Search for Production of Heavy Particles Decaying to Top Quarks and Invisible Particles in p(p)over-bar Collisions at √s=1.96 TeV

被引:32
作者
Aaltonen, T. [1 ,2 ]
Alvarez Gonzalez, B. [13 ]
Amerio, S. [53 ]
Amidei, D. [44 ]
Anastassov, A. [48 ]
Annovi, A. [22 ]
Antos, J. [16 ,17 ]
Apollinari, G. [20 ]
Appel, J. A. [20 ]
Apresyan, A. [60 ]
Arisawa, T. [72 ]
Artikov, A. [18 ]
Asaadi, J. [66 ]
Ashmanskas, W. [20 ]
Auerbach, B. [75 ]
Aurisano, A. [66 ]
Azfar, F. [52 ]
Badgett, W. [20 ]
Barbaro-Galtieri, A. [35 ]
Barnes, V. E. [60 ]
Barnett, B. A. [27 ]
Barria, P. [56 ,57 ]
Bartos, P. [16 ,17 ]
Bauce, M. [9 ,53 ]
Bauer, G. [39 ]
Bedeschi, F. [56 ]
Beecher, D. [37 ]
Behari, S. [27 ]
Bellettini, G. [56 ,57 ]
Bellinger, J. [74 ]
Benjamin, D. [19 ]
Beretvas, A. [20 ]
Bhatti, A. [62 ]
Binkley, M. [20 ]
Bisello, D. [9 ,53 ]
Bizjak, I. [37 ]
Bland, K. R. [7 ]
Blumenfeld, B. [27 ]
Bocci, A. [19 ]
Bodek, A. [61 ]
Bortoletto, D. [60 ]
Boudreau, J. [59 ]
Boveia, A. [15 ]
Brau, B. [20 ]
Brigliadori, L. [8 ,9 ]
Brisuda, A. [16 ,17 ]
Bromberg, C. [45 ]
Brucken, E. [1 ,2 ]
Bucciantonio, M. [56 ,57 ]
Budagov, J. [18 ]
机构
[1] Univ Helsinki, Dept Phys, Div High Energy Phys, FIN-00014 Helsinki, Finland
[2] Helsinki Inst Phys, FIN-00014 Helsinki, Finland
[3] Acad Sinica, Inst Phys, Taipei 11529, Taiwan
[4] Argonne Natl Lab, Argonne, IL 60439 USA
[5] Univ Athens, GR-15771 Athens, Greece
[6] Univ Autonoma Barcelona, ICREA, Inst Fis Altes Energies, E-08193 Bellaterra, Barcelona, Spain
[7] Baylor Univ, Waco, TX 76798 USA
[8] Ist Nazl Fis Nucl, I-40127 Bologna, Italy
[9] Univ Bologna, I-40127 Bologna, Italy
[10] Univ Calif Davis, Davis, CA 95616 USA
[11] Univ Calif Irvine, Irvine, CA 92697 USA
[12] Univ Calif Los Angeles, Los Angeles, CA 90024 USA
[13] Univ Cantabria, CSIC, Inst Fis Cantabria, E-39005 Santander, Spain
[14] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA
[15] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA
[16] Comenius Univ, Bratislava 84248, Slovakia
[17] Inst Expt Phys, Kosice 04001, Slovakia
[18] Joint Inst Nucl Res, RU-141980 Dubna, Russia
[19] Duke Univ, Durham, NC 27708 USA
[20] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA
[21] Univ Florida, Gainesville, FL 32611 USA
[22] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy
[23] Univ Geneva, CH-1211 Geneva 4, Switzerland
[24] Univ Glasgow, Glasgow G12 8QQ, Lanark, Scotland
[25] Harvard Univ, Cambridge, MA 02138 USA
[26] Univ Illinois, Urbana, IL 61801 USA
[27] Johns Hopkins Univ, Baltimore, MD 21218 USA
[28] Karlsruhe Inst Technol, Inst Expt Kernphys, D-76131 Karlsruhe, Germany
[29] Kyungpook Natl Univ, Ctr High Energy Phys, Taegu 702701, South Korea
[30] Seoul Natl Univ, Seoul 151742, South Korea
[31] Sungkyunkwan Univ, Suwon 440746, South Korea
[32] Korea Inst Sci & Technol Informat, Taejon 305806, South Korea
[33] Chonnam Natl Univ, Kwangju 500757, South Korea
