebischer, C. Bobeth, A.J. Buras and D.M. Straub, Anatomy of ε ′ /ε beyond the standard model, Eur. Phys. J.C 79 (2019) 219 [arXiv:1808.00466] [INSPIRE].
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Gherardi, V., Marzocca, D., Nardecchia, M. et al. Rank-one flavor violation and B-meson anomalies. J. High Energ. Phys. 2019, 112 (2019). https://doi.org/10.1007/JHEP10(2019)112
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DOI: https://doi.org/10.1007/JHEP10(2019)112