Searching in CMS open data for dimuon resonances with substantial transverse momentum

We study dimuon events in 2.11/fb of 7 TeV pp collisions, using CMS Open Data, and search for a narrow dimuon resonance with moderate mass (14-66 GeV) and substantial transverse momentum (pT). Applying dimuon pT cuts of 25 GeV and 60 GeV, we explore two overlapping samples: one with isolated muons, and one with prompt muons without an isolation requirement. Using the latter sample requires information about detector effects and QCD backgrounds, which we obtain directly from the CMS Open Data. We present model-independent limits on the product of cross section, branching fraction, acceptance, and efficiencies. These limits are stronger, relative to a corresponding inclusive search without a pT cut, by factors of as much as nine. Our "pT-enhanced" dimuon search strategy provides improved sensitivity to models in which a new particle is produced mainly in the decay of something heavier, as could occur, for example, in decays of the Higgs boson or of a TeV-scale top partner. An implementation of this method with the current 13 TeV data should improve the sensitivity to such signals further by roughly an order of magnitude.

[1]  Aaas News,et al.  Book Reviews , 1893, Buffalo Medical and Surgical Journal.

[2]  V. M. Ghete,et al.  A search for pair production of new light bosons decaying into muons in proton-proton collisions at 13 TeV , 2019 .

[3]  Hoang Dai Nghia Nguyen,et al.  Search for Higgs boson decays into a pair of light bosons in the bbμμ final state in pp collision at √s=13TeV with the ATLAS detector , 2019 .

[4]  M. Vysotsky,et al.  Dimuon Resonance Near 28 GeV and the Muon Anomaly , 2019, JETP Letters.

[5]  Barnabás Póczos,et al.  End-to-End Jet Classification of Quarks and Gluons with the CMS Open Data , 2019, ArXiv.

[6]  V. M. Ghete,et al.  Search for the Higgs Boson Decaying to Two Muonsin Proton-Proton Collisions at ffiffis p = 13 TeV , 2019 .

[7]  G. Rupp,et al.  Dimuon enhancement at 28 GeV and tentative (pseudo)scalar partner of the Z boson at 57.5 GeV , 2018, 1811.02274.

[8]  X. C. Vidal,et al.  New axion searches at flavor factories , 2018, Journal of High Energy Physics.

[9]  M. Vysotsky,et al.  Dimuon Resonance Near 28 GeV and the Muon Anomaly , 2018, JETP Letters.

[10]  V. M. Ghete,et al.  Search for resonances in the mass spectrum of muon pairs produced in association with b quark jets in proton-proton collisions at s=8$$ \sqrt{s}=8 $$ and 13 TeV , 2018, Journal of High Energy Physics.

[11]  Barnabás Póczos,et al.  End-to-End Physics Event Classification with the CMS Open Data: Applying Image-based Deep Learning on Detector Data to Directly Classify Collision Events at the LHC , 2018, ArXiv.

[12]  C. Collaboration.  Search for the Higgs boson decaying to two muons in proton-proton collisions at $\sqrt{s} =$ 13 TeV , 2018, 1807.06325.

[13]  Atlas Collaboration.  Search for Higgs boson decays into a pair of light bosons in the bbμμ final state in pp collision at s=13TeV with the ATLAS detector , 2018, Physics Letters B.

[14]  L. A. Granado Cardoso,et al.  Search for a dimuon resonance in the ϒ mass region , 2018, Journal of High Energy Physics.

[15]  B. Nachman,et al.  Anomaly Detection for Resonant New Physics with Machine Learning. , 2018, Physical review letters.

[16]  M. Campanelli,et al.  Jet substructure at the Large Hadron Collider , 2018, Reviews of Modern Physics.

[17]  Martin Bauer,et al.  Hunting all the hidden photons , 2018, Journal of High Energy Physics.

[18]  J. A. Aguilar-Saavedra.  Running bumps from stealth bosons , 2018, 1801.08129.

[19]  Wei Xue,et al.  Serendipity in dark photon searches , 2018, Journal of High Energy Physics.

[20]  C Bozzi,et al.  Search for Dark Photons Produced in 13 TeV pp Collisions. , 2017, Physical review letters.

[21]  B. Nachman,et al.  Jet substructure at the Large Hadron Collider: A review of recent advances in theory and machine learning , 2017, Physics Reports.

[22]  J. A. Aguilar-Saavedra,et al.  A generic anti-QCD jet tagger , 2017, 1709.01087.

[23]  L. F. Chaparro Sierra,et al.  Search for Evidence of the Type-III Seesaw Mechanism in Multilepton Final States in Proton-Proton Collisions at sqrt[s]=13  TeV. , 2017, Physical review letters.

[24]  Lara Lloret Iglesias,et al.  Application of a Convolutional Neural Network for image classification to the analysis of collisions in High Energy Physics , 2017, EPJ Web of Conferences.