[34] Chonbuk Natl Univ, Jeonju 561756, South Korea
[35] Ernest Orlando Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA
[36] Univ Liverpool, Liverpool L69 7ZE, Merseyside, England
[37] UCL, London WC1E 6BT, England
[38] Ctr Invest Energet Medioambientales & Tecnol, E-28040 Madrid, Spain
[39] MIT, Cambridge, MA 02139 USA
[40] McGill Univ, Inst Particle Phys, Montreal, PQ H3A 2T8, Canada
[41] Simon Fraser Univ, Burnaby, BC V5A 1S6, Canada
[42] Univ Toronto, Toronto, ON M5S 1A7, Canada
[43] TRIUMF, Vancouver, BC V6T 2A3, Canada
[44] Univ Michigan, Ann Arbor, MI 48109 USA
[45] Michigan State Univ, E Lansing, MI 48824 USA
[46] Inst Theoret & Expt Phys, Moscow 117259, Russia
[47] Univ New Mexico, Albuquerque, NM 87131 USA
[48] Northwestern Univ, Evanston, IL 60208 USA
[49] Ohio State Univ, Columbus, OH 43210 USA
[50] Okayama Univ, Okayama 7008530, Japan
基金
英国科学技术设施理事会; 新加坡国家研究基金会; 加拿大自然科学与工程研究理事会; 芬兰科学院; 俄罗斯基础研究基金会; 瑞士国家科学基金会; 美国国家科学基金会;
关键词
PHYSICS;
D O I
10.1103/PhysRevLett.106.191801
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We present a search for a new particle T' decaying to top quark via T' -> t + X, where X is an invisible particle. In a data sample with 4.8 fb(-1) of integrated luminosity collected by the CDF II detector at Fermilab in p (p) over bar collisions with root s = 1.96 TeV, we search for pair production of T' in the lepton + jets channel, p (p) over bar -> t (t) over bar + X + X -> lvbqq'b + X + X. We interpret our results primarily in terms of a model where T' are exotic fourth generation quarks and X are dark matter particles. Current direct and indirect bounds on such exotic quarks restrict their masses to be between 300 and 600 GeV/c(2), the dark matter particle mass being anywhere below m(T'). The data are consistent with standard model expectations, and we set 95% confidence level limits on the generic production of T'(T) over bar -> t (t) over bar + X + X. For the dark matter model we exclude T' at 95% confidence level up to m(T)' = 360 GeV/c(2) for m(X) <= 100 GeV/c(2).
引用
收藏
页数:7
相关论文
共 45 条
  • [21] Pseudorapidity distributions of charged particles in p-(p)over-bar or p-p collisions at high energies and predictions at ultrahigh energies
    Sun, Jian-Xin
    Liu, Fu-Hu
    Wang, Er-Qin
    Sun, Yan
    Sun, Zhu
    PHYSICAL REVIEW C, 2011, 83 (01)
  • [22] Search for direct pair production of supersymmetric top quarks decaying to all-hadronic final states in pp collisions at √s=8 TeV
    Khachatryan, V.
    Sirunyan, A. M.
    Tumasyan, A.
    Adam, W.
    Asilar, E.
    Bergauer, T.
    Brandstetter, J.
    Brondolin, E.
    Dragicevic, M.
    Ero, J.
    Flechl, M.
    Friedl, M.
    Fruhwirth, R.
    Ghete, V. M.
    Hartl, C.
    Hormann, N.
    Hrubec, J.
    Jeitler, M.
    Knunz, V.
    Konig, A.
    Krammer, M.
    Kratschmer, I.
    Liko, D.
    Matsushita, T.
    Mikulec, I.
    Rabady, D.
    Rahbaran, B.
