Abstract
If kinematically accessible, hadron collider experiments provide an ideal laboratory for the direct production of heavy lepton partners in Seesaw models. In the context of the Type III Seesaw Mechanism, the \( \mathcal{O}\left({\alpha}_s\right) \) rate and shape corrections are presented for the pair production of hypothetical, heavy SU(2) L triplet leptons in pp collisions at \( \sqrt{s} \) = 13, 14 and 100TeV. The next-to-leading order (NLO) K-factors span, approximately, K NLO = 1.1 − 1.4 for both charged current and neutral current processes over a triplet mass range m T = 100 GeV − 2 TeV. Total production cross sections exhibit a + 5 %− 6 % scale dependence at 14 TeV and ±1% at 100 TeV. The NLO differential K-factors for heavy lepton kinematics are largely flat, suggesting that na¨ıve scaling by the total K NLO is reasonably justified. The resummed transverse momentum distribution of the dilepton system is presented at leading logarithmic (LL) accuracy. The effects of resummation are large in TeV-scale dilepton systems. Discovery potential to heavy lepton pairs at 14 and 100 TeV is briefly explored: at the High-Luminosity LHC, we estimate a 4.8 − 6.3σ discovery potential maximally for m T = 1.5 − 1.6 TeV after 3000 fb−1. With 300 (3000) fb−1, there is 2σ sensitivity up to m T = 1.3 − 1.4 TeV (1.7 − 1.8 TeV) in the individual channels. At 100 TeV and with 10 fb−1, a 5σ discovery can be achieved for m T = 1.4 − 1.6 TeV. Due to the factorization properties of Drell-Yan-type systems, the fixed order and resummed calculations reduce to convolutions over tree-level quantities.
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References
E. Ma, Pathways to naturally small neutrino masses, Phys. Rev. Lett. 81 (1998) 1171 [hep-ph/9805219] [INSPIRE].
P. Minkowski, μ → eγ at a Rate of One Out of 109 Muon Decays?, Phys. Lett. B 67 (1977) 421 [INSPIRE].
R.N. Mohapatra and G. Senjanović, Neutrino Mass and Spontaneous Parity Violation, Phys. Rev. Lett. 44 (1980) 912 [INSPIRE].
T. Yanagida, Horizontal Symmetry And Masses Of Neutrinos, Conf. Proc. C 7902131 (1979) 95 [INSPIRE].
M. Gell-Mann, P. Ramond and R. Slansky, Complex Spinors and Unified Theories, Conf. Proc. C 790927 (1979) 315 [arXiv:1306.4669] [INSPIRE].
J. Schechter and J.W.F. Valle, Neutrino Masses in SU(2) × U(1) Theories, Phys. Rev. D 22 (1980) 2227 [INSPIRE].
R.E. Shrock, General Theory of Weak Leptonic and Semileptonic Decays. 1. Leptonic Pseudoscalar Meson Decays, with Associated Tests For and Bounds on, Neutrino Masses and Lepton Mixing, Phys. Rev. D 24 (1981) 1232 [INSPIRE].
M. Magg and C. Wetterich, Neutrino Mass Problem and Gauge Hierarchy, Phys. Lett. B 94 (1980) 61 [INSPIRE].
T.P. Cheng and L.-F. Li, Neutrino Masses, Mixings and Oscillations in SU(2) × U(1) Models of Electroweak Interactions, Phys. Rev. D 22 (1980) 2860 [INSPIRE].
G. Lazarides, Q. Shafi and C. Wetterich, Proton Lifetime and Fermion Masses in an SO(10) Model, Nucl. Phys. B 181 (1981) 287 [INSPIRE].
R.N. Mohapatra and G. Senjanović, Neutrino Masses and Mixings in Gauge Models with Spontaneous Parity Violation, Phys. Rev. D 23 (1981) 165 [INSPIRE].
R. Foot, H. Lew, X.G. He and G.C. Joshi, Seesaw Neutrino Masses Induced by a Triplet of Leptons, Z. Phys. C 44 (1989) 441 [INSPIRE].