[25]  M. P. Casado,et al.  Search for the Dimuon Decay of the Higgs Boson in pp Collisions at sqrt[s]=13  TeV with the ATLAS Detector. , 2017, Physical review letters.

[26]  A. Iyer,et al.  A framework for finding anomalous objects at the LHC , 2017, Nuclear Physics B.

[27]  J. Kile,et al.  Localized 4σ and 5σ dijet mass excesses in ALEPH LEP2 four-jet events , 2017, Journal of High Energy Physics.

[28]  J. Kile,et al.  Monte Carlo Tuning for $e^+e^-\to$ Hadrons and Comparison with Unfolded LEP Data , 2017, 1706.02242.

[29]  J. A. Aguilar-Saavedra.  Stealth multiboson signals , 2017, 1705.07885.

[30]  M. Williams,et al.  A novel approach to the bias-variance problem in bump hunting , 2017, 1705.03578.

[31]  Wei Xue,et al.  Jet Substructure Studies with CMS Open Data , 2017, 1704.05842.

[32]  A. Tripathee,et al.  Exposing the QCD Splitting Function with CMS Open Data. , 2017, Physical review letters.

[33]  V. M. Ghete,et al.  Search for new phenomena with multiple charged leptons in proton–proton collisions at $$\sqrt{s}= 13$$s=13$$\,\text {TeV}$$TeV , 2017 .

[34]  C. Collaboration,et al.  Search for supersymmetry with multiple charged leptons in proton-proton collisions at sqrt(s) = 13 TeV , 2017, 1701.06940.

[35]  T. Tuuva,et al.  Search for light bosons in decays of the 125 GeV Higgs boson in proton-proton collisions at s=8$$ \sqrt{s}=8 $$ TeV , 2017 .

[36]  C. Collaboration,et al.  Search for light bosons in decays of the 125 GeV Higgs boson in proton-proton collisions at sqrt(s) = 8 TeV , 2017, 1701.02032.

[37]  Enectali Figueroa-Feliciano,et al.  Dark Sectors 2016 Workshop: Community Report , 2016, 1608.08632.

[38]  Wei Xue,et al.  Proposed Inclusive Dark Photon Search at LHCb. , 2016, Physical review letters.

[39]  Frank Taylor,et al.  A search for prompt lepton-jets in pp collisions at √s = 8 TeV with the ATLAS detector , 2016 .

[40]  C. Collaboration,et al.  A search for pair production of new light bosons decaying into muons in proton-proton collisions at 13  TeV , 2015, Physics Letters B.

[41]  M. Williams,et al.  Searching for a particle of unknown mass and lifetime in the presence of an unknown non-monotonic background , 2015, 1503.04767.

[42]  D. Curtin,et al.  Illuminating dark photons with high-energy colliders , 2014, 1412.0018.

[43]  D. Leith,et al.  Search for a Dark Photon ine+e-Collisions atBaBar , 2014, 1406.2980.

[44]  Peter Skands,et al.  An introduction to PYTHIA 8.2 , 2014, Comput. Phys. Commun..

[45]  G. Samach,et al.  Searching for dilepton resonances below theZmass at the LHC , 2014, 1408.1075.

[46]  M. Z. Mehta,et al.  Measurement of the differential and double-differential Drell-Yan cross sections in proton-proton collisions at $ \sqrt{s} $ = 7 TeV , 2013 .

[47]  S. Chatrchyan.  Search for a non-standard-model Higgs boson decaying to a pair of new light , 2013 .

[48]  Michael J. Pivovaroff,et al.  Working Group Report: New Light Weakly Coupled Particles , 2013 .

[49]  K. Cranmer,et al.  Erratum to: Asymptotic formulae for likelihood-based tests of new physics , 2013 .

[50]  The Cms Collaboration,et al.  The performance of the CMS muon detector in proton-proton collisions at sqrt(s) = 7 TeV at the LHC , 2013, 1306.6905.

[51]  Antunes,et al.  The performance of the CMS muon detector in proton-proton collisions at sqrt(s) = 7 TeV at the LHC , 2013 .

[52]  G. Bruno,et al.  Search for anomalous production of highly boosted Z bosons decaying to mu(+)mu(-) in proton-proton collisions at root s=7 TeV , 2013 .

[53]  C. Collaboration,et al.  Search for a non-standard-model Higgs boson decaying to a pair of new light bosons in four-muon final states , 2012, 1210.7619.

[54]  S. D. Ellis,et al.  Phenomenology of photon-jets , 2012, 1210.3657.

[55]  C. Collaboration,et al.  Search for anomalous production of highly boosted Z bosons decaying to dimuons in proton-proton collisions at sqrt(s) = 7 TeV , 2012, 1210.0867.

[56]  P. D. Luckey,et al.  Performance of CMS muon reconstruction in pp collision events at √s = 7 TeV , 2012 .

[57]  C. Jessop,et al.  Performance of CMS muon reconstruction in pp collision events at sqrt(s) = 7 TeV , 2012 .