    Rohringer, H.
    Schieck, J.
    Schofbeck, R.
    Strauss, J.
    Treberer-Treberspurg, W.
    Waltenberger, W.
    Wulz, C. -E.
    Mossolov, V.
    Shumeiko, N.
    Suarez Gonzalez, J.
    Alderweireldt, S.
    Cornelis, T.
    Wolf, E. A. De
    Janssen, X.
    Knutsson, A.
    Lauwers, J.
    Luyckx, S.
    Klundert, M. Van De
    Haevermaet, H. Van
    Mechelen, P. Van
    Remortel, N. Van
    Spilbeeck, A. Van
    Abu Zeid, S.
    EUROPEAN PHYSICAL JOURNAL C, 2016, 76 (08):
  • [23] Search for single production of vector-like quarks decaying to a top quark and a W boson in proton-proton collisions at TeV
    Sirunyan, A. M.
    Tumasyan, A.
    Adam, W.
    Ambrogi, F.
    Asilar, E.
    Bergauer, T.
    Brandstetter, J.
    Dragicevic, M.
    Eroe, J.
    Del Valle, A. Escalante
    Flechl, M.
    Fruehwirth, R.
    Ghete, V. M.
    Hrubec, J.
    Jeitler, M.
    Krammer, N.
    Kraetschmer, I.
    Liko, D.
    Madlener, T.
    Mikulec, I.
    Rad, N.
    Rohringer, H.
    Schieck, J.
    Schoefbeck, R.
    Spanring, M.
    Spitzbart, D.
    Taurok, A.
    Waltenberger, W.
    Wittmann, J.
    Wulz, C. -E.
    Zarucki, M.
    Chekhovsky, V.
    Mossolov, V.
    Gonzalez, J. Suarez
    De Wolf, E. A.
    Di Croce, D.
    Janssen, X.
    Lauwers, J.
    Pieters, M.
    Van Haevermaet, H.
    Van Mechelen, P.
    Van Remortel, N.
    Abu Zeid, S.
    Blekman, F.
    D'Hondt, J.
    De Clercq, J.
    Deroover, K.
    Flouris, G.
    Lontkovskyi, D.
    Lowette, S.
    EUROPEAN PHYSICAL JOURNAL C, 2019, 79 (02):
  • [24] Search for Higgs boson pair production in the γ γ b(b)over-bar final state in pp collisions at √s=13 TeV
    Sirunyan, A. M.
    Tumasyan, A.
    Adam, W.
    Ambrogi, F.
    Asilar, E.
    Bergauer, T.
    Brandstetter, J.
    Brondolin, E.
    Dragicevic, M.
    Eroe, J.
    Del Valle, A. Escalante
    Flechl, M.
    Friedl, M.
    Fruehwirth, R.
    Ghete, V. M.
    Grossmann, J.
    Hrubec, J.
    Jeitler, M.
    Koenig, A.
    Krammer, N.
    Kraetschmer, I.
    Liko, D.
    Madlener, T.
    Mikulec, I.
    Pree, E.
    Rad, N.
    Rohringer, H.
    Schieck, J.
    Schoefbeck, R.
    Spanring, M.
    Spitzbart, D.
    Taurok, A.
    Waltenberger, W.
    Wittmann, J.
    Wulz, C. -E.
    Zarucki, M.
    Chekhovsky, V.
    Mossolov, V.
    Gonzalez, J. Suarez
    De Wolf, E. A.
    Di Croce, D.
    Janssen, X.
    Lauwers, J.
    Van De Klundert, M.
    Van Haevermaet, H.
    Van Mechelen, P.
    Van Remortel, N.
    Abu Zeid, S.
    Blekman, F.
    D'Hondt, J.
    PHYSICS LETTERS B, 2019, 788 : 7 - 36
  • [25] Search for heavy long-lived charged particles in pp collisions at √s=7 TeV
    Chatrchyan, S.
    Khachatryan, V.
    Sirunyan, A. M.
    Tumasyan, A.
    Adam, W.
    Bergauer, T.
    Dragicevic, M.