V. Barger, D. Marfatia and K. Whisnant, Progress in the physics of massive neutrinos, Int. J. Mod. Phys. E 12 (2003) 569 [hep-ph/0308123] [INSPIRE].
A. Atre, T. Han, S. Pascoli and B. Zhang, The Search for Heavy Majorana Neutrinos, JHEP 05 (2009) 030 [arXiv:0901.3589] [INSPIRE].
M.-C. Chen and J. Huang, TeV Scale Models of Neutrino Masses and Their Phenomenology, Mod. Phys. Lett. A 26 (2011) 1147 [arXiv:1105.3188] [INSPIRE].
F.F. Deppisch, P.S. Bhupal Dev and A. Pilaftsis, Neutrinos and Collider Physics, New J. Phys. 17 (2015) 075019 [arXiv:1502.06541] [INSPIRE].
W.-Y. Keung and G. Senjanović, Majorana Neutrinos and the Production of the Right-handed Charged Gauge Boson, Phys. Rev. Lett. 50 (1983) 1427 [INSPIRE].
A. Pilaftsis, Radiatively induced neutrino masses and large Higgs neutrino couplings in the standard model with Majorana fields, Z. Phys. C 55 (1992) 275 [hep-ph/9901206] [INSPIRE].
A. Datta, M. Guchait and A. Pilaftsis, Probing lepton number violation via Majorana neutrinos at hadron supercolliders, Phys. Rev. D 50 (1994) 3195 [hep-ph/9311257] [INSPIRE].
T. Han and B. Zhang, Signatures for Majorana neutrinos at hadron colliders, Phys. Rev. Lett. 97 (2006) 171804 [hep-ph/0604064] [INSPIRE].
T.G. Rizzo, Doubly Charged Higgs Bosons and Lepton Number Violating Processes, Phys. Rev. D 25 (1982) 1355 [INSPIRE].
J.F. Gunion, C. Loomis and K.T. Pitts, Searching for doubly charged Higgs bosons at future colliders, eConf C 960625 (1996) LTH096 [hep-ph/9610237] [INSPIRE].
T.G. Rizzo and G. Senjanović, Grand Unification and Parity Restoration at Low-Energies. 1. Phenomenology, Phys. Rev. D 24 (1981) 704 [Erratum ibid. D 25 (1982) 1447] [INSPIRE].
P.S.B. Dev, A. Pilaftsis and U.-k. Yang, New Production Mechanism for Heavy Neutrinos at the LHC, Phys. Rev. Lett. 112 (2014) 081801 [arXiv:1308.2209] [INSPIRE].
D. Alva, T. Han and R. Ruiz, Heavy Majorana neutrinos from Wγ fusion at hadron colliders, JHEP 02 (2015) 072 [arXiv:1411.7305] [INSPIRE].
R.E. Ruiz, Hadron Collider Tests of Neutrino Mass-Generating Mechanisms, Ph.D. Thesis, University of Pittsburgh, Pittsburgh U.S.A. (2015) [arXiv:1509.06375].
M. Muhlleitner and M. Spira, A Note on doubly charged Higgs pair production at hadron colliders, Phys. Rev. D 68 (2003) 117701 [hep-ph/0305288] [INSPIRE].
Z. Sullivan, Fully differential W ′ production and decay at next-to-leading order in QCD, Phys. Rev. D 66 (2002) 075011 [hep-ph/0207290] [INSPIRE].
T. Jezo, M. Klasen, D.R. Lamprea, F. Lyonnet and I. Schienbein, NLO+NLL limits on W ′ and Z ′ gauge boson masses in general extensions of the Standard Model, JHEP 12 (2014) 092 [arXiv:1410.4692] [INSPIRE].
R. Gavin, Y. Li, F. Petriello and S. Quackenbush, FEWZ 2.0: A code for hadronic Z production at next-to-next-to-leading order, Comput. Phys. Commun. 182 (2011) 2388 [arXiv:1011.3540] [INSPIRE].
