Boosting sensitivity to new physics with unsupervised anomaly detection in dijet resonance search

Enhancing dijet resonance searches, crucial for uncovering new physics at hadron colliders, poses challenges with increasing luminosities. Traditional methods struggle to capture complex backgrounds accurately. We propose an innovative approach utilizing unsupervised anomaly detection. By filtering out background-related events, this technique enhances sensitivity to potential signals. Simulations demonstrate improved performance over conventional methods. Our findings open doors for more effective searches for new physics in high-energy collider experiments.

[1]  S. Chekanov,et al.  Event-Based Anomaly Detection for Searches for New Physics , 2021, Universe.

[2]  M. Pierini,et al.  The Dark Machines Anomaly Score Challenge: Benchmark Data and Model Independent Event Classification for the Large Hadron Collider , 2021, SciPost Physics.

[3]  S. Chekanov,et al.  Machine Learning Using Rapidity-Mass Matrices for Event Classification Problems in HEP , 2018, Universe.

[4]  C. Collaboration,et al.  Search for narrow and broad dijet resonances in proton-proton collisions at $\sqrt{s}=$ 13 TeV and constraints on dark matter mediators and other new particles , 2018, 1806.00843.

[5]  S. Chekanov,et al.  Imaging particle collision data for event classification using machine learning , 2018, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment.

[6]  D. Amidei,et al.  Functional Decomposition: A new method for search and limit setting , 2018, 1805.04536.

[7]  J. T. Childers,et al.  Precision searches in dijets at the HL-LHC and HE-LHC , 2017, 1710.09484.

[8]  B. Isildak Search for narrow resonances in dijet final states at s=8 TeV with the novel CMS technique of data scouting , 2017 .

[9]  Yuan Yu,et al.  TensorFlow: A system for large-scale machine learning , 2016, OSDI.

[10]  S. M. Etesami,et al.  Search for Narrow Resonances Decaying to Dijets in Proton-Proton Collisions at √[s]=13  TeV. , 2015, Physical review letters.

[11]  Atlas Collaboration,et al.  Performance of b-jet identification in the ATLAS experiment , 2015, 1512.01094.

[12]  Atlas Collaboration Search for New Phenomena in Dijet Angular Distributions in Proton-Proton Collisions at $\sqrt{s} = 8$ TeV Measured with the ATLAS Detector , 2015, 1504.00357.

[13]  S. Lloyd,et al.  LHAPDF6: parton density access in the LHC precision era , 2014, The European Physical Journal C.

[14]  J. Latorre,et al.  Parton distributions for the LHC run II , 2014, 1410.8849.

[15]  J. Jia,et al.  Measurement of Event Plane Correlations in Pb-Pb Collisions at $\sqrt{s_{\mathrm{NN}}}$=2.76 TeV with the ATLAS Detector , 2012, 1208.1427.

[16]  S. Forte,et al.  Parton distributions with LHC data , 2012, 1207.1303.

[17]  M. Cacciari,et al.  FastJet user manual , 2011, 1111.6097.

[18]  S. Chekanov,et al.  A non-parametric peak finder algorithm and its application in searches for new physics , 2011 .

[19]  P. D. Luckey,et al.  Search for resonances in the dijet mass spectrum from 7 TeV pp collisions at CMS , 2011 .

[20]  The Atlas Collaboration,et al.  A search for new physics in dijet mass and angular distributions in pp collisions at (square root)s=7TeV measured with the ATLAS detector , 2011, 1103.3864.

[21]  Georgios Choudalakis,et al.  On hypothesis testing, trials factor, hypertests and the BumpHunter , 2011, 1101.0390.

[22]  Amit Kumar Srivastava,et al.  Search for Dijet Resonances in 7 TeV pp Collisions at CMS , 2010, 1010.0203.

[23]  J. T. Childers,et al.  Search for New Particles in Two-Jet Final States in 7 TeV Proton-Proton Collisions with the ATLAS Detector at the LHC , 2010, 1008.2461.

[24]  et al,et al.  Measurement of Dijet Angular Distributions at s=1.96TeV and Searches for Quark Compositeness and Extra Spatial Dimensions , 2009, 0906.4819.

[25]  M. Cacciari,et al.  The anti-$k_t$ jet clustering algorithm , 2008, 0802.1189.

[26]  Peter Skands,et al.  A brief introduction to PYTHIA 8.1 , 2007, Comput. Phys. Commun..

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

[28]  A. Ribon,et al.  Measurement of Dijet Angular Distributions at CDF , 1996, hep-ex/9609011.

[29]  I. Hinchliffe,et al.  EXCITED QUARK PRODUCTION AT HADRON COLLIDERS , 1987 .

[30]  G. Cowan Discovery sensitivity for a counting experiment with background uncertainty , 2012 .

[31]  M. Feindt,et al.  (cdf Collaboration , 2022 .

[32]  Albert Y. Kim,et al.  Hypothesis Testing , 2019, Encyclopedic Dictionary of Archaeology.