A strategy for a general search for new phenomena using data-derived signal regions and its application within the ATLAS experiment
M. AaboudFaculté des Sciences, Université Mohamed Premier and LPTPM, Oujda, MoroccoG. AadCPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, FranceBraden Keim AbbottHomer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, OK, USAO. AbdinovInstitute of Physics, Azerbaijan Academy of Sciences, Baku, AzerbaijanB. AbeloosLAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, Orsay, FranceHaider AbidiDepartment of Physics, University of Toronto, Toronto, ON, CanadaO. S. AbouZeidSanta Cruz Institute for Particle Physics, University of California Santa Cruz, Santa Cruz, CA, USAN. L. AbrahamDepartment of Physics and Astronomy, University of Sussex, Brighton, UKH. AbramowiczRaymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv, IsraelH. AbreuDepartment of Physics, Technion, Israel Institute of Technology, Haifa, IsraelY. AbulaitiHigh Energy Physics Division, Argonne National Laboratory, Argonne, IL, USAB. S. AcharyaINFN Gruppo Collegato di Udine, Sezione di Trieste, Udine, ItalyS. AdachiInternational Center for Elementary Particle Physics and Department of Physics, University of Tokyo, Tokyo, JapanL. AdamczykFaculty of Physics and Applied Computer Science, AGH University of Science and Technology, Kraków, PolandJahred AdelmanDepartment of Physics, Northern Illinois University, De Kalb, IL, USAM. AdersbergerFakultät für Physik, Ludwig-Maximilians-Universität München, Munich, GermanyTim AdyeParticle Physics Department, Rutherford Appleton Laboratory, Didcot, UKTony AffolderSanta Cruz Institute for Particle Physics, University of California Santa Cruz, Santa Cruz, CA, USAY. AfikDepartment of Physics, Technion, Israel Institute of Technology, Haifa, IsraelC. AgheorghieseiDepartment of Physics, Alexandru Ioan Cuza University of Iasi, Iasi, RomaniaJ. A. Aguilar–SaavedraLaboratório de Instrumentação e Física Experimental de Partículas-LIP, Lisbon, PortugalF. AhmadovJoint Institute for Nuclear Research, Dubna, RussiaGiulio AielliINFN Sezione di Roma Tor Vergata, Rome, ItalyS. AkatsukaFaculty of Science, Kyoto University, Kyoto, JapanTorsten AkessonFysiska institutionen, Lunds universitet, Lund, SwedenE. AkilliDépartement de Physique Nucléaire et Corpusculaire, Université de Genève, Geneva, SwitzerlandAndrei AkimovP.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, RussiaGian Luigi AlberghiDipartimento di Fisica e Astronomia, Università di Bologna, Bologna, ItalyJ. AlbertDepartment of Physics and Astronomy, University of Victoria, Victoria, BC, CanadaP. AlbicoccoINFN e Laboratori Nazionali di Frascati, Frascati, ItalyM. J. Alconada VerziniInstituto de Física La Plata, Universidad Nacional de La Plata and CONICET, La Plata, ArgentinaSara AlderweireldtInstitute for Mathematics, Astrophysics and Particle Physics, Radboud University Nijmegen/Nikhef, Nijmegen, The NetherlandsMartin AleksaCERN, Geneva, SwitzerlandI. N. AleksandrovJoint Institute for Nuclear Research, Dubna, RussiaC. AlexaHoria Hulubei National Institute of Physics and Nuclear Engineering, Bucharest, RomaniaG. AlexanderRaymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv, IsraelT. AlexopoulosPhysics Department, National Technical University of Athens, Zografou, GreeceMuhammad AlhroobHomer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, OK, USABabar AliII. Physikalisches Institut, Georg-August-Universität Göttingen, Göttingen, GermanyGianluca AlimontiINFN Sezione di Milano, Milan, ItalyJ. AlisonUniversity of ChicagoS. P. AlkireDepartment of Physics, University of Washington, Seattle, WA, USACorentin AllaireLAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, Orsay, FranceBenedict AllbrookeDepartment of Physics and Astronomy, University of Sussex, Brighton, UKB. W. AllenCenter for High Energy Physics, University of Oregon, Eugene, OR, USAPhilip Patrick AllportSchool of Physics and Astronomy, University of Birmingham, Birmingham, UKA. AloisioINFN Sezione di Napoli, Naples, ItalyA. AlonsoNiels Bohr Institute, University of Copenhagen, Copenhagen, DenmarkF. AlonsoInstituto de Física La Plata, Universidad Nacional de La Plata and CONICET, La Plata, ArgentinaCristiano AlpigianiDepartment of Physics, University of Washington, Seattle, WA, USAA. A. AlshehriSUPA-School of Physics and Astronomy, University of Glasgow, Glasgow, UKM. I. AlstatyCPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, FranceB. Álvarez GonzálezCERN, Geneva, SwitzerlandD. Álvarez PiquerasInstituto de Física Corpuscular (IFIC), Centro Mixto Universidad de Valencia, CSIC, Valencia, SpainMariagrazia AlviggiINFN Sezione di Napoli, Naples, ItalyB. T. AmadioPhysics Division, Lawrence Berkeley National Laboratory and University of California, Berkeley, CA, USAY. Amaral