Measurement of the top quark mass in the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:mi>t</mml:mi><mml:mover accent="true"><mml:mrow><mml:mi>t</mml:mi></mml:mrow><mml:mrow><mml:mo stretchy="false">¯</mml:mo></mml:mrow></mml:mover><mml:mo stretchy="false">→</mml:mo><mml:mtext>dilepton</mml:mtext></mml:math> channel from <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si111.gif" overflow="scroll"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>8</mml:mn><mml:mtext> TeV</mml:mtext></mml:math> ATLAS data
M. AaboudFaculté des Sciences, Université Mohamed Premier and LPTPM, Oujda, MoroccoG. AadCPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, FranceB. AbbottHomer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman OK, United StatesJ. AbdallahUniversity of Iowa, Iowa City IA, United StatesO. AbdinovInstitute of Physics, Azerbaijan Academy of Sciences, Baku, AzerbaijanB. AbeloosLAL, Univ. Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, Orsay, FranceR. AbenNikhef National Institute for Subatomic Physics and University of Amsterdam, Amsterdam, NetherlandsO. S. AbouZeidSanta Cruz Institute for Particle Physics, University of California Santa Cruz, Santa Cruz CA, United StatesN. L. AbrahamDepartment of Physics and Astronomy, University of Sussex, Brighton, United KingdomH. AbramowiczRaymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv, IsraelH. AbreuDepartment of Physics, Technion: Israel Institute of Technology, Haifa, IsraelR. AbreuCenter for High Energy Physics, University of Oregon, Eugene OR, United StatesY. AbulaitiThe Oskar Klein Centre, Stockholm, SwedenB. S. AcharyaICTP, Trieste, ItalyL. AdamczykAGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, PolandD. L. AdamsPhysics Department, Brookhaven National Laboratory, Upton NY, United StatesJahred AdelmanDepartment of Physics, Northern Illinois University, DeKalb IL, United StatesS. AdomeitFakultät für Physik, Ludwig-Maximilians-Universität München, München, GermanyTim AdyeParticle Physics Department, Rutherford Appleton Laboratory, Didcot, United KingdomTony AffolderOliver Lodge Laboratory, University of Liverpool, Liverpool, United KingdomT. Agatonović-JovinParticle Physics Department, Rutherford Appleton Laboratory, Didcot, United KingdomJ. AgricolaDepartment of Physics, Northern Illinois University, DeKalb IL, United StatesJ. A. Aguilar–SaavedraDepartment of Physics, Northern Illinois University, DeKalb IL, United StatesS. AhlenF. AhmadovOliver Lodge Laboratory, University of Liverpool, Liverpool, United KingdomGiulio AielliCPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, FranceH. AkerstedtICTP, Trieste, ItalyTorsten AkessonA.V. AkimovGian Luigi AlberghiJ. AlbertDepartment of Physics, Northern Illinois University, DeKalb IL, United StatesS. AlbrandFakultät für Physik, Ludwig-Maximilians-Universität München, München, GermanyM. J. Alconada VerziniMartin AleksaFakultät für Physik, Ludwig-Maximilians-Universität München, München, GermanyI. N. AleksandrovInstitute of Physics, Azerbaijan Academy of Sciences, Baku, AzerbaijanC. AlexaAGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, PolandG. AlexanderCPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, FranceT. AlexopoulosParticle Physics Department, Rutherford Appleton Laboratory, Didcot, United KingdomMuhammad AlhroobFakultät für Physik, Ludwig-Maximilians-Universität München, München, GermanyBabar AliICTP, Trieste, ItalyM. AlievFakultät für Physik, Ludwig-Maximilians-Universität München, München, GermanyGianluca AlimontiCPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, FranceJ. AlisonDepartment of Physics, Northern Illinois University, DeKalb IL, United StatesS.P. AlkireB. M. M. AllbrookeB. W. AllenPhilip Patrick AllportA. AloisioA. AlonsoF. AlonsoOliver Lodge Laboratory, University of Liverpool, Liverpool, United KingdomCristiano AlpigianiAGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, PolandM. I. AlstatyFakultät für Physik, Ludwig-Maximilians-Universität München, München, GermanyB. Álvarez GonzálezINFN Gruppo Collegato di Udine, Sezione di Trieste, Udine, ItalyD. Álvarez PiquerasOliver Lodge Laboratory, University of Liverpool, Liverpool, United KingdomM.G. AlviggiB. T. AmadioK. AmakoAGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, PolandY. Amaral CoutinhoParticle Physics Department, Rutherford Appleton Laboratory, Didcot, United KingdomC. AmelungAGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, PolandD. AmideiOliver Lodge Laboratory, University of Liverpool, Liverpool, United KingdomS. P. Amor Dos SantosA. AmorimS. AmorosoFakultät für Physik, Ludwig-Maximilians-Universität München, München, GermanyG. AmundsenCPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, FranceChristos AnastopoulosAGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, PolandL.S. AncuN. AndariDepartment of Physics, Northern Illinois University, DeKalb IL, United StatesT. AndeenParticle Physics Department, Rutherford Appleton Laboratory, Didcot, United KingdomC. F. AndersGeorge J. AndersCPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, FranceJohn Kenneth AndersK. J. AndersonA. AndreazzaV. AndreiInstitute of Physics, Azerbaijan Academy of Sciences, Baku, AzerbaijanS. AngelidakisFakultät für Physik, Ludwig-Maximilians-Universität München, München, GermanyI. AngelozziFakultät für Physik, Ludwig-Maximilians-Universität München, München, GermanyP. AngerAaron AngeramiF. AnghinolfiOliver Lodge Laboratory, University of Liverpool, Liverpool, United KingdomAlexey AnisenkovN. AnjosDepartment of Physics, Northern Illinois University, DeKalb IL, United StatesA. AnnoviC. AntelAGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, PolandM. AntonelliFakultät für Physik, Ludwig-Maximilians-Universität München, München, GermanyA. AntonovF. AnulliOliver Lodge Laboratory, University of Liverpool, Liverpool, United KingdomMasato AokiFakultät für Physik, Ludwig-Maximilians-Universität München, München, GermanyL. Aperio BellaOliver Lodge Laboratory, University of Liverpool, Liverpool, United KingdomG. ArabidzeCPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, FranceY. AraiParticle Physics Department, Rutherford Appleton Laboratory, Didcot, United KingdomJ. P. AraqueA. T. H. ArceF.A. ArduhJ-F. ArguinS. ArgyropoulosFakultät für Physik, Ludwig-Maximilians-Universität München, München, GermanyM. ArikFakultät für Physik, Ludwig-Maximilians-Universität München, München, GermanyA. J. ArmbrusterL. J. ArmitageO. ArnaezOliver Lodge Laboratory, University of Liverpool, Liverpool, United KingdomH. ArnoldICTP, Trieste, Italy
2016lv
ABI
Аннотация
The top quark mass is measured in the t t dilepton channel (lepton = e, ) using ATLAS data recorded in the year 2012 at the LHC. The data were taken at a proton-proton centre-of-mass energy of s = 8 TeV and correspond to an integrated luminosity of about 20.2 fb -1 . Exploiting the template method, and using the distribution of invariant masses of lepton-b-jet pairs, the top quark mass is measured to be m top = 172.99 0.41 (stat) 0.74 (syst) GeV, with a total uncertainty of 0.84 GeV. Finally, a combination with previous ATLAS m top measurements from s = 7 TeV data in the t t dilepton and t t lepton + jets channels results in m top = 172.84 0.34 (stat) 0.61 (syst) GeV, with a total uncertainty of 0.70 GeV.
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