Abstract
The phase space of visible particles in missing energy events may have singularity structures. The singularity variables are devised to capture the singularities effectively for given event topology. They can greatly improve the discovery potential of new physics signals as well as to extract the mass spectrum information at hadron colliders. Focusing on the antler decay topology of resonance, we derive a novel singularity variable whose distribution has endpoints directly correlated with the resonance mass. As a practical application, we examine the applicability of the singularity variable to the searches for heavy neutral Higgs bosons in the two-Higgs doublet model.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
A.J. Barr and C.G. Lester, A review of the mass measurement techniques proposed for the Large Hadron Collider, J. Phys. G 37 (2010) 123001 [arXiv:1004.2732] [INSPIRE].
A.J. Barr et al., Guide to transverse projections and mass-constraining variables, Phys. Rev. D 84 (2011) 095031 [arXiv:1105.2977] [INSPIRE].
I.-W. Kim, Algebraic singularity method for mass measurement with missing energy, Phys. Rev. Lett. 104 (2010) 081601 [arXiv:0910.1149] [INSPIRE].
K.T. Matchev and P. Shyamsundar, Singularity variables for missing energy event kinematics, JHEP 04 (2020) 027 [arXiv:1911.01913] [INSPIRE].
T. Han, I.-W. Kim and J. Song, Kinematic cusps: determining the missing particle mass at colliders, Phys. Lett. B 693 (2010) 575 [arXiv:0906.5009] [INSPIRE].
T. Han, I.-W. Kim and J. Song, Kinematic cusps with two missing particles I: antler decay topology, Phys. Rev. D 87 (2013) 035003 [arXiv:1206.5633] [INSPIRE].
T. Han, I.-W. Kim and J. Song, Kinematic cusps with two missing particles II: cascade decay topology, Phys. Rev. D 87 (2013) 035004 [arXiv:1206.5641] [INSPIRE].
A. Djouadi, The anatomy of electro-weak symmetry breaking. II. The Higgs bosons in the minimal supersymmetric model, Phys. Rept. 459 (2008) 1 [hep-ph/0503173] [INSPIRE].
G.C. Branco, P.M. Ferreira, L. Lavoura, M.N. Rebelo, M. Sher and J.P. Silva, Theory and phenomenology of two-Higgs-doublet models, Phys. Rept. 516 (2012) 1 [arXiv:1106.0034] [INSPIRE].
P. Langacker, The physics of heavy Z′ gauge bosons, Rev. Mod. Phys. 81 (2009) 1199 [arXiv:0801.1345] [INSPIRE].
S. Kanemura, M. Kikuchi, K. Yagyu and H. Yokoya, Bounds on the mass of doubly-charged Higgs bosons in the same-sign diboson decay scenario, Phys. Rev. D 90 (2014) 115018 [arXiv:1407.6547] [INSPIRE].
A. Rujula and A. Galindo, Measuring the W -boson mass at a hadron collider: a study of phase-space singularity methods, JHEP 08 (2011) 023 [arXiv:1106.0396] [INSPIRE].
A. De Rujula and A. Galindo, Singular ways to search for the Higgs boson, JHEP 06 (2012) 091 [arXiv:1202.2552] [INSPIRE].
C.B. Park, mantler: reconstructing heavy resonances in the antler decay topology using the singularity variable, https://github.com/cbpark/mantler, (2020).
C.B. Park, MAT: a C++ implementation of mantler, https://github.com/cbpark/MAT, (2020).
ALICE collaboration, Strange particle production in proton-proton collisions at \( \sqrt{s} \) = 0.9 TeV with ALICE at the LHC, Eur. Phys. J. C 71 (2011) 1594 [arXiv:1012.3257] [INSPIRE].
CMS collaboration, Combined measurements of Higgs boson couplings in proton-proton collisions at \( \sqrt{s} \) = 13 TeV, Eur. Phys. J. C 79 (2019) 421 [arXiv:1809.10733] [INSPIRE].
ATLAS collaboration, Combined measurements of Higgs boson production and decay using up to 80 fb−1 of proton-proton collision data at \( \sqrt{s} \) = 13 TeV collected with the ATLAS experiment, Phys. Rev. D 101 (2020) 012002 [arXiv:1909.02845] [INSPIRE].
B. Grzadkowski, H.E. Haber, O.M. Ogreid and P. Osland, Heavy Higgs boson decays in the alignment limit of the 2HDM, JHEP 12 (2018) 056 [arXiv:1808.01472] [INSPIRE].
