Abstract
With the prospect of improved Higgs measurements at the LHC and at proposed future colliders such as ILC, CLIC and TLEP we study the non-custodial Randall-Sundrum model with bulk SM fields and compare brane and bulk Higgs scenarios. The latter bear resemblance to the well studied type III two-Higgs-doublet models. We compute the electroweak precision observables and argue that incalculable contributions to these, in the form of higher dimensional operators, could have an impact on the T -parameter. This could potentially reduce the bound on the lowest Kaluza-Klein gauge boson masses to the 5 TeV range, making them detectable at the LHC. In a second part, we compute the misalignment between fermion masses and Yukawa couplings caused by vector-like Kaluza-Klein fermions in this setup. The misalignment of the top Yukawa can easily reach 10%, making it observable at the high-luminosity LHC. Corrections to the bottom and tau Yukawa couplings can be at the percent level and detectable at ILC, CLIC or TLEP.
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References
L. Randall and R. Sundrum, A Large mass hierarchy from a small extra dimension, Phys. Rev. Lett. 83 (1999) 3370 [hep-ph/9905221] [INSPIRE].
W.D. Goldberger and M.B. Wise, Modulus stabilization with bulk fields, Phys. Rev. Lett. 83 (1999)4922 [hep-ph/9907447] [ INSPIRE ].
N. Arkani-Hamed and M. Schmaltz, Hierarchies without symmetries from extra dimensions, Phys. Rev. D 61 (2000) 033005 [hep-ph/9903417] [ INSPIRE ].
S.J. Huber and Q. Shafi, Fermion masses, mixings and proton decay in a Randall-Sundrum model, Phys. Lett. B 498 (2001) 256 [hep-ph/0010195] [ INSPIRE ].
T. Gherghetta and A. Pomarol, Bulk fields and supersymmetry in a slice of AdS, Nucl. Phys. B 586 (2000) 141 [hep-ph/0003129] [ INSPIRE ].
M.A. Luty and R. Sundrum, Radius stabilization and anomaly mediated supersymmetry breaking, Phys. Rev. D 62 (2000) 035008 [hep-th/9910202] [INSPIRE]
C.P. Burgess, P.G. Camara, S.P. de Alwis, S.B. Giddings, A. Maharana et al., Warped Supersymmetry Breaking, JHEP 04 (2008) 053 [hep-th/0610255] [ INSPIRE ]
K. Agashe, R. Contino and A. Pomarol, The Minimal composite Higgs model, Nucl. Phys. B 719 (2005)165 [hep-ph/0412089] [ INSPIRE ].
R. Contino, T. Kramer, M. Son and R. Sundrum, Warped/composite phenomenology simplified, JHEP 05 (2007) 074 [hep-ph/0612180] [ INSPIRE ].
R. Contino, The Higgs as a composite Nambu-Goldstone boson, arXiv:1005.4269 [INSPIRE].
H. Davoudiasl, J.L. Hewett and T.G. Rizzo, Bulk gauge fields in the Randall-Sundrum model, Phys. Lett. B 473 (2000) 43 [hep-ph/9911262] [ INSPIRE ].
S.J. Huber and Q. Shafi, Higgs mechanism and bulk gauge boson masses in the Randall-Sundrum model, Phys. Rev. D 63 (2001) 045010 [hep-ph/0005286] [ INSPIRE ].
H. Davoudiasl, B. Lillie and T.G. Rizzo, Off-the-wall Higgs in the universal Randall-Sundrum model, JHEP 08 (2006) 042 [hep-ph/0508279] [ INSPIRE ].
G. Cacciapaglia, C. Csáki, G. Marandella and J. Terning, The Gaugephobic Higgs, JHEP 02 (2007)036 [hep-ph/0611358] [ INSPIRE ].
S. Chang, J. Hisano, H. Nakano, N. Okada and M. Yamaguchi, Bulk standard model in the Randall-Sundrum background, Phys. Rev. D 62 (2000) 084025 [hep-ph/9912498] [ INSPIRE ].
M.E. Peskin and T. Takeuchi, Estimation of oblique electroweak corrections, Phys. Rev. D 46 (1992)381 [INSPIRE].