[58]  P. Draper,et al.  Diphotons from tetraphotons in the decay of a 125 GeV Higgs boson at the LHC , 2012, 1204.1061.

[59]  N. Toro,et al.  Multiphotons and photon jets from new heavy vector bosons , 2012, 1202.6377.

[60]  R. Field,et al.  Min-Bias and the Underlying Event at the LHC , 2011, 1202.0901.

[61]  T. Tuuva,et al.  Measurement of the inclusive W and Z production cross sections in pp collisions at $ \sqrt {s} = 7 $ TeV with the CMS experiment , 2011 .

[62]  The Cms Collaboration,et al.  Measurement of the Inclusive W and Z Production Cross Sections in pp Collisions at sqrt(s) = 7 TeV , 2011, 1107.4789.

[63]  F. Maltoni,et al.  MadGraph 5: going beyond , 2011, 1106.0522.

[64]  D. Volyanskyy,et al.  Measurements of Inclusive W and Z Cross Sections in pp Collisions at √ s = 7 TeV The CMS Collaboration , 2010 .

[65]  Ye Li,et al.  FEWZ 2.0: A code for hadronic Z production at next-to-next-to-leading order , 2010, Comput. Phys. Commun..

[66]  J. Zupan,et al.  Discovering Higgs boson decays to lepton jets at hadron colliders. , 2010, Physical review letters.

[67]  K. Cranmer,et al.  Asymptotic formulae for likelihood-based tests of new physics , 2010, 1007.1727.

[68]  E. Gross,et al.  Trial factors for the look elsewhere effect in high energy physics , 2010, 1005.1891.

[69]  J. Zupan,et al.  Hidden Higgs decaying to lepton jets , 2010, 1002.2952.

[70]  C. Cheung,et al.  Lepton jets in (supersymmetric) electroweak processes , 2009, 0909.0290.

[71]  P. Schuster,et al.  New Fixed-Target Experiments to Search for Dark Gauge Forces , 2009, 0906.0580.

[72]  M. Strassler,et al.  A pure-glue hidden valley I. States and decays , 2009, 0903.0883.

[73]  David E. Kaplan,et al.  Asymmetric Dark Matter , 2009, 0901.4117.

[74]  C. Cheung,et al.  Preprint typeset in JHEP style- PAPER VERSION Non-Abelian Dark Sectors and Their Collider Signatures , 2022 .

[75]  Douglas P. Finkbeiner,et al.  A theory of dark matter , 2008, 0810.0713.

[76]  Z. Si,et al.  Phenomenology of hidden valleys at hadron colliders , 2007, 0712.2041.

[77]  M. Pospelov,et al.  Secluded WIMP Dark Matter , 2007, 0711.4866.

[78]  R. S. Thorne,et al.  Parton distributions for the LHC , 2007, 0901.0002.

[79]  P. Fox,et al.  Visible cascade Higgs decays to four photons at hadron colliders. , 2006, Physical review letters.

[80]  M. Strassler,et al.  Echoes of a hidden valley at hadron colliders , 2006, hep-ph/0604261.

[81]  R. Harnik,et al.  Natural electroweak breaking from a mirror symmetry. , 2005, Physical review letters.

[82]  S. Mrenna,et al.  Pythia 6.3 physics and manual , 2003, hep-ph/0308153.

[83]  C. Yuan,et al.  Very light CP-odd scalar in the two-Higgs-doublet model , 2001, hep-ph/0103292.

[84]  G. Landsberg,et al.  Higgs boson decays to CP-odd scalars at the Fermilab Tevatron and beyond , 2000, hep-ph/0005308.

[85]  Zbigniew Was,et al.  The τ decay library TAUOLA, version 2.4 , 1993 .

[86]  B. Holdom.  Two U(1)'s and Epsilon Charge Shifts , 1986 .

[87]  S. Nussinov.  Technocosmology — could a technibaryon excess provide a “natural” missing mass candidate? , 1985 .

[88]  Peter Galison,et al.  Two Z's or not two Z's? , 1984 .

[89]  L. Okun.  LIMITS OF ELECTRODYNAMICS: PARAPHOTONS? , 1982 .

[90]  W. Hager,et al.  and s , 2019, Shallow Water Hydraulics.

[91]  G. Landsberg,et al.  1 3 1 M ay 2 00 0 Higgs Boson Decays to CP-odd Scalars at the Tevatron and Beyond , 2018 .

[92]  Castillo,et al.  Search for the Dimuon Decay of the Higgs Boson in pp Collisions at s=13TeV with the ATLAS Detector , 2018 .

[93]  R. Harnik,et al.  Natural electroweak breaking from a mirror symmetry. , 2005, Physical review letters.

[94]  W. Marsden.  I and J , 2012 .

[95]  M. Feindt,et al.  Measurements of inclusive W and Z cross sections in pp collisions at √ s = 1.96TeV , 2007 .

[96]  A. Dell'Acqua,et al.  Geant4 - A simulation toolkit , 2003 .