Measurement of the jet mass in highly boosted t(t)over-bar events from pp collisions at √s=8TeV

被引:0
作者
Sirunyan, A. M. [1 ]
Tumasyan, A. [1 ]
Adam, W. [2 ]
Asilar, E. [2 ]
Bergauer, T. [2 ]
Brandstetter, J. [2 ]
Brondolin, E. [2 ]
Dragicevic, M. [2 ]
Eroe, J. [2 ]
Flechl, M. [2 ]
Friedl, M. [2 ]
Fruehwirth, R. [2 ]
Ghete, V. M. [2 ]
Hartl, C. [2 ]
Hoermann, N. [2 ]
Hrubec, J. [2 ]
Jeitler, M. [2 ]
Koenig, A. [2 ]
Kraetschmer, I. [2 ]
Liko, D. [2 ]
Matsushita, T. [2 ]
Mikulec, I. [2 ]
Rabady, D. [2 ]
Rad, N. [2 ]
Rahbaran, B. [2 ]
Rohringer, H. [2 ]
Schieck, J. [2 ]
Strauss, J. [2 ]
Waltenberger, W. [2 ]
Wulz, C. -E. [2 ,201 ]
Dvornikov, O. [3 ]
Makarenko, V. [3 ]
Mossolov, V. [3 ]
Gonzalez, J. Suarez [3 ]
Zykunov, V. [3 ]
Shumeiko, N. [4 ]
Alderweireldt, S. [5 ]
De Wolf, E. A. [5 ]
Janssen, X. [5 ]
Lauwers, J. [5 ]
Van De Klundert, M. [5 ]
Van Haevermaet, H. [5 ]
Van Mechelen, P. [5 ]
Van Remortel, N. [5 ]
Van Spilbeeck, A. [5 ]
Abu Zeid, S. [6 ]
Blekman, F. [6 ]
D'Hondt, J. [6 ]
Daci, N. [6 ]
De Bruyn, I. [6 ]
机构
[1] Yerevan Phys Inst, Yerevan, Armenia
[2] Inst Hochenergiephys, Vienna, Austria
[3] Inst Nucl Problems, Minsk, BELARUS
[4] Natl Ctr Particle & High Energy Phys, Minsk, BELARUS
[5] Univ Antwerp, Antwerp, Belgium
[6] Vrije Univ Brussel, Brussels, Belgium
[7] Univ Libre Bruxelles, Brussels, Belgium
[8] Univ Ghent, Ghent, Belgium
[9] Catholic Univ Louvain, Louvain La Neu, Belgium
[10] Univ Mons, Mons, Belgium
[11] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil
[12] Univ Estado Rio de Janeiro, Rio De Janeiro, Brazil
[13] Univ Estadual Paulista, Sao Paulo, Brazil
[14] Univ Fed ABC, Sao Paulo, Brazil
[15] Inst Nucl Energy Res, Sofia, Bulgaria
[16] Univ Sofia, Sofia, Bulgaria
[17] Beihang Univ, Beijing, Peoples R China
[18] Inst High Energy Phys, Beijing, Peoples R China
[19] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing, Peoples R China
[20] Univ Los Andes, Bogota, Colombia
[21] Univ Split, Fac Elect Engn Mech Engn & Naval Architecture, Split, Croatia
[22] Univ Split, Fac Sci, Split, Croatia
[23] Inst Rudjer Boskov, Zagreb, Croatia
[24] Univ Cyprus, Nicosia, Cyprus
[25] Charles Univ Prague, Prague, Czech Republic
[26] Univ San Francisco Quito, Quito, Ecuador
[27] Acad Sci Res & Technol Arab Republ Egypt, Egyptian Network High Energy Phys, Cairo, Egypt
[28] NICPB, Tallinn, Estonia
[29] Univ Helsinki, Dept Phys, Helsinki, Finland
[30] Helsinki Inst Phys, Helsinki, Finland
[31] Lappeenranta Univ Technol, Lappeenranta, Finland
[32] Univ Paris Saclay, CEA, IRFU, Gif Sur Yvette, France
[33] Ecole Polytech, Lab Leprince Ringuet, CNRS, IN2P3, Palaiseau, France
[34] Univ Strasbourg, IPHC, CNRS, IN2P3, Strasbourg, France
[35] CNRS, Ctr Calcul, Inst Natl Phys Nucl & Phys Particules, IN2P3, Villeurbanne, France
[36] Univ Claude Bernard Lyon 1, Univ Lyon, CNRS, Inst Phys Nucl Lyon,IN2P3, Villeurbanne, France
[37] Georgian Tech Univ, Tbilisi, Georgia
[38] Tbilisi State Univ, Tbilisi, Georgia
[39] Rhein Westfal TH Aachen, Phys Inst 1, Aachen, Germany
[40] Rhein Westfal TH Aachen, Phys Inst 3, Aachen, Germany
[41] Rhein Westfal TH Aachen, Phys Inst B 3, Aachen, Germany
[42] DESY, Hamburg, Germany
[43] Univ Hamburg, Hamburg, Germany
[44] Inst Expt Kernphys, Karlsruhe, Germany
[45] NCSR Demokritos, INPP, Aghia Paraskevi, Greece
[46] Natl & Kapodistrian Univ Athens, Athens, Greece
[47] Univ Ioannina, Ioannina, Greece
[48] Eotvos Lorand Univ, MTA ELTE Lendulet CMS Particle & Nucl Phys Grp, Budapest, Hungary
[49] Wigner Res Ctr Phys, Budapest, Hungary
[50] Inst Nucl Res ATOMKI, Debrecen, Hungary
来源
EUROPEAN PHYSICAL JOURNAL C | 2017年 / 77卷 / 07期
基金
欧洲研究理事会; 美国国家科学基金会; 芬兰科学院; 巴西圣保罗研究基金会;
