1. Measurement of spin correlation between top and antitop quarks produced in p(p)over-bar collisions at root s=1.96 TeV
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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., Aushev, V., Aushev, Y., 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., Buescher, V., Bunichev, V., Burdin, S., Buszello, Claus P., Camacho-Perez, E., Casey, B. C. K., Castilla-Valdez, H., Caughron, S., Chakrabarti, S., Chan, K. M., Chandra, A., Chapon, E., Chen, G., Cho, S. W., Choi, S., Choudhary, B., Cihangir, S., Claes, D., Clutter, J., Cooke, M., Cooper, W. E., Corcoran, M., Couderc, F., Cousinou, M. -C, Cuth, J., Cutts, D., Das, A., Davies, G., de Jong, S. J., De La Cruz-Burelo, E., Deliot, F., Demina, R., Denisov, D., Denisov, S. P., Desai, S., Deterre, C., DeVaughan, K., Diehl, H. T., Diesburg, M., Ding, P. F., Dominguez, A., Dubey, A., Dudko, L. V., Duperrin, A., Dutt, S., Eads, M., Edmunds, D., Ellison, J., Elvira, V. D., Enari, Y., Evans, H., Evdokimov, A., Evdokimov, V. N., Faure, A., Feng, L., Ferbel, T., Fiedler, F., Filthaut, F., Fisher, W., Fisk, H. E., Fortner, M., Fox, H., Franc, J., Fuess, S., Garbincius, P. H., Garcia-Bellido, A., Garcia-Gonzalez, J. A., Gavrilov, V., Geng, W., Gerber, C. E., Gershtein, Y., Ginther, G., Gogota, O., Golovanov, G., Grannis, P. D., Greder, S., Greenlee, H., Grenier, G., Gris, Ph., Grivaz, J. -F, Grohsjean, A., Gruenendahl, S., Gruenewald, M. W., Guillemin, T., Gutierrez, G., Gutierrez, P., Haley, J., Han, L., Harder, K., Harel, A., Hauptman, J. M., Hays, J., Head, T., Hebbeker, T., Hedin, D., Hegab, H., Heinson, A. P., Heintz, U., Hensel, C., Heredia-De La Cruz, I., Herner, K., Hesketh, G., Hildreth, M. D., Hirosky, R., Hoang, T., Hobbs, J. D., Hoeneisen, B., Hogan, J., Hohlfeld, M., Holzbauerbg, J. L., Howley, I., Hubacek, Z., Hynek, V., Iashvili, I., Ilchenko, Y., Illingvvorth, R., Ito, A. S., Jabeen, S., Jaffre, M., Jayasinghe, A., Jeong, M. S., Jesik, R., Jiang, P., Johns, K., Johnson, E., Johnson, M., Jonckheere, A., Jonsson, P., Joshi, J., Jung, A. W., Juste, A., Kajfasz, E., Karacheban, O., Karmanov, D., Katsanos, I., Kaur, M., Kehoe, R., Kermiche, S., Khalatyan, N., Khanov, A., Kharchilava, A., Kharzheev, Y. N., Kiselevich, I., Kohli, J. M., Kozelov, A. V., Kraus, J., Kumar, A., Kupco, A., Kurca, T., Kuzmin, V. A., Lammers, S., Lebrun, P., Lee, H. S., Lee, S. W., Lee, W. M., Lei, X., Lellouch, J., Li, D., Li, H., Li, L., Li, Q. Z., Lim, J. K., Lincoln, D., Linnemann, J., Lipaev, V. V., Lipton, R., Liu, H., Liu, Y., Lobodenko, A., Lokajicek, M., de Sa, R. Lopes, Luna-Garcia, R., Lyon, A. L., Maciel, A. K. A., Madar, R., Magana-Villalba, R., Malik, S., Malyshev, V. L., Mansour, J., Martinez-Ortega, J., McCarthy, R., McGivern, C. L., Meijer, M. M., Melnitchouk, A., Menezes, D., Mercadante, P. G., Merkin, M., Meyers, A., Meyer, J., Miconi, F., Mondal, N. K., Mulhearn, M., Nagy, E., Narain, M., Nayyar, R., Neal, H. A., Negret, J. P., Neustroev, P., Nguyen, H. T., Nunnemann, T., Orduna, J., Osman, N., Osta, J., Pal, A., Parashar, N., Parihar, V., Park, S. K., Partridge, R., Parua, N., Patwa, A., Penning, B., Perfilov, M., Peters, Y., Petridis, K., Petrillo, G., Petroff, P., Pleier, M. -A, Podstavkov, V. M., Popov, A. V., Prewitt, M., Price, D., Prokopenko, N., Qian, J., Quadt, A. T., Quinn, B., Ratoff, P. N., Razumov, I., Ripp-Baudot, I., Rizatdinova, F., Rominsky, M., Ross, A., Royon, C., Rubinov, P., Ruchti, R., Sajot, G., Sanchez-Hernandez, A., Sanders, M. P., Santos, A. S., Savage, G., Savitskyi, M., Sawyer, L., Scanlon, T., Schamberger, R. D., Scheglov, Y., Schellman, H., Schott, M., Schwanenberger, C., Schwienhorst, R., Sekaric, J., Severini, H., Shabalina, E., Shary, V., Shaw, S., Shchukin, A. A., Simak, V., Skubic, P., Slattery, P., Smirnov, D., Snow, G. R., Snow, Tt, Snyder, S., Soeldner-Rembold, S., Sonnenschein, L., Soustruznik, K., Stark, J., Stefaniuk, N., Stoyanova, D. A., Strauss, M., Suter, L., Svoisky, P., Titov, M., Tokmenin, V. V., Tsai, Y. -T, Tsybychev, D., Tuchming, B., Tully, C., Uvarov, L., Uvarov, S., Uzunyan, S., Van Kooten, R., van Leeuwen, W. M., Varelas, N., Varnes, E. W., Vasilyev, I. A., Verkheev, A. Y., Vertogradov, L. S., Verzocchi, M., Vesterinen, M., Vilanova, D., Vokac, P., Wahl, H. D., Wang, M. H. L. S., Warchol, T., Watts, G., Wayne, M., Weichert, J., Welty-Rieger, L., Williams, M. R. J., Wilson, G. W., Wobisch, M., Wood, D. R., Wyatt, T. R., Xie, Y., Yamada, R., Yang, S., Yasuda, T., Yatsunenko, Y. A., Ye, W., Ye, Z., Yin, H., Yip, K., Youn, S. W., Yu, J. M., Zennamo, J., Zhao, T. G., Zhou, B., Zhu, J., Zielinski, M., Zieminska, D., Zivkovic, L., Ctr Brasileiro Pesquisas Fis, Universidade do Estado do Rio de Janeiro (UERJ), Universidade Federal do ABC (UFABC), Univ Sci & Technol China, Univ Los Andes, Charles Univ Prague, Czech Tech Univ, Acad Sci Czech Republic, Univ San Francisco Quito, Univ Clermont Ferrand, Univ Grenoble 1, Aix Marseille Univ, Univ Paris Saclay, Univ Paris 06, Universidade de São Paulo (USP), CEA, Univ Strasbourg, Univ Lyon 1, Univ Lyon, Rhein Westfal TH Aachen, Univ Freiburg, Univ Gottingen, Johannes Gutenberg Univ Mainz, Univ Munich, Panjab Univ, Univ Delhi, Tata Inst Fundamental Res, Univ Coll Dublin, Korea Univ, CINVESTAV, Nikhef, Radboud Univ Nijmegen, Joint Inst Nucl Res, Inst Theoret & Expt Phys, Moscow MV Lomonosov State Univ, Inst High Energy Phys, Petersburg Nucl Phys Inst, ICREA, IFAE, Uppsala Univ, Taras Shevchenko Natl Univ Kyiv, Univ Lancaster, Univ London Imperial Coll Sci Technol & Med, Univ Manchester, Univ Arizona, Univ Calif Riverside, Florida State Univ, Fermilab Natl Accelerator Lab, Univ Illinois, Northwestern Univ, Indiana Univ, Purdue Univ Calumet, Univ Notre Dame, Iowa State Univ, Univ Kansas, Louisiana Tech Univ, Northeastern Univ, Univ Michigan, Michigan State Univ, Univ Mississippi, Univ Nebraska, Rutgers State Univ, Princeton Univ, SUNY Buffalo, Univ Rochester, SUNY Stony Brook, Brookhaven Natl Lab, Langston Univ, Univ Oklahoma, Oklahoma State Univ, Oregon State Univ, Brown Univ, Univ Texas Arlington, So Methodist Univ, Rice Univ, Univ Virginia, Univ Washington, Augustana Coll, Univ Liverpool, DESY, CONACyT, SLAC, UCL, IPN, Universidade Estadual Paulista (Unesp), KIT, US DOE, Amer Assoc Advancement Sci, Kiev Inst Nucl Res, Univ Maryland, European Org Nucl Res CERN, and Purdue Univ
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Science & Technology ,IDENTIFICATION ,PAIR PRODUCTION ,Physics ,SEMILEPTONIC DECAYS ,High Energy Physics::Phenomenology ,Astronomy & Astrophysics ,Nuclear & Particles Physics ,Physics, Particles & Fields ,Subatomär fysik ,Physics, Nuclear ,0202 Atomic, Molecular, Nuclear, Particle And Plasma Physics ,Physical Sciences ,Subatomic Physics ,HADRON COLLIDERS ,High Energy Physics::Experiment ,HEAVY QUARKS ,LHC ,TEVATRON ,Nuclear Experiment ,RUN-II ,DETECTOR - Abstract