R. Gavin, Y. Li, F. Petriello and S. Quackenbush, W Physics at the LHC with FEWZ 2.1, Comput. Phys. Commun. 184 (2013) 208 [arXiv:1201.5896] [INSPIRE].
D. Binosi and L. Theussl, JaxoDraw: A Graphical user interface for drawing Feynman diagrams, Comput. Phys. Commun. 161 (2004) 76 [hep-ph/0309015] [INSPIRE].
K. Fabricius, I. Schmitt, G. Kramer and G. Schierholz, Higher Order Perturbative QCD Calculation of Jet Cross-Sections in e + e − Annihilation, Z. Phys. C 11 (1981) 315 [INSPIRE].
G. Kramer and B. Lampe, Jet Cross-Sections in e + e − Annihilation, Fortsch. Phys. 37 (1989) 161 [INSPIRE].
H. Baer, J. Ohnemus and J.F. Owens, A Next-To-Leading Logarithm Calculation of Jet Photoproduction, Phys. Rev. D 40 (1989) 2844 [INSPIRE].
B.W. Harris and J.F. Owens, The Two cutoff phase space slicing method, Phys. Rev. D 65 (2002) 094032 [hep-ph/0102128] [INSPIRE].
J.C. Collins and D.E. Soper, Back-To-Back Jets in QCD, Nucl. Phys. B 193 (1981) 381 [Erratum ibid. B 213 (1983) 545] [INSPIRE].
J.C. Collins and D.E. Soper, Back-To-Back Jets: Fourier Transform from B to K-Transverse, Nucl. Phys. B 197 (1982) 446 [INSPIRE].
J.C. Collins, D.E. Soper and G.F. Sterman, Transverse Momentum Distribution in Drell-Yan Pair and W and Z Boson Production, Nucl. Phys. B 250 (1985) 199 [INSPIRE].
R. Franceschini, T. Hambye and A. Strumia, Type-III see-saw at LHC, Phys. Rev. D 78 (2008) 033002 [arXiv:0805.1613] [INSPIRE].
F. del Aguila and J.A. Aguilar-Saavedra, Distinguishing seesaw models at LHC with multi-lepton signals, Nucl. Phys. B 813 (2009) 22 [arXiv:0808.2468] [INSPIRE].
A. Arhrib et al., Collider Signatures for Heavy Lepton Triplet in Type I+III Seesaw, Phys. Rev. D 82 (2010) 053004 [arXiv:0904.2390] [INSPIRE].
J.A. Aguilar-Saavedra, Heavy lepton pair production at LHC: Model discrimination with multi-lepton signals, Nucl. Phys. B 828 (2010) 289 [arXiv:0905.2221] [INSPIRE].
T. Li and X.-G. He, Neutrino Masses and Heavy Triplet Leptons at the LHC: Testability of Type III Seesaw, Phys. Rev. D 80 (2009) 093003 [arXiv:0907.4193] [INSPIRE].
P. Bandyopadhyay and E.J. Chun, Displaced Higgs production in type-III seesaw, JHEP 11 (2010) 006 [arXiv:1007.2281] [INSPIRE].
CMS collaboration, Search for heavy lepton partners of neutrinos in pp collisions at 8 TeV, in the context of type-III seesaw mechanism, CMS-PAS-EXO-14-001 (2015).
ATLAS collaboration, Search for type-III Seesaw heavy leptons in pp collisions at \( \sqrt{s}=8 \) TeV with the ATLAS Detector, Phys. Rev. D 92 (2015) 032001 [arXiv:1506.01839] [INSPIRE].
D. Pierce and A. Papadopoulos, Radiative corrections to neutralino and chargino masses in the minimal supersymmetric model, Phys. Rev. D 50 (1994) 565 [hep-ph/9312248] [INSPIRE].
M. Ibe, T. Moroi and T.T. Yanagida, Possible Signals of Wino LSP at the Large Hadron Collider, Phys. Lett. B 644 (2007) 355 [hep-ph/0610277] [INSPIRE].
