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Collider constraints on Z models for neutral current B-anomalies

A preprint version of the article is available at arXiv.

Abstract

We examine current collider constraints on some simple Z models that fit neutral current B-anomalies, including constraints coming from measurements of Standard Model (SM) signatures at the LHC. The ‘MDM’ simplified model is not constrained by the SM measurements but is strongly constrained by a 139 fb−1 13 TeV ATLAS di-muon search. Constraints upon the ‘MUM’ simplified model are much weaker. A combination of the current Bs mixing constraint and ATLAS’ Z search implies \( {M}_{Z^{\prime }}>1.2 \) TeV in the Third Family Hypercharge Model example case. LHC SM measurements rule out a portion of the parameter space of the model for \( {M}_{Z^{\prime }}>1.5 \) TeV.

References

  1. LHCb collaboration, Test of lepton universality with B 0K ∗0 + decays, JHEP08 (2017) 055 [arXiv:1705.05802] [INSPIRE].

  2. LHCb collaboration, Search for lepton-universality violation in B +K + + decays, Phys. Rev. Lett.122 (2019) 191801 [arXiv:1903.09252] [CERN-EP-2019-043] [LHCB-PAPER-2019-009] [INSPIRE].

  3. ATLAS collaboration, Study of the rare decays of \( {B}_s^0 \)and B 0mesons into muon pairs using data collected during 2015 and 2016 with the ATLAS detector, JHEP04 (2019) 098 [arXiv:1812.03017] [INSPIRE].

  4. CMS collaboration, Measurement of the \( {B}_s^0\to {\mu}^{+}{\mu}^{-} \)Branching Fraction and Search for B 0μ +μ with the CMS Experiment, Phys. Rev. Lett.111 (2013) 101804 [arXiv:1307.5025] [INSPIRE].

  5. CMS and LHCb collaborations, Observation of the rare \( {B}_s^0\to {\mu}^{+}{\mu}^{-} \)decay from the combined analysis of CMS and LHCb data, Nature522 (2015) 68 [arXiv:1411.4413] [INSPIRE].

  6. LHCb collaboration, Measurement of the \( {B}_s^0\to {\mu}^{+}{\mu}^{-} \)branching fraction and effective lifetime and search for B 0μ +μ decays, Phys. Rev. Lett.118 (2017) 191801 [arXiv:1703.05747] [INSPIRE].

  7. LHCb collaboration, Measurement of Form-Factor-Independent Observables in the Decay B 0K ∗0μ +μ , Phys. Rev. Lett.111 (2013) 191801 [arXiv:1308.1707] [INSPIRE].

  8. LHCb collaboration, Angular analysis of the B 0K ∗0μ +μ decay using 3 fb −1of integrated luminosity, JHEP02 (2016) 104 [arXiv:1512.04442] [INSPIRE].

  9. ATLAS collaboration, Angular analysis of \( {B}_d^0\to {K}^{\ast }{\mu}^{+}{\mu}^{-} \)decays in pp collisions at \( \sqrt{s} \) = 8 TeV with the ATLAS detector, ATLAS-CONF-2017-023 (2017) [INSPIRE].

  10. CMS collaboration, Measurement of the P 1and \( {P}_5^{\prime } \)angular parameters of the decay B 0K ∗0μ +μ in proton-proton collisions at \( \sqrt{s} \) = 8 TeV, CMS-PAS-BPH-15-008 (2017) [INSPIRE].

  11. CMS collaboration, Angular analysis of the decay B 0K ∗0μ +μ from pp collisions at \( \sqrt{s} \) = 8 TeV, Phys. Lett.B 753 (2016) 424 [arXiv:1507.08126] [INSPIRE].

  12. C. Bobeth, M. Chrzaszcz, D. van Dyk and J. Virto, Long-distance effects in BK ℓℓ from analyticity, Eur. Phys. J.C 78 (2018) 451 [arXiv:1707.07305] [INSPIRE].

  13. W. Altmannshofer and D.M. Straub, New Physics in BK μμ?, Eur. Phys. J.C 73 (2013) 2646 [arXiv:1308.1501] [INSPIRE].

  14. W. Altmannshofer and D.M. Straub, New physics in bs transitions after LHC run 1, Eur. Phys. J.C 75 (2015) 382 [arXiv:1411.3161] [INSPIRE].

  15. 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].

  16. 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].