    Eroe, J.
    Fabjan, C.
    Friedl, M.
    Fruehwirth, R.
    Ghete, V. M.
    Hammer, J.
    Hoermann, N.
    Hrubec, J.
    Jeitler, M.
    Kiesenhofer, W.
    Knuenz, V.
    Krammer, M.
    Liko, D.
    Mikulec, I.
    Pernicka, M.
    Rahbaran, B.
    Rohringer, C.
    Rohringer, H.
    Schoefbeck, R.
    Strauss, J.
    Taurok, A.
    Teischinger, F.
    Wagner, P.
    Waltenberger, W.
    Walzel, G.
    Widl, E.
    Wulz, C. -E.
    Mossolov, V.
    Shumeiko, N.
    Gonzalez, J. Suarez
    Bansal, S.
    Cerny, K.
    Cornelis, T.
    De Wolf, E. A.
    Janssen, X.
    Luyckx, S.
    Maes, T.
    Mucibello, L.
    Ochesanu, S.
    Roland, B.
    Rougny, R.
    Selvaggi, M.
    Van Haevermaet, H.
    PHYSICS LETTERS B, 2012, 713 (4-5) : 408 - 433
  • [26] Search for resonant diboson production in the llq(q)over-bar final state in pp collisions at √s=8 TeV with the ATLAS detector
    Aad, G.
    Abbott, B.
    Abdallah, J.
    Khalek, S. Abdel
    Abdinov, O.
    Aben, R.
    Abi, B.
    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.
    Agatonovic-Jovin, T.
    Aguilar-Saavedra, J. A.
    Agustoni, M.
    Ahlen, S. P.
    Ahmadov, F.
    Aielli, G.
    Akerstedt, H.
    Akesson, T. P.
    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.
    Alexandre, G.
    Alexopoulos, T.
    Alhroob, M.
    Alimonti, G.
    Alio, L.
    Alison, J.
    Allbrooke, B. M. M.
    Allison, L. J.
    Allport, P. P.
    Almond, J.
    Aloisio, A.
    Alonso, A.
    Alonso, F.
    EUROPEAN PHYSICAL JOURNAL C, 2015, 75 (02): : 69
  • [27] Search for heavy particles decaying into top-quark pairs using lepton-plus-jets events in proton-proton collisions at √s=13 TeV with the ATLAS detector
    Aaboud, M.
    Aad, G.
    Abbott, B.
    Abdinov, O.
    Abeloos, B.
    Abidi, S. H.
    AbouZeid, O. S.
    Abraham, N. L.
    Abramowicz, H.
    Abreu, H.
    Abulaiti, Y.
    Acharya, B. S.
    Adachi, S.
    Adamczyk, L.
    Adelman, J.
    Adersberger, M.
    Adiguzel, A.
    Adye, T.
    Affolder, A. A.
    Afik, Y.
    Agheorghiesei, C.
    Aguilar-Saavedra, J. A.
    Ahmadov, F.
    Aielli, G.
    Akatsuka, S.
    Akesson, T. P. A.
    Akilli, E.
    Akimov, A. V.
    Alberghi, G. L.
    Albert, J.
    Albicocco, P.
    Verzini, M. J. Alconada
    Alderweireldt, S.
    Aleksa, M.
    Aleksandrov, I. N.
    Alexab, C.
    Alexander, G.
    Alexopoulos, T.
    Alhroob, M.
    Ali, B.
    Aliev, M.
    Alimontii, G.
    Alison, J.
    Alkire, S. P.
    Allaire, C.
    Allbrooke, B. M. M.
    Allen, B. W.
    Allport, P. P.
    Aloisio, A.
    Alonso, A.
    EUROPEAN PHYSICAL JOURNAL C, 2018, 78 (07):
  • [28] Search for standard model production of four top quarks in proton-proton collisions at √s=13TeV
    Sirunyan, A. M.
    Tumasyan, A.
    Adam, W.
    Asilar, E.
    Bergauer, T.
    Brandstetter, J.
    Brondolin, E.
    Dragicevic, M.
    Eroe, J.
    Flechl, M.
    Friedl, M.
    Fruehwirth, R.
    Ghete, V. M.
    Hartl, C.
    Hoermann, N.
    Hrubec, J.
    Jeitler, M.
    Koenig, A.
    Kraetschmer, I.
    Liko, D.
    Matsushita, T.
    Mikulec, I.
    Rabady, D.
    Rad, N.
    Rahbaran, B.
    Rohringer, H.
    Schieck, J.
    Strauss, J.
    Waltenberger, W.
    Wulz, C. -E.
    Dvornikov, O.
    Makarenko, V.
    Mossolov, V.
    SuarezGonzalez, J.
    Zykunov, V.
    Shumeiko, N.
    Alderweireldt, S.
    De Wolf, E. A.
    Janssen, X.
    Lauwers, J.
    Van De Klundert, M.
    Van Haevermaet, H.
    Van Mechelen, P.
    Van Remortel, N.
    Van Spilbeeck, A.
    Abu Zeid, S.
    Blekman, F.
    D'Hondt, J.
    Daci, N.
    De Bruyn, I.
    PHYSICS LETTERS B, 2017, 772 : 336 - 358
  • [29] Search for flavor changing neutral currents via quark-gluon couplings in single top quark production using 2.3 fb-1 of p(p)over-bar collisions
    Abazov, V. M.
    Abbott, B.
    Abolins, M.
    Acharya, B. S.
    Adams, M.
    Adams, T.
    Alexeev, G. D.
    Alkhazov, G.
    Alton, A.
    Alverson, G.
    Alves, G. A.
    Ancu, L. S.
    Aoki, M.
    Arnoud, Y.
    Arov, M.
    Askew, A.
    Asman, B.
    Atramentov, O.
    Avila, C.
    BackusMayes, J.
    Badaud, F.
    Bagby, L.
    Baldin, B.
    Bandurin, D. V.
    Banerjee, S.
    Barberis, E.
    Barfuss, A. -F.
    Baringer, R.
    Barreto, J.
    Bartlett, J. F.
    Basslerr, U.
    Beale, S.
    Bean, A.
    Begalli, M.
    Begel, M.
    Belanger-Champagne, C.
    Bellantoni, L.
    Benitez, J. A.
    Beri, S. B.
    Bernardi, G.
    Bernhard, R.
    Bertram, I.
    Besancon, M.
    Beuselinck, R.
    Bezzubov, V. A.
    Bhat, P. C.
    Bhatnagar, V.
    Blazey, G.
    Blessing, S.
    Bloom, K.
    PHYSICS LETTERS B, 2010, 693 (02) : 81 - 87
  • [30] Measurement of the forward-backward asymmetry in top quark-antiquark production in p(p)over-bar collisions using the lepton plus jets channel
    Abazov, V. M.
    Abbott, B.
    Acharya, B. S.
    Adams, M.
    Adams, T.
    Agnew, J. P.
    Alexeev, G. D.
    Alkhazov, G.
    Alton, A.
    Askew, A.
    Atkins, S.
    Augsten, K.
    Avila, C.
    Badaud, F.
    Bagby, L.
    Baldin, B.
    Bandurin, D. V.
    Banerjee, S.
    Barberis, E.
    Baringer, P.
    Bartlett, J. F.
    Bassler, U.
    Bazterra, V.
    Bean, A.
    Begalli, M.
    Bellantoni, L.
    Beri, S. B.
    Bernardi, G.
    Bernhard, R.
    Bertram, I.
    Besancon, M.
    Beuselinck, R.
    Bhat, P. C.
    Bhatia, S.
    Bhatnagar, V.
    Blazey, G.
    Blessing, S.
    Bloom, K.
    Boehnlein, A.
    Boline, D.
    Boos, E. E.
    Borissov, G.
    Borysova, M.
    Brandt, A.
    Brandt, O.
    Brock, R.
    Bross, A.
    Brown, D.
    Bu, X. B.
    Buehler, M.
    PHYSICAL REVIEW D, 2014, 90 (07):