Abstract
Contact interactions are the low-energy footprints of New Physics, so ideally, constraints upon them should be as generic and model independent as possible. Hadron colliders search for four-quark contact interactions with incident valence quarks, and the LHC currently sets limits on a flavour sum (over uu, dd and ud) of selected interactions. We approximately translate these bounds to a more complete (and larger) set of dimension-six interactions of specified flavours. These estimates are obtained at the parton level, are mostly analytic and are less restrictive than the experimental bounds on flavour-summed interactions. The estimates may scale in a simple way to higher energy and luminosity.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
W. Buchmüller and D. Wyler, Effective Lagrangian Analysis of New Interactions and Flavor Conservation, Nucl. Phys. B 268 (1986) 621 [INSPIRE].
B. Grzadkowski, M. Iskrzynski, M. Misiak and J. Rosiek, Dimension-Six Terms in the Standard Model Lagrangian, JHEP 10 (2010) 085 [arXiv:1008.4884] [INSPIRE].
ATLAS collaboration, ATLAS search for new phenomena in dijet mass and angular distributions using pp collisions at \( \sqrt{s} \) = 7 TeV, JHEP 01 (2013) 029 [arXiv:1210.1718] [INSPIRE].
CMS collaboration, Search for quark compositeness in dijet angular distributions from pp collisions at \( \sqrt{s} \) = 7 TeV, JHEP 05 (2012) 055 [arXiv:1202.5535] [INSPIRE].
CMS collaboration, Search for contact interactions using the inclusive jet p T spectrum in pp collisions at \( \sqrt{s} \) = 7 TeV, Phys. Rev. D 87 (2013) 052017 [arXiv:1301.5023] [INSPIRE].
D0 collaboration, V.M. Abazov et al., Measurement of dijet angular distributions at \( \sqrt{s} \) = 1.96 TeV and searches for quark compositeness and extra spatial dimensions, Phys. Rev. Lett. 103 (2009) 191803 [arXiv:0906.4819] [INSPIRE].
M. Redi, V. Sanz, M. de Vries and A. Weiler, Strong Signatures of Right-Handed Compositeness, JHEP 08 (2013) 008 [arXiv:1305.3818] [INSPIRE].
R.S. Chivukula, E.H. Simmons and N. Vignaroli, A Flavorful Top-Coloron Model, Phys. Rev. D 87 (2013) 075002 [arXiv:1302.1069] [INSPIRE].
Y. Bai, J.L. Hewett, J. Kaplan and T.G. Rizzo, LHC Predictions from a Tevatron Anomaly in the Top Quark Forward-Backward Asymmetry, JHEP 03 (2011) 003 [arXiv:1101.5203] [INSPIRE].
U. Haisch and S. Westhoff, Massive Color-Octet Bosons: Bounds on Effects in Top-Quark Pair Production, JHEP 08 (2011) 088 [arXiv:1106.0529] [INSPIRE].
O. Domenech, A. Pomarol and J. Serra, Probing the SM with Dijets at the LHC, Phys. Rev. D 85 (2012) 074030 [arXiv:1201.6510] [INSPIRE].
M. Carpentier and S. Davidson, Constraints on two-lepton, two quark operators, Eur. Phys. J. C 70 (2010) 1071 [arXiv:1008.0280] [INSPIRE].
A.E. Nelson, Contact terms, compositeness and atomic parity violation, Phys. Rev. Lett. 78 (1997) 4159 [hep-ph/9703379] [INSPIRE].
J. Gao, C.S. Li, J. Wang, H.X. Zhu and C.-P. Yuan, Next-to-leading QCD effect to the quark compositeness search at the LHC, Phys. Rev. Lett. 106 (2011) 142001 [arXiv:1101.4611] [INSPIRE].
E. Eichten, K.D. Lane and M.E. Peskin, New Tests for Quark and Lepton Substructure, Phys. Rev. Lett. 50 (1983) 811 [INSPIRE].
T. Sjöstrand, S. Mrenna and P.Z. Skands, A Brief Introduction to PYTHIA 8.1, Comput. Phys. Commun. 178 (2008) 852 [arXiv:0710.3820] [INSPIRE].
T. Sjöstrand, S. Mrenna and P.Z. Skands, PYTHIA 6.4 Physics and Manual, JHEP 05 (2006) 026 [hep-ph/0603175] [INSPIRE].
H.-L. Lai et al., New parton distributions for collider physics, Phys. Rev. D 82 (2010) 074024 [arXiv:1007.2241] [INSPIRE].
L. Hartgring, E. Laenen and P. Skands, Antenna Showers with One-Loop Matrix Elements, JHEP 10 (2013) 127 [arXiv:1303.4974] [INSPIRE].
P. Skands, Talk on generator tuning Physics and Generator Tuning, CERN, October 18 (2013), http://skands.web.cern.ch/skands/slides/.
Particle Data Group collaboration, J. Beringer et al., Review of Particle Physics (RPP), Phys. Rev. D 86 (2012) 010001 [INSPIRE].
R.S. Chivukula, A.G. Cohen and E.H. Simmons, New strong interactions at the Tevatron?, Phys. Lett. B 380 (1996) 92 [hep-ph/9603311] [INSPIRE].
H. Potter and G. Valencia, Probing lepton gluonic couplings at the LHC, Phys. Lett. B 713 (2012) 95 [arXiv:1202.1780] [INSPIRE].
L. Apanasevich, S. Upadhyay, N. Varelas, D. Whiteson and F. Yu, Sensitivity of potential future pp colliders to quark compositeness, arXiv:1307.7149 [INSPIRE].
A.J. Buras, Weak Hamiltonian, CP-violation and rare decays, hep-ph/9806471 [INSPIRE].
UTfit collaboration, M. Bona et al., Model-independent constraints on ΔF = 2 operators and the scale of new physics, JHEP 03 (2008) 049 [arXiv:0707.0636] [INSPIRE].
G. Isidori, Y. Nir and G. Perez, Flavor Physics Constraints for Physics Beyond the Standard Model, Ann. Rev. Nucl. Part. Sci. 60 (2010) 355 [arXiv:1002.0900] [INSPIRE].
J. Charles, S. Descotes-Genon, Z. Ligeti, S. Monteil, M. Papucci and K. Trabelsi, Future sensitivity to new physics in B d , B s and K mixings, Phys. Rev. D 89 (2014) 033016 [arXiv:1309.2293] [INSPIRE].
J. Alwall, M. Herquet, F. Maltoni, O. Mattelaer and T. Stelzer, MadGraph 5: Going Beyond, JHEP 06 (2011) 128 [arXiv:1106.0522] [INSPIRE].
E. Argyres et al., Alternative symmetry breaking and exotica, CERN-TH-5980-91 (1991).
E. Eichten, I. Hinchliffe, K.D. Lane and C. Quigg, Super Collider Physics, Rev. Mod. Phys. 56 (1984) 579 [Addendum ibid. 58 (1986) 1065] [INSPIRE].
K.D. Lane, Electroweak and flavor dynamics at hadron colliders, hep-ph/9605257 [INSPIRE].
Open Access
This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
Author information
Authors and Affiliations
Corresponding author
Additional information
ArXiv ePrint: 1311.5981
Rights and permissions
Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
About this article
Cite this article
Davidson, S., Descotes-Genon, S. Constraining flavoured contact interactions at the LHC. J. High Energ. Phys. 2014, 66 (2014). https://doi.org/10.1007/JHEP05(2014)066
Received:
Revised:
Accepted:
Published:
DOI: https://doi.org/10.1007/JHEP05(2014)066