  17. B. Capdevila, A. Crivellin, S. Descotes-Genon, J. Matias and J. Virto, Patterns of New Physics in bsℓ + transitions in the light of recent data, JHEP01 (2018) 093 [arXiv:1704.05340] [INSPIRE].

  18. 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 bsℓℓ decays, Phys. Rev.D 96 (2017) 093006 [arXiv:1704.05446] [INSPIRE].

  19. G. D’Amico et al., Flavour anomalies after the \( {R}_{K^{\ast }} \)measurement, JHEP09 (2017) 010 [arXiv:1704.05438] [INSPIRE].

  20. S. Di Chiara et al., Minimal flavor-changing Z models and muon g − 2 after the \( {R}_{K^{\ast }} \)measurement, Nucl. Phys.B 923 (2017) 245 [arXiv:1704.06200] [INSPIRE].

  21. J. Albrecht, F. Bernlochner, M. Kenzie, S. Reichert, D. Straub and A. Tully, Future prospects for exploring present day anomalies in flavour physics measurements with Belle II and LHCb, arXiv:1709.10308 [INSPIRE].

  22. M. Algueró et al., Emerging patterns of New Physics with and without Lepton Flavour Universal contributions, arXiv:1903.09578 [INSPIRE].

  23. A.K. Alok, A. Dighe, S. Gangal and D. Kumar, Continuing search for new physics in bsμμ decays: two operators at a time, JHEP06 (2019) 089 [arXiv:1903.09617] [INSPIRE].

  24. M. Ciuchini et al., New Physics in bsℓ + confronts new data on Lepton Universality, arXiv:1903.09632 [INSPIRE].

  25. J. Aebischer, W. Altmannshofer, D. Guadagnoli, M. Reboud, P. Stangl and D.M. Straub, B-decay discrepancies after Moriond 2019, arXiv:1903.10434 [INSPIRE].

  26. K. Kowalska, D. Kumar and E.M. Sessolo, Implications for New Physics in bsμμ transitions after recent measurements by Belle and LHCb, arXiv:1903.10932 [INSPIRE].

  27. A. Arbey, T. Hurth, F. Mahmoudi, D.M. Santos and S. Neshatpour, Update on the bs anomalies, arXiv:1904.08399 [INSPIRE].

  28. J. Ellis, M. Fairbairn and P. Tunney, Anomaly-Free Models for Flavour Anomalies, Eur. Phys. J.C 78 (2018) 238 [arXiv:1705.03447] [INSPIRE].

  29. B.C. Allanach, J. Davighi and S. Melville, An Anomaly-free ATLAS: charting the space of flavour-dependent gauged U(1) extensions of the Standard Model, JHEP02 (2019) 082 [arXiv:1812.04602] [INSPIRE].

  30. R. Gauld, F. Goertz and U. Haisch, On minimal Z explanations of the BK μ +μ anomaly, Phys. Rev.D 89 (2014) 015005 [arXiv:1308.1959] [INSPIRE].

  31. A.J. Buras, F. De Fazio and J. Girrbach, 331 models facing new b +μ data, JHEP02 (2014) 112 [arXiv:1311.6729] [INSPIRE].

  32. A.J. Buras and J. Girrbach, Left-handed Z and Z FCNC quark couplings facing new b +μ data, JHEP12 (2013) 009 [arXiv:1309.2466] [INSPIRE].

  33. W. Altmannshofer, S. Gori, M. Pospelov and I. Yavin, Quark flavor transitions in L μL τmodels, Phys. Rev.D 89 (2014) 095033 [arXiv:1403.1269] [INSPIRE].

  34. A.J. Buras, F. De Fazio and J. Girrbach-Noe, Z-Z mixing and Z-mediated FCNCs in SU(3)C × SU(3)L × U(1)Xmodels, JHEP08 (2014) 039 [arXiv:1405.3850] [INSPIRE].

  35. A. Crivellin, G. D’Ambrosio and J. Heeck, Explaining hμ ±τ , BK μ +μ and B +μ /BKe +e in a two-Higgs-doublet model with gauged L μL τ, Phys. Rev. Lett.114 (2015) 151801 [arXiv:1501.00993] [INSPIRE].

  36. A. Crivellin, G. D’Ambrosio and J. Heeck, Addressing the LHC flavor anomalies with horizontal gauge symmetries, Phys. Rev.D 91 (2015) 075006 [arXiv:1503.03477] [INSPIRE].

  37. D. Aristizabal Sierra, F. Staub and A. Vicente, Shedding light on the bs anomalies with a dark sector, Phys. Rev.D 92 (2015) 015001 [arXiv:1503.06077] [INSPIRE].