关键词
TOP-PAIR; CROSS-SECTION; RESUMMATION;
D O I
10.1140/epjc/s10052-017-5030-3
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
The first measurement of the jet mass m(jet) of top quark jets produced in t (t) over bar events from pp collisions at root s = 8 TeV is reported for the jet with the largest transverse momentum p(T) in highly boosted hadronic top quark decays. The data sample, collected with the CMS detector, corresponds to an integrated luminosity of 19.7 fb(-1). The measurement is performed in the lepton+jets channel in which the products of the semileptonic decay t -> bW with W -> l nu where l is an electron or muon, are used to select t (t) over bar events with large Lorentz boosts. The products of the fully hadronic decay t -> bW with W -> q (q) over bar ' are reconstructed using a single Cambridge-Aachen jet with distance parameter R = 1.2, and pT > 400 GeV. The t (t) over bar cross section as a function of m(jet) is unfolded at the particle level and is used to test the modelling of highly boosted top quark production. The peak position of the m(jet) distribution is sensitive to the top quark mass m(t), and the data are used to extract a value of m(t) to assess this sensitivity.
引用
收藏
页数:28
相关论文
共 115 条
  • [1] Measurement of top quark pair differential cross sections in the dilepton channel in pp collisions at √s=7 and 8 TeV with ATLAS
    Aaboud, M.
    Aad, G.
    Abbott, B.
    Abdallah, J.
    Abdinov, O.
    Abeloos, B.
    Aben, R.
    AbouZeid, O. S.
    Abraham, N. L.
    Abramowicz, H.
    Abreu, H.
    Abreu, R.
    Abulaiti, Y.
    Acharya, B. S.
    Adamczyk, L.
    Adams, D. L.
    Adelman, J.
    Adomeit, S.
    Adye, T.
    Affolder, A. A.
    Agatonovic-Jovin, T.
    Agricola, J.
    Aguilar-Saavedra, J. A.
    Ahlen, S. P.
    Ahmadov, F.
    Aielli, G.
    Akerstedt, H.
    Akesson, T. P. A.
    Akimov, A. V.
    Alberghi, G. L.
    Albert, J.
    Albrand, S.
    Alconada Verzini, M. J.
    Aleksa, M.
    Aleksandrov, I. N.
    Alexa, C.
    Alexander, G.
    Alexopoulos, T.
    Alhroob, M.
    Ali, B.
    Aliev, M.
    Alimonti, G.
    Alison, J.
    Alkire, S. P.
    Allbrooke, B. M. M.
    Allen, B. W.
    Allport, P. P.
    Aloisio, A.
    Alonso, A.
    Alonso, F.
    [J]. PHYSICAL REVIEW D, 2016, 94 (09)
  • [2] Measurement of the top quark mass in the t(t)over-bar → dilepton channel from √s=8TeVATLAS data
    Aaboud, M.
    Aad, G.
    Abbott, B.
    Abdallah, J.
    Abdinov, O.
    Abeloos, B.
    Aben, R.
    AbouZeid, O. S.
    Abraham, N. L.
    Abramowicz, H.
    Abreu, H.
    Abreu, R.
    Abulaiti, Y.
    Acharya, B. S.
    Adamczyk, L.
    Adams, D. L.
    Adelman, J.
    Adomeit, S.
    Adye, T.
    Affolder, A. A.
    Agatonovic-Jovin, T.
    Agricola, J.
    Aguilar-Saavedra, J. A.
    Ahlen, S. P.
    Ahmadov, F.
    Aielli, G.
    Akerstedt, H.
    Akesson, T. P. A.
    Akimov, A. V.
    Alberghi, G. L.
    Albert, J.
    Albrand, S.
    Verzini, M. J. Alconada
    Aleksa, M.
    Aleksandrov, I. N.
    Alexa, C.
    Alexander, G.
    Alexopoulos, T.
    Alhroob, M.
    Ali, B.
    Aliev, M.
    Alimonti, G.
    Alison, J.
    Alkire, S. P.
    Allbrooke, B. M. M.
    Allen, B. W.
    Allport, P. P.
    Aloisio, A.
    Alonso, A.
    Alonso, F.
    [J]. PHYSICS LETTERS B, 2016, 761 : 350 - 371
  • [3] Aad G, 2016, J HIGH ENERGY PHYS, DOI 10.1007/JHEP02(2016)110
  • [4] Aad G, 2015, EUR PHYS J C, V75, DOI 10.1140/epjc/s10052-015-3372-2
  • [5] Measurement of the differential cross-section of highly boosted top quarks as a function of their transverse momentum in √s=8 TeV proton-proton collisions using the ATLAS detector
    Aad, G.