H. Baer, B.W. Harris and M.H. Reno, Next-to-leading order slepton pair production at hadron colliders, Phys. Rev. D 57 (1998) 5871 [hep-ph/9712315] [INSPIRE].
P.B. Arnold and R.P. Kauffman, W and Z production at next-to-leading order: From large q(t) to small, Nucl. Phys. B 349 (1991) 381 [INSPIRE].
T. Han, R. Meng and J. Ohnemus, Transverse momentum distribution of Z boson pairs at hadron supercolliders, Nucl. Phys. B 384 (1992) 59 [INSPIRE].
T. Hahn, CUBA: A Library for multidimensional numerical integration, Comput. Phys. Commun. 168 (2005) 78 [hep-ph/0404043] [INSPIRE].
J. Alwall et al., A Standard format for Les Houches event files, Comput. Phys. Commun. 176 (2007) 300 [hep-ph/0609017] [INSPIRE].
A. Alloul, N.D. Christensen, C. Degrande, C. Duhr and B. Fuks, FeynRules 2.0 — A complete toolbox for tree-level phenomenology, Comput. Phys. Commun. 185 (2014) 2250 [arXiv:1310.1921] [INSPIRE].
N.D. Christensen and C. Duhr, FeynRules — Feynman rules made easy, Comput. Phys. Commun. 180 (2009) 1614 [arXiv:0806.4194] [INSPIRE].
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, JHEP 07 (2014) 079 [arXiv:1405.0301] [INSPIRE].
Particle Data Group collaboration, J. Beringer et al., Review of Particle Physics (RPP), Phys. Rev. D 86 (2012) 010001 [INSPIRE].
J.F. Owens, A. Accardi and W. Melnitchouk, Global parton distributions with nuclear and finite-Q 2 corrections, Phys. Rev. D 87 (2013) 094012 [arXiv:1212.1702] [INSPIRE].
R. Brock et al., Planning the Future of U.S. Particle Physics (Snowmass 2013): Chapter 3: Energy Frontier, arXiv:1401.6081 [INSPIRE].
G. Altarelli, R.K. Ellis and G. Martinelli, Large Perturbative Corrections to the Drell-Yan Process in QCD, Nucl. Phys. B 157 (1979) 461 [INSPIRE].
I. Hinchliffe and S.F. Novaes, On the Mean Transverse Momentum of Higgs Bosons at the SSC, Phys. Rev. D 38 (1988) 3475 [INSPIRE].
R.P. Kauffman, Higgs boson p T in gluon fusion, Phys. Rev. D 44 (1991) 1415 [INSPIRE].
C.T.H. Davies, B.R. Webber and W.J. Stirling, Drell-Yan Cross-Sections at Small Transverse Momentum, Nucl. Phys. B 256 (1985) 413 [INSPIRE].
F. Landry, R. Brock, G. Ladinsky and C.P. Yuan, New fits for the nonperturbative parameters in the CSS resummation formalism, Phys. Rev. D 63 (2001) 013004 [hep-ph/9905391] [INSPIRE].
F. Landry, R. Brock, P.M. Nadolsky and C.P. Yuan, Tevatron Run-1 Z boson data and Collins-Soper-Sterman resummation formalism, Phys. Rev. D 67 (2003) 073016 [hep-ph/0212159] [INSPIRE].
H.K. Dreiner, S. Grab, M. Krämer and M.K. Trenkel, Supersymmetric NLO QCD corrections to resonant slepton production and signals at the Tevatron and the CERN LHC, Phys. Rev. D 75 (2007) 035003 [hep-ph/0611195] [INSPIRE].
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ArXiv ePrint: 1509.05416
Address as of October 2015. (Institute for Particle Physics Phenomenology (IPPP), Department of Physics, Durham University, Durham, DH1 3LE, U.K.)
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Ruiz, R. QCD corrections to pair production of Type III Seesaw leptons at hadron colliders. J. High Energ. Phys. 2015, 1–29 (2015). https://doi.org/10.1007/JHEP12(2015)165
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DOI: https://doi.org/10.1007/JHEP12(2015)165