  38. A. Crivellin, L. Hofer, J. Matias, U. Nierste, S. Pokorski and J. Rosiek, Lepton-flavour violating B decays in generic Z models, Phys. Rev.D 92 (2015) 054013 [arXiv:1504.07928] [INSPIRE].

  39. A. Celis, J. Fuentes-Martin, M. Jung and H. Serodio, Family nonuniversal Z models with protected flavor-changing interactions, Phys. Rev.D 92 (2015) 015007 [arXiv:1505.03079] [INSPIRE].

  40. A. Greljo, G. Isidori and D. Marzocca, On the breaking of Lepton Flavor Universality in B decays, JHEP07 (2015) 142 [arXiv:1506.01705] [INSPIRE].

  41. W. Altmannshofer and I. Yavin, Predictions for lepton flavor universality violation in rare B decays in models with gauged L μL τ, Phys. Rev.D 92 (2015) 075022 [arXiv:1508.07009] [INSPIRE].

  42. B. Allanach, F.S. Queiroz, A. Strumia and S. Sun, Z models for the LHCb and g − 2 muon anomalies, Phys. Rev.D 93 (2016) 055045 [Erratum ibid.D 95 (2017) 119902] [arXiv:1511.07447] [INSPIRE].

  43. A. Falkowski, M. Nardecchia and R. Ziegler, Lepton Flavor Non-Universality in B-meson Decays from a U(2) Flavor Model, JHEP11 (2015) 173 [arXiv:1509.01249] [INSPIRE].

  44. C.-W. Chiang, X.-G. He and G. Valencia, Z model for b\( s\mathrm{\ell}\overline{\mathrm{\ell}} \)flavor anomalies, Phys. Rev.D 93 (2016) 074003 [arXiv:1601.07328] [INSPIRE].

  45. D. Bečirević, O. Sumensari and R. Zukanovich Funchal, Lepton flavor violation in exclusive bs decays, Eur. Phys. J.C 76 (2016) 134 [arXiv:1602.00881] [INSPIRE].

  46. S.M. Boucenna, A. Celis, J. Fuentes-Martin, A. Vicente and J. Virto, Non-abelian gauge extensions for B-decay anomalies, Phys. Lett.B 760 (2016) 214 [arXiv:1604.03088] [INSPIRE].

  47. S.M. Boucenna, A. Celis, J. Fuentes-Martin, A. Vicente and J. Virto, Phenomenology of an SU(2) × SU(2) × U(1) model with lepton-flavour non-universality, JHEP12 (2016) 059 [arXiv:1608.01349] [INSPIRE].

  48. P. Ko, Y. Omura, Y. Shigekami and C. Yu, LHCb anomaly and B physics in flavored Z models with flavored Higgs doublets, Phys. Rev.D 95 (2017) 115040 [arXiv:1702.08666] [INSPIRE].

  49. R. Alonso, P. Cox, C. Han and T.T. Yanagida, Anomaly-free local horizontal symmetry and anomaly-full rare B-decays, Phys. Rev.D 96 (2017) 071701 [arXiv:1704.08158] [INSPIRE].

  50. R. Alonso, P. Cox, C. Han and T.T. Yanagida, Flavoured BL local symmetry and anomalous rare B decays, Phys. Lett.B 774 (2017) 643 [arXiv:1705.03858] [INSPIRE].

  51. Y. Tang and Y.-L. Wu, Flavor non-universal gauge interactions and anomalies in B-meson decays, Chin. Phys.C 42 (2018) 033104 [arXiv:1705.05643] [INSPIRE].

  52. 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 bs anomalies, Phys. Rev.D 98 (2018) 095002 [arXiv:1705.00915] [INSPIRE].

  53. D. Bhatia, S. Chakraborty and A. Dighe, Neutrino mixing and R Kanomaly in U(1)Xmodels: a bottom-up approach, JHEP03 (2017) 117 [arXiv:1701.05825] [INSPIRE].

  54. C.-H. Chen and T. Nomura, Penguin bsℓ + and B-meson anomalies in a gauged L μL τ, Phys. Lett.B 777 (2018) 420 [arXiv:1707.03249] [INSPIRE]

  55. G. Faisel and J. Tandean, Connecting b\( s\mathrm{\ell}\overline{\mathrm{\ell}} \)anomalies to enhanced rare nonleptonic \( {\overline{B}}_s^0 \)decays in Z model, JHEP02 (2018) 074 [arXiv:1710.11102] [INSPIRE].