    Abbott, B.
    Abdallah, J.
    Abdinov, O.
    Aben, R.
    Abolins, M.
    AbouZeid, O. S.
    Abramowicz, H.
    Abreu, H.
    Abreu, R.
    Abulaiti, Y.
    Acharya, B. S.
    Adamczyk, L.
    Adams, D. L.
    Adelman, J.
    Adomeit, S.
    Adye, T.
    Affolder, A. A.
    Agatonovic-Jovin, T.
    Agricola, J.
    Aguilar-Saavedra, J. A.
    Ahlen, S. P.
    Ahmadov, F.
    Aielli, G.
    Akerstedt, H.
    Akesson, T. P. A.
    Akimov, A. V.
    Alberghi, G. L.
    Albert, J.
    Albrand, S.
    Verzini, M. J. Alconada
    Aleksa, M.
    Aleksandrov, I. N.
    Alexa, C.
    Alexander, G.
    Alexopoulos, T.
    Alhroob, M.
    Alimonti, G.
    Alio, L.
    Alison, J.
    Alkire, S. P.
    Allbrooke, B. M. M.
    Allport, P. P.
    Aloisio, A.
    Alonso, A.
    Alonso, F.
    Alpigiani, C.
    Altheimer, A.
    Gonzalez, B. Alvarez
    Piqueras, D. Alvarez
    [J]. PHYSICAL REVIEW D, 2016, 93 (03)
  • [6] Aad G, 2015, J HIGH ENERGY PHYS, DOI 10.1007/JHEP10(2015)121
  • [7] Aad G, 2015, J HIGH ENERGY PHYS, DOI 10.1007/JHEP08(2015)148
  • [8] Measurement of the top quark mass in the t(t)over-bar → lepton plus jets and t(t)over-bar → dilepton channels using √s=7 TeV ATLAS data
    Aad, G.
    Abbott, B.
    Abdallah, J.
    Abdinov, O.
    Aben, R.
    Abolins, M.
    AbouZeid, O. S.
    Abramowicz, H.
    Abreu, H.
    Abreu, R.
    Abulaiti, Y.
    Acharya, B. S.
    Adamczyk, L.
    Adams, D. L.
    Adelman, J.
    Adomeit, S.
    Adye, T.
    Affolder, A. A.
    Agatonovic-Jovin, T.
    Aguilar-Saavedra, J. A.
    Ahlen, S. P.
    Ahmadov, F.
    Aielli, G.
    Akerstedt, H.
    Akesson, T. P. A.
    Akimoto, G.
    Akimov, A. V.
    Alberghi, G. L.
    Albert, J.
    Albrand, S.
    Verzini, M. J. Alconada
    Aleksa, M.
    Aleksandrov, I. N.
    Alexa, C.
    Alexander, G.
    Alexopoulos, T.
    Alhroob, M.
    Alimonti, G.
    Alio, L.
    Alison, J.
    Alkire, S. P.
    Allbrooke, B. M. M.
    Allport, P. P.
    Aloisio, A.
    Alonso, A.
    Alonso, F.
    Alpigiani, C.
    Altheimer, A.
    Gonzalez, B. Alvarez
    Piqueras, D. Alvarez
    [J]. EUROPEAN PHYSICAL JOURNAL C, 2015, 75 (07):
  • [9] Aad G, 2015, J HIGH ENERGY PHYS, DOI 10.1007/JHEP06(2015)100
  • [10] Measurements of normalized differential cross sections for t(t)over-bar production in pp collisions at √(s)=7 TeV using the ATLAS detector
    Aad, G.
    Abajyan, T.
    Abbott, B.
    Abdallah, J.
    Khalek, S. Abdel
    Abdinov, O.
    Aben, R.
    Abi, B.
    Abolins, M.
    AbouZeid, O. S.
    Abramowicz, H.
    Abreu, H.
    Abulaiti, Y.
    Acharya, B. S.
    Adamczyk, L.
    Adams, D. L.
    Adelman, J.
    Adomeit, S.
    Adye, T.
    Agatonovic-Jovin, T.
    Aguilar-Saavedra, J. A.
    Agustoni, M.
    Ahlen, S. P.
    Ahmadov, F.
    Aielli, G.
    Akesson, T. P. A.
    Akimoto, G.
    Akimov, A. V.
    Albert, J.
    Albrand, S.
    Alconada Verzini, M. J.
    Aleksa, M.
    Aleksandrov, I. N.
    Alexa, C.
    Alexander, G.
    Alexandre, G.
    Alexopoulos, T.
    Alhroob, M.
    Alimonti, G.
    Alio, L.
    Alison, J.
    Allbrooke, B. M. M.
    Allison, L. J.
    Allport, P. P.
    Allwood-Spiers, S. E.
    Almond, J.
    Aloisio, A.
    Alon, R.
    Alonso, A.
    Alonso, F.
    [J]. PHYSICAL REVIEW D, 2014, 90 (07)