Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
Phys Rev Lett. 2012 Jan 20;108(3):032004. Epub 2012 Jan 19.

Evidence for spin correlation in t ̅t production.

Abazov VM1, Abbott B, Acharya BS, Adams M, Adams T, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Aoki M, Askew A, Åsman B, Atkins S, Atramentov O, Augsten K, Avila C, BackusMayes J, Badaud F, Bagby L, Baldin B, Bandurin DV, Banerjee S, Barberis E, Baringer P, Barreto J, Bartlett JF, Bassler U, Bazterra V, Bean A, Begalli M, Belanger-Champagne C, Bellantoni L, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Blazey G, Blessing S, Bloom K, Boehnlein A, Boline D, Boos EE, Borissov G, Bose T, Brandt A, Brandt O, Brock R, Brooijmans G, Bross A, Brown D, Brown J, Bu XB, Buehler M, Buescher V, Bunichev V, Burdin S, Burnett TH, Buszello CP, Calpas B, Camacho-Pérez E, Carrasco-Lizarraga MA, Casey BC, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan KM, Chandra A, Chapon E, Chen G, Chevalier-Théry S, Cho DK, Cho SW, Choi S, Choudhary B, Cihangir S, Claes D, Clutter J, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Croc A, Cutts D, Das A, Davies G, De K, de Jong SJ, De la Cruz-Burelo E, Déliot F, Demina R, Denisov D, Denisov SP, Desai S, Deterre C, DeVaughan K, Diehl HT, Diesburg M, Ding PF, Dominguez A, Dorland T, Dubey A, Dudko LV, Duggan D, Duperrin A, Dutt S, Dyshkant A, Eads M, Edmunds D, Ellison J, Elvira VD, Enari Y, Evans H, Evdokimov A, Evdokimov VN, Facini G, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fortner M, Fox H, Fuess S, Garcia-Bellido A, García-Guerra GA, Gavrilov V, Gay P, Geng W, Gerbaudo D, Gerber CE, Gershtein Y, Ginther G, Golovanov G, Goussiou A, Grannis PD, Greder S, Greenlee H, Greenwood ZD, Gregores EM, Grenier G, Gris P, Grivaz JF, Grohsjean A, Grünendahl S, Grünewald MW, Guillemin T, Gutierrez G, Gutierrez P, Haas A, Hagopian S, Haley J, Han L, Harder K, Harel A, Hauptman JM, Hays J, Head T, Hebbeker T, Hedin D, Hegab H, Heinson AP, Heintz U, Hensel C, Heredia-De la Cruz I, Herner K, Hesketh G, Hildreth MD, Hirosky R, Hoang T, Hobbs JD, Hoeneisen B, Hohlfeld M, Hubacek Z, Hynek V, Iashvili I, Ilchenko Y, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jamin D, Jayasinghe A, Jesik R, Johns K, Johnson M, Jonckheere A, Jonsson P, Joshi J, Jung AW, Juste A, Kaadze K, Kajfasz E, Karmanov D, Kasper PA, Katsanos I, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YN, Kohli JM, Kozelov AV, Kraus J, Kulikov S, Kumar A, Kupco A, Kurča T, Kuzmin VA, Kvita J, Lammers S, Landsberg G, Lebrun P, Lee HS, Lee SW, Lee WM, Lellouch J, Li L, Li QZ, Lietti SM, Lim JK, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu Y, Lobodenko A, Lokajicek M, Lopes de Sa R, Lubatti HJ, Luna-Garcia R, Lyon AL, Maciel AK, Mackin D, Madar R, Magaña-Villalba R, Malik S, Malyshev VL, Maravin Y, Martínez-Ortega J, McCarthy R, McGivern CL, Meijer MM, Melnitchouk A, Menezes D, Mercadante PG, Merkin M, Meyer A, Meyer J, Miconi F, Mondal NK, Muanza GS, Mulhearn M, Nagy E, Naimuddin M, Narain M, Nayyar R, Neal HA, Negret JP, Neustroev P, Novaes SF, Nunnemann T, Obrant G, Orduna J, Osman N, Osta J, Otero y Garzón GJ, Padilla M, Pal A, Parashar N, Parihar V, Park SK, Partridge R, Parua N, Patwa A, Penning B, Perfilov M, Peters Y, Petridis K, Petrillo G, Pétroff P, Piegaia R, Pleier MA, Podesta-Lerma PL, Podstavkov VM, Polozov P, Popov AV, Prewitt M, Price D, Prokopenko N, Qian J, Quadt A, Quinn B, Rangel MS, Ranjan K, Ratoff PN, Razumov I, Renkel P, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Rominsky M, Ross A, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Salcido P, Sánchez-Hernández A, Sanders MP, Sanghi B, Santos AS, Savage G, Sawyer L, Scanlon T, Schamberger RD, Scheglov Y, Schellman H, Schliephake T, Schlobohm S, Schwanenberger C, Schwienhorst R, Sekaric J, Severini H, Shabalina E, Shary V, Shchukin AA, Shivpuri RK, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Smith KJ, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Sonnenschein L, Soustruznik K, Stark J, Stolin V, Stoyanova DA, Strauss M, Strom D, Stutte L, Suter L, Svoisky P, Takahashi M, Tanasijczuk A, Titov M, Tokmenin VV, Tsai YT, Tschann-Grimm K, Tsybychev D, Tuchming B, Tully C, Uvarov L, Uvarov S, Uzunyan S, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Verdier P, Vertogradov LS, Verzocchi M, Vesterinen M, Vilanova D, Vokac P, Wahl HD, Wang MH, Warchol J, Watts G, Wayne M, Weber M, Welty-Rieger L, White A, Wicke D, Williams MR, Wilson GW, Wobisch M, Wood DR, Wyatt TR, Xie Y, Yamada R, Yang WC, Yasuda