  56. K. Fuyuto, H.-L. Li and J.-H. Yu, Implications of hidden gauged U(1) model for B anomalies, Phys. Rev.D 97 (2018) 115003 [arXiv:1712.06736] [INSPIRE].

  57. L. Bian, H.M. Lee and C.B. Park, B-meson anomalies and Higgs physics in flavored U(1)model, Eur. Phys. J.C 78 (2018) 306 [arXiv:1711.08930] [INSPIRE].

  58. M. Abdullah et al., Bottom-quark fusion processes at the LHC for probing Z models and B-meson decay anomalies, Phys. Rev.D 97 (2018) 075035 [arXiv:1707.07016] [INSPIRE].

  59. S.F. King, \( {R}_{K^{\left(\ast \right)}} \)and the origin of Yukawa couplings, JHEP09 (2018) 069 [arXiv:1806.06780] [INSPIRE].

  60. G.H. Duan, X. Fan, M. Frank, C. Han and J.M. Yang, A minimal U(1)extension of MSSM in light of the B decay anomaly, Phys. Lett.B 789 (2019) 54 [arXiv:1808.04116] [INSPIRE].

  61. B.C. Allanach and J. Davighi, Third family hypercharge model for \( {R}_{K^{\left(\ast \right)}} \)and aspects of the fermion mass problem, JHEP12 (2018) 075 [arXiv:1809.01158] [INSPIRE].

  62. B.C. Allanach, T. Corbett, M.J. Dolan and T. You, Hadron collider sensitivity to fat flavourful Z s for \( {R}_{K^{\left(\ast \right)}} \), JHEP03 (2019) 137 [arXiv:1810.02166] [INSPIRE].

  63. A. Crivellin, J. Fuentes-Martin, A. Greljo and G. Isidori, Lepton Flavor Non-Universality in B decays from Dynamical Yukawas, Phys. Lett.B 766 (2017) 77 [arXiv:1611.02703] [INSPIRE].

    ADS  Article  Google Scholar 

  64. J.F. Kamenik, Y. Soreq and J. Zupan, Lepton flavor universality violation without new sources of quark flavor violation, Phys. Rev.D 97 (2018) 035002 [arXiv:1704.06005] [INSPIRE].

  65. J.E. Camargo-Molina, A. Celis and D.A. Faroughy, Anomalies in Bottom from new physics in Top, Phys. Lett.B 784 (2018) 284 [arXiv:1805.04917] [INSPIRE].

  66. R.S. Chivukula, J. Isaacson, K.A. Mohan, D. Sengupta and E.H. Simmons, R Kanomalies and simplified limits on Z models at the LHC, Phys. Rev.D 96 (2017) 075012 [arXiv:1706.06575] [INSPIRE].

  67. B.C. Allanach, B. Gripaios and T. You, The case for future hadron colliders from BK (∗)μ +μ decays, JHEP03 (2018) 021 [arXiv:1710.06363] [INSPIRE].

  68. FCC collaboration, FCC Physics Opportunities, Eur. Phys. J.C 79 (2019) 474 [INSPIRE].

  69. ATLAS collaboration, Search for heavy particles decaying into top-quark pairs using lepton-plus-jets events in proton-proton collisions at \( \sqrt{s} \) = 13 TeV with the ATLAS detector, Eur. Phys. J.C 78 (2018) 565 [arXiv:1804.10823] [INSPIRE].

  70. ATLAS collaboration, Search for heavy particles decaying into a top-quark pair in the fully hadronic final state in pp collisions at \( \sqrt{s} \) = 13 TeV with the ATLAS detector, Phys. Rev.D 99 (2019) 092004 [arXiv:1902.10077] [INSPIRE].

  71. ATLAS collaboration, A search for high-mass resonances decaying to τ +τ in pp collisions at \( \sqrt{s} \) = 8 TeV with the ATLAS detector, JHEP07 (2015) 157 [arXiv:1502.07177] [INSPIRE].

  72. ATLAS collaboration, Search for high-mass dilepton resonances using 139 fb −1of pp collision data collected at \( \sqrt{s} \) = 13 TeV with the ATLAS detector, Phys. Lett.B 796 (2019) 68 [arXiv:1903.06248] [INSPIRE].

  73. ATLAS collaboration, Search for high-mass dilepton resonances using 139 fb −1of pp collision data collected at \( \sqrt{s} \) = 13 TeV with the ATLAS detector, Phys. Lett.B 796 (2019) 68 [arXiv:1903.06248] [INSPIRE].