ATLAS collaboration, Search for \( t\overline{t} \) resonances in fully hadronic final states in pp collisions at \( \sqrt{s} \) = 13 TeV with the ATLAS detector, arXiv:2005.05138 [INSPIRE].
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].
CMS collaboration, Search for heavy Higgs bosons decaying to a top quark pair in proton-proton collisions at \( \sqrt{s} \) = 13 TeV, JHEP 04 (2020) 171 [arXiv:1908.01115] [INSPIRE].
CMS collaboration, Measurement of the differential cross section for top quark pair production in pp collisions at \( \sqrt{s} \) = 8 TeV, Eur. Phys. J. C 75 (2015) 542 [arXiv:1505.04480] [INSPIRE].
F. Kling, S. Su and W. Su, 2HDM neutral scalars under the LHC, JHEP 06 (2020) 163 [arXiv:2004.04172] [INSPIRE].
T. Sjöstrand et al., An introduction to PYTHIA 8.2, Comput. Phys. Commun. 191 (2015) 159 [arXiv:1410.3012] [INSPIRE].
A. Buckley et al., LHAPDF6: parton density access in the LHC precision era, Eur. Phys. J. C 75 (2015) 132 [arXiv:1412.7420] [INSPIRE].
NNPDF collaboration, Parton distributions for the LHC run II, JHEP 04 (2015) 040 [arXiv:1410.8849] [INSPIRE].
W.S. Cho, K. Choi, Y.G. Kim and C.B. Park, MT2 -assisted on-shell reconstruction of missing momenta and its application to spin measurement at the LHC, Phys. Rev. D 79 (2009) 031701 [arXiv:0810.4853] [INSPIRE].
K. Choi, S. Choi, J.S. Lee and C.B. Park, Reconstructing the Higgs boson in dileptonic W decays at hadron collider, Phys. Rev. D 80 (2009) 073010 [arXiv:0908.0079] [INSPIRE].
K. Choi, J.S. Lee and C.B. Park, Measuring the Higgs boson mass with transverse mass variables, Phys. Rev. D 82 (2010) 113017 [arXiv:1008.2690] [INSPIRE].
C.B. Park, Reconstructing the heavy resonance at hadron colliders, Phys. Rev. D 84 (2011) 096001 [arXiv:1106.6087] [INSPIRE].
W.S. Cho et al., On-shell constrained M2 variables with applications to mass measurements and topology disambiguation, JHEP 08 (2014) 070 [arXiv:1401.1449] [INSPIRE].
C.G. Lester and D.J. Summers, Measuring masses of semiinvisibly decaying particles pair produced at hadron colliders, Phys. Lett. B 463 (1999) 99 [hep-ph/9906349] [INSPIRE].
A. Barr, C. Lester and P. Stephens, mT2 : the truth behind the glamour, J. Phys. G 29 (2003) 2343 [hep-ph/0304226] [INSPIRE].
K. Choi, D. Guadagnoli and C.B. Park, Reducing combinatorial uncertainties: a new technique based on MT2 variables, JHEP 11 (2011) 117 [arXiv:1109.2201] [INSPIRE].
D. Debnath, D. Kim, J.H. Kim, K. Kong and K.T. Matchev, Resolving combinatorial ambiguities in dilepton \( t\overline{t} \) event topologies with constrained M2 variables, Phys. Rev. D 96 (2017) 076005 [arXiv:1706.04995] [INSPIRE].
M. Cacciari, G.P. Salam and G. Soyez, FastJet user manual, Eur. Phys. J. C 72 (2012) 1896 [arXiv:1111.6097] [INSPIRE].
M. Cacciari, G.P. Salam and G. Soyez, The anti-kt jet clustering algorithm, JHEP 04 (2008) 063 [arXiv:0802.1189] [INSPIRE].
DELPHES 3 collaboration, DELPHES 3, a modular framework for fast simulation of a generic collider experiment, JHEP 02 (2014) 057 [arXiv:1307.6346] [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
Publisher’s Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
ArXiv ePrint: 2005.12297
Rights and permissions
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.
About this article
Cite this article
Park, C.B. A singular way to search for heavy resonances in missing energy events. J. High Energ. Phys. 2020, 89 (2020). https://doi.org/10.1007/JHEP07(2020)089
Received:
Revised:
Accepted:
Published:
DOI: https://doi.org/10.1007/JHEP07(2020)089