K. Agashe, A. Delgado, M.J. May and R. Sundrum, RS1, custodial isospin and precision tests, JHEP 08 (2003) 050 [hep-ph/0308036] [ INSPIRE ].
M.S. Carena, E. Ponton, J. Santiago and C.E.M. Wagner, Electroweak constraints on warped models with custodial symmetry, Phys. Rev. D 76 (2007) 035006 [hep-ph/0701055] [INSPIRE].
S. Casagrande, F. Goertz, U. Haisch, M. Neubert and T. Pfoh, The custodial Randall-Sundrum model: from precision tests to Higgs physics, JHEP 09 (2010) 014 [arXiv:1005.4315] [INSPIRE]
A. Falkowski and M. Pérez-Victoria, Electroweak Breaking on a Soft Wall, JHEP 12 (2008) 107 [arXiv:0806.1737] [INSPIRE]
J.A. Cabrer, G. von Gersdorff and M. Quirós, Warped Electroweak Breaking Without Custodial Symmetry, Phys. Lett. B 697 (2011) 208 [arXiv:1011.2205] [INSPIRE]
J.A. Cabrer, G. von Gersdorff and M. Quirós, Suppressing Electroweak Precision Observables in 5D Warped Models, JHEP 05 (2011) 083 [arXiv:1103.1388] [INSPIRE]
J.A. Cabrer, G. von Gersdorff and M. Quirós, Warped 5D Standard Model Consistent with EWPT, Fortsch. Phys. 59 (2011) 1135 [arXiv:1104.5253] [INSPIRE]
A. Carmona, E. Ponton and J. Santiago, Phenomenology of Non-Custodial Warped Models, JHEP 10 (2011) 137 [arXiv:1107.1500] [INSPIRE]
M.S. Carena, E. Ponton, T.M.P. Tait and C.E.M. Wagner, Opaque branes in warped backgrounds, Phys. Rev. D 67 (2003) 096006 [hep-ph/0212307] [ INSPIRE ].
P.R. Archer and S.J. Huber, Reducing Constraints in a Higher Dimensional Extension of the Randall and Sundrum Model, JHEP 03 (2011) 018 [arXiv:1010.3588] [INSPIRE]
P.R. Archer and S.J. Huber, Electroweak Constraints on Warped Geometry in Five Dimensions and Beyond, JHEP 10 (2010) 032 [arXiv:1004.1159] [INSPIRE]
M.E. Peskin, Comparison of LHC and ILC Capabilities for Higgs Boson Coupling Measurements, arXiv:1207.2516 [INSPIRE].
D.M. Asner, T. Barklow, C. Calancha, K. Fujii, N. Graf et al., ILC Higgs White Paper, arXiv:1310.0763 [INSPIRE].
H. Baer, T. Barklow, K. Fujii, Y. Gao, A. Hoang et al., The International Linear Collider Technical Design Report — Volume 2: physics, arXiv:1306.6352 [INSPIRE].
L. Linssen, A. Miyamoto, M. Stanitzki and H. Weerts, Physics and detectors at CLIC: CLIC conceptual design report, arXiv:1202.5940 [INSPIRE].
CLIC Physics Working Group, E. Accomando et al., Physics at the CLIC multi-TeV linear collider, hep-ph/0412251 [INSPIRE].
TLEP Design Study Working Group, M. Bicer et al., First Look at the Physics Case of TLEP, JHEP 01 (2014) 164 [arXiv:1308.6176] [ INSPIRE ].
CMS collaboration, Projected performance of an upgraded CMS detector at the LHC and HL-LHC: contribution to the Snowmass process, arXiv:1307.7135 [INSPIRE].
ATLAS collaboration, Physics at a high-luminosity LHC with ATLAS, arXiv:1307.7292 [INSPIRE].
F. del Aguila and J. Santiago, Large top mixing from extra dimensions, hep-ph/0011143 [INSPIRE].
H. Davoudiasl, J.L. Hewett and T.G. Rizzo, Phenomenology of the Randall-Sundrum gauge hierarchy model, Phys. Rev. Lett. 84 (2000) 2080 [hep-ph/9909255] [ INSPIRE ].
T. Gherghetta and A. Pomarol, A Warped supersymmetric standard model, Nucl. Phys. B 602 (2001)3 [hep-ph/0012378] [ INSPIRE ].
S.J. Huber and Q. Shafi, Cosmological constant, gauge hierarchy and warped geometry, Phys. Rev. D 68 (2003) 023503 [hep-ph/0207232] [ INSPIRE ].
P. Breitenlohner and D.Z. Freedman, Positive energy in anti-de Sitter backgrounds and gauged extended supergravity, Phys. Lett. B 115 (1982) 197 [INSPIRE]
C. Csáki, J. Hubisz and P. Meade, TASI lectures on electroweak symmetry breaking from extra dimensions, hep-ph/0510275 [INSPIRE].
T. Gherghetta, TASI Lectures on a Holographic View of Beyond the Standard Model Physics, arXiv:1008.2570 [INSPIRE].
Y. Grossman and M. Neubert, Neutrino masses and mixings in nonfactorizable geometry, Phys. Lett. B 474 (2000) 361 [hep-ph/9912408] [ INSPIRE ].
P.R. Archer, The fermion mass hierarchy in models with warped extra dimensions and a bulk Higgs, JHEP 09 (2012) 095 [arXiv:1204.4730] [INSPIRE]
A. Azatov, M. Toharia and L. Zhu, Higgs mediated FCNC’s in warped extra dimensions, Phys. Rev. D 80 (2009) 035016 [arXiv:0906.1990] [INSPIRE]
ATLAS collaboration, Constraints on New Phenomena via Higgs Coupling Measurements with the ATLAS Detector, ATLAS-CONF-2014-010.
A. Delgado and A. Falkowski, Electroweak observables in a general 5D background, JHEP 05 (2007)097 [hep-ph/0702234] [ INSPIRE ].
S.J. Huber, Flavor violation and warped geometry, Nucl. Phys. B 666 (2003) 269 [hep-ph/0303183] [INSPIRE].
M. Baak, M. Goebel, J. Haller, A. Hoecker, D. Kennedy et al., The Electroweak Fit of the Standard Model after the Discovery of a New Boson at the LHC, Eur. Phys. J. C 72 (2012) 2205 [arXiv:1209.2716] [INSPIRE]
Fichet and G. von Gersdorff, Anomalous gauge couplings from composite Higgs and warped extra dimensions, JHEP 03 (2014) 102 [arXiv:1311.6815] [INSPIRE]
P.R. Archer, M.S. Carena, A. Carmona and M. Neubert, Higgs Production and Decay in Models of a Warped Extra Dimension with a Bulk Higgs, JHEP 01 (2015) 060 [arXiv:1408.5406] [INSPIRE]
R. Barbieri, A. Pomarol, R. Rattazzi and A. Strumia, Electroweak symmetry breaking after LEP-1 and LEP-2, Nucl. Phys. B 703 (2004) 127 [hep-ph/0405040] [ INSPIRE ].
M. Frank, N. Pourtolami and M. Toharia, Higgs bosons in warped space, from the bulk to the brane, Phys. Rev. D 87 (2013) 096003 [arXiv:1301.7692] [INSPIRE]
S. Casagrande, F. Goertz, U. Haisch, M. Neubert and T. Pfoh, Flavor physics in the Randall-Sundrum model: I. Theoretical setup and electroweak precision tests, JHEP 10 (2008)094 [arXiv:0807.4937] [ INSPIRE ].
A.J. Buras, B. Duling and S. Gori, The impact of Kaluza-Klein fermions on standard model fermion couplings in a RS model with custodial protection, JHEP 09 (2009) 076 [arXiv:0905.2318] [INSPIRE]
M. Beneke, P. Moch and J. Rohrwild, Muon anomalous magnetic moment and penguin loops in warped extra dimensions, Int. J. Mod. Phys. A 29 (2014) 1444011 [arXiv:1404.7157] [INSPIRE]
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Dillon, B.M., Huber, S.J. Non-custodial warped extra dimensions at the LHC?. J. High Energ. Phys. 2015, 66 (2015). https://doi.org/10.1007/JHEP06(2015)066
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DOI: https://doi.org/10.1007/JHEP06(2015)066