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No. of bitstreams: 0 Previous issue date: 2016-06-10 Department of Energy (United States of America) National Science Foundation (United States of America) Alternative Energies and Atomic Energy Commission (France) National Center for Scientific Research/ National Institute of Nuclear and Particle Physics (France) Ministry of Education and Science of the Russian Federation (Russia) National Research Center Kurchatov Institute of the Russian Federation (Russia) Russian Foundation for Basic Research (Russia) National Council for the Development of Science and Technology (Brazil) Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ) Department of Atomic Energy (India) Department of Science and Technology (India) Administrative Department of Science, Technology and Innovation(Colombia) National Council of Science and Technology (Mexico) National Research Foundation of Korea (Korea) Foundation for Fundamental Research on Matter (The Netherlands) Science and Technology Facilities Council (United Kingdom) The Royal Society (United Kingdom) Ministry of Education, Youth and Sports (Czech Republic) Bundesministerium fur Bildung and Forschung (Federal Ministry of Education and Research) (Germany) Deutsche Forschungsgemeinschaft (German Research Foundation) (Germany) Science Foundation Ireland (Ireland) Swedish Research Council (Sweden) China Academy of Sciences (China) National Natural Science Foundation of China (China) Ministry of Education and Science of Ukraine (Ukraine) ICREA Science and Technology Facilities Council We present a measurement of the correlation between the spins of t and (t) over bar quarks produced in proton-antiproton collisions at the Tevatron Collider at a center-of-mass energy of 1.96 TeV. We apply a matrix element technique to dilepton and single-lepton+jets final states in data accumulated with the DO detector that correspond to an integrated luminosity of 9.7 fb(-1). The measured value of the correlation coefficient in the off-diagonal basis, O-off = 0.89 +/- 0.22 (stat + syst), is in agreement with the standard model prediction, and represents evidence for a top-antitop quark spin correlation difference from zero at a level of 4.2 standard deviations. (C) 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP(3). Ctr Brasileiro Pesquisas Fis, LAFEX, Rio De Janeiro, Brazil Univ Estado Rio de Janeiro, BR-20550011 Rio De Janeiro, Brazil Univ Fed ABC, Santo Andre, Brazil Univ Sci & Technol China, Hefei 230026, Peoples R China Univ Los Andes, Bogota, Colombia Charles Univ Prague, Fac Math & Phys, Ctr Particle Phys, Prague, Czech Republic Czech Tech Univ, CR-16635 Prague, Czech Republic Acad Sci Czech Republic, Inst Phys, Prague, Czech Republic Univ San Francisco Quito, Quito, Ecuador Univ Clermont Ferrand, CNRS IN2P3, LPC, Clermont, France Univ Grenoble 1, Inst Natl Polytech Grenoble, CNRS IN2P3, LPSC, Grenoble, France Aix Marseille Univ, CPPM, CNRS IN2P3, Marseille, France Univ Paris Saclay, CNRS IN2P3, Univ Paris Sud, LAL, Orsay, France Univ Paris 06, LPNHE, Paris, France Univ Paris 07, CNRS IN2P3, Paris, France CEA, Irfu, Saclay, France Univ Strasbourg, IPHC, CNRS