  74. HFLAV collaboration, Averages of b-hadron, c-hadron and τ -lepton properties as of summer 2016, Eur. Phys. J.C 77 (2017) 895 [arXiv:1612.07233] [INSPIRE].

  75. D. King, A. Lenz and T. Rauh, B smixing observables and |V td/V ts| from sum rules, JHEP05 (2019) 034 [arXiv:1904.00940] [INSPIRE].

  76. L. Di Luzio, M. Kirk and A. Lenz, Updated B s-mixing constraints on new physics models for bsℓ + anomalies, Phys. Rev.D 97 (2018) 095035 [arXiv:1712.06572] [INSPIRE].

  77. C. Degrande, C. Duhr, B. Fuks, D. Grellscheid, O. Mattelaer and T. Reiter, UFOThe Universal FeynRules Output, Comput. Phys. Commun.183 (2012) 1201 [arXiv:1108.2040] [INSPIRE].

  78. A. Alloul, N.D. Christensen, C. Degrande, C. Duhr and B. Fuks, FeynRules 2.0A complete toolbox for tree-level phenomenology, Comput. Phys. Commun.185 (2014) 2250 [arXiv:1310.1921] [INSPIRE].

  79. J. Alwall et al., The automated computation of tree-level and next-to-leading order differential cross sections and their matching to parton shower simulations, JHEP07 (2014) 079 [arXiv:1405.0301] [INSPIRE].

  80. M. Lim, F. Maltoni, G. Ridolfi and M. Ubiali, Anatomy of double heavy-quark initiated processes, JHEP09 (2016) 132 [arXiv:1605.09411] [INSPIRE].

  81. J.M. Butterworth, D. Grellscheid, M. Krämer, B. Sarrazin and D. Yallup, Constraining new physics with collider measurements of Standard Model signatures, JHEP03 (2017) 078 [arXiv:1606.05296] [INSPIRE].

  82. J. Bellm et al., HERWIG 7.0/HERWIG++ 3.0 release note, Eur. Phys. J.C 76 (2016) 196 [arXiv:1512.01178] [INSPIRE].

  83. J. Bellm et al., HERWIG 7.1 Release Note, arXiv:1705.06919 [INSPIRE].

  84. A. Buckley et al., Rivet user manual, Comput. Phys. Commun.184 (2013) 2803 [arXiv:1003.0694] [INSPIRE].

  85. G. Brooijmans et al., Proceedings of the Les Houches 2017: Physics at TeV Colliders New Physics Working Group Report, Les Houches, France, 5-23 June 2017, arXiv:1803.10379 [INSPIRE].

  86. S. Amrith, J.M. Butterworth, F.F. Deppisch, W. Liu, A. Varma and D. Yallup, LHC constraints on a BL gauge model using Contur, JHEP05 (2019) 154 [arXiv:1811.11452] [INSPIRE].

  87. ATLAS collaboration, Measurements of inclusive and differential fiducial cross-sections of tt production with additional heavy-flavour jets in proton-proton collisions at \( \sqrt{s} \) = 13 TeV with the ATLAS detector, JHEP04 (2019) 046 [arXiv:1811.12113] [INSPIRE].

  88. ATLAS collaboration, Search for triboson W ±W ±W production in pp collisions at \( \sqrt{s} \) = 8 TeV with the ATLAS detector, Eur. Phys. J.C 77 (2017) 141 [arXiv:1610.05088] [INSPIRE].

  89. CMS collaboration, Measurement of differential cross sections for top quark pair production using the lepton + jets final state in proton-proton collisions at 13 TeV, Phys. Rev.D 95 (2017) 092001 [arXiv:1610.04191] [INSPIRE].

  90. ATLAS collaboration, Measurement of the double-differential high-mass Drell-Yan cross section in pp collisions at \( \sqrt{s} \) = 8 TeV with the ATLAS detector, JHEP08 (2016) 009 [arXiv:1606.01736] [INSPIRE].

  91. Working Group 3, Beyond the Standard Model Physics at the HL-LHC and HE-LHC, arXiv:1812.07831 [INSPIRE].

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Allanach, B.C., Butterworth, J.M. & Corbett, T. Collider constraints on Z models for neutral current B-anomalies. J. High Energ. Phys. 2019, 106 (2019). https://doi.org/10.1007/JHEP08(2019)106

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Keywords

  • Beyond Standard Model
  • Heavy Quark Physics