CoutinhoUniversidade Federal do Rio De Janeiro COPPE/EE/IF, Rio de Janeiro, BrazilL. AmbrozDepartment of Physics, Oxford University, Oxford, UKC. AmelungDepartment of Physics, Brandeis University, Waltham, MA, USAD. AmideiDepartment of Physics, University of Michigan, Ann Arbor, MI, USAS. P. Amor Dos SantosLaboratório de Instrumentação e Física Experimental de Partículas-LIP, Lisbon, PortugalS. AmorosoCERN, Geneva, SwitzerlandChristos AnastopoulosDepartment of Physics and Astronomy, University of Sheffield, Sheffield, UKL. S. AncuDépartement de Physique Nucléaire et Corpusculaire, Université de Genève, Geneva, SwitzerlandN. AndariSchool of Physics and Astronomy, University of Birmingham, Birmingham, UKT. AndeenDepartment of Physics, University of Texas at Austin, Austin, TX, USAC. F. AndersPhysikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, GermanyJohn Kenneth AndersAlbert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics, University of Bern, Bern, SwitzerlandK. J. AndersonEnrico Fermi Institute, University of Chicago, Chicago, IL, USAA. AndreazzaINFN Sezione di Milano, Milan, ItalyV. AndreiKirchhoff-Institut für Physik, Ruprecht-Karls-Universität Heidelberg, Heidelberg, GermanyS. AngelidakisLPC, Université Clermont Auvergne, CNRS/IN2P3, Clermont-Ferrand, FranceI. AngelozziNikhef National Institute for Subatomic Physics, University of Amsterdam, Amsterdam, The NetherlandsAaron AngeramiNevis Laboratory, Columbia University, Irvington, NY, USAAlexey AnisenkovBudker Institute of Nuclear Physics, SB RAS, Novosibirsk, RussiaA. AnnoviINFN Sezione di Pisa, Pisa, ItalyC. AntelKirchhoff-Institut für Physik, Ruprecht-Karls-Universität Heidelberg, Heidelberg, GermanyM. T. AnthonyDepartment of Physics and Astronomy, University of Sheffield, Sheffield, UKMario AntonelliINFN e Laboratori Nazionali di Frascati, Frascati, ItalyD. J. A. AntrimDepartment of Physics and Astronomy, University of California Irvine, Irvine, CA, USAFabio AnulliINFN Sezione di Roma, Rome, ItalyMasato AokiKEK, High Energy Accelerator Research Organization, Tsukuba, JapanL. Aperio BellaCERN, Geneva, SwitzerlandG. ArabidzeDepartment of Physics and Astronomy, Michigan State University, East Lansing, MI, USAY. AraiKEK, High Energy Accelerator Research Organization, Tsukuba, JapanJ. P. AraqueLaboratório de Instrumentação e Física Experimental de Partículas-LIP, Lisbon, PortugalV. Araujo FerrazUniversidade Federal do Rio De Janeiro COPPE/EE/IF, Rio de Janeiro, BrazilR. Araujo PereiraUniversidade Federal do Rio De Janeiro COPPE/EE/IF, Rio de Janeiro, BrazilA. T. H. ArceDepartment of Physics, Duke University, Durham, NC, USAR. E. ArdellDepartment of Physics, Royal Holloway University of London, Egham, UKF. A. ArduhInstituto de Física La PlataJ-F. ArguinGroup of Particle Physics, University of Montreal, Montreal, QC, CanadaS. ArgyropoulosUniversity of Iowa, Iowa City, IA, USAA. J. ArmbrusterCERN, Geneva, SwitzerlandL. J. ArmitageSchool of Physics and Astronomy, Queen Mary University of London, London, UKO. ArnaezDepartment of Physics, University of Toronto, Toronto, ON, CanadaH. ArnoldNikhef National Institute for Subatomic Physics, University of Amsterdam, Amsterdam, The NetherlandsM. ArratiaCavendish Laboratory, University of Cambridge, Cambridge, UKO. ArslanPhysikalisches Institut, Universität Bonn, Bonn, GermanyA. ArtamonovInstitute for Theoretical and Experimental Physics (ITEP), Moscow, Russia
2019en
ABI
Аннотация
This paper describes a strategy for a general search used by the ATLAS Collaboration to find potential indications of new physics. Events are classified according to their final state into many event classes. For each event class an automated search algorithm tests whether the data are compatible with the Monte Carlo simulated expectation in several distributions sensitive to the effects of new physics. The significance of a deviation is quantified using pseudoexperiments. A data selection with a significant deviation defines a signal region for a dedicated follow-up analysis with an improved background expectation. The analysis of the data-derived signal regions on a new dataset allows a statistical interpretation without the large look-elsewhere effect. The sensitivity of the approach is discussed using Standard Model processes and benchmark signals of new physics. As an example, results are shown for 3.2 fb -1 of protonproton collision data at a centre-of-mass energy of 13 TeV collected with the ATLAS detector at the LHC in 2015, in which more than 700 event classes and more than 10 5 regions have been analysed. No significant deviations are found and consequently no data-derived signal regions for a follow-up analysis have been defined.
Перевод пока недоступен
Идентификаторы
Цитирования и источники
Цитирований: 2Использованных источников: 0