IN2P3, Strasbourg, France Univ Lyon 1, IPNL, CNRS IN2P3, Villeurbanne, France Univ Lyon, Lyon, France Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany Univ Freiburg, Inst Phys, Hugstetter Str 55, D-79106 Freiburg, Germany Univ Gottingen, Inst Phys 2, Gottingen, Germany Johannes Gutenberg Univ Mainz, Inst Phys, Mainz, Germany Univ Munich, Munich, Germany Panjab Univ, Chandigarh 160014, India Univ Delhi, Delhi 110007, India Tata Inst Fundamental Res, Homi Bhabha Rd, Mumbai 400005, Maharashtra, India Univ Coll Dublin, Dublin 2, Ireland Korea Univ, Korea Detector Lab, Seoul, South Korea CINVESTAV, Mexico City 14000, DF, Mexico Nikhef, Sci Pk, Amsterdam, Netherlands Radboud Univ Nijmegen, NL-6525 ED Nijmegen, Netherlands Joint Inst Nucl Res, Dubna, Russia Inst Theoret & Expt Phys, Moscow 117259, Russia Moscow MV Lomonosov State Univ, Moscow, Russia Inst High Energy Phys, Protvino, Russia Petersburg Nucl Phys Inst, St Petersburg, Russia ICREA, Barcelona, Spain IFAE, Barcelona, Spain Uppsala Univ, Uppsala, Sweden Taras Shevchenko Natl Univ Kyiv, Kiev, Ukraine Univ Lancaster, Lancaster LA1 4YB, England Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England Univ Manchester, Manchester M13 9PL, Lancs, England Univ Arizona, Tucson, AZ 85721 USA Univ Calif Riverside, Riverside, CA 92521 USA Florida State Univ, Tallahassee, FL 32306 USA Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA Univ Illinois, Chicago, IL 60607 USA Univ Illinois, De Kalb, IL 60115 USA Northwestern Univ, Evanston, IL 60208 USA Indiana Univ, Bloomington, IN 47405 USA Purdue Univ Calumet, Hammond, IN 46323 USA Univ Notre Dame, Notre Dame, IN 46556 USA Iowa State Univ, Ames, IA 50011 USA Univ Kansas, Lawrence, KS 66045 USA Louisiana Tech Univ, Ruston, LA 71272 USA Northeastern Univ, Boston, MA 02115 USA Univ Michigan, Ann Arbor, MI 48109 USA Michigan State Univ, E Lansing, MI 48824 USA Univ Mississippi, University, MS 38677 USA Univ Nebraska, Lincoln, NE 68588 USA Rutgers State Univ, Piscataway, NJ 08855 USA Princeton Univ, Princeton, NJ 08544 USA SUNY Buffalo, Buffalo, NY 14260 USA Univ Rochester, Rochester, NY 14627 USA SUNY Stony Brook, Stony Brook, NY 11794 USA Brookhaven Natl Lab, Upton, NY 11973 USA Langston Univ, Langston, OK 73050 USA Univ Oklahoma, Norman, OK 73019 USA Oklahoma State Univ, Stillwater, OK 74078 USA Oregon State Univ, Corvallis, OR 97331 USA Brown Univ, Providence, RI 02912 USA Univ Texas Arlington, Arlington, TX 76019 USA So Methodist Univ, Dallas, TX 75275 USA Rice Univ, Houston, TX 77005 USA Univ Virginia, Charlottesville, VA 22904 USA Univ Washington, Seattle, WA 98195 USA Augustana Coll, Sioux Falls, SD USA Univ Liverpool, Liverpool L69 3BX, Merseyside, England DESY, Notkestr 85, Hamburg, Germany CONACyT, Mexico City, DF, Mexico SLAC, Menlo Pk, CA USA UCL, London, England IPN, Ctr Invest Computac, Mexico City 07738, DF, Mexico Univ Estadual Paulista, Sao Paulo, Brazil KIT, SCC, D-76128 Karlsruhe, Germany US DOE, Off Sci, Washington, DC 20585 USA Amer Assoc Advancement Sci, Washington, DC 20005 USA Kiev Inst Nucl Res, Kiev, Ukraine Univ Maryland, College Pk, MD 20742 USA European Org Nucl Res CERN, Geneva, Switzerland Purdue Univ, W Lafayette, IN 47907 USA Univ Estadual Paulista, Sao Paulo, Brazil Science and Technology Facilities Council: PP/D004284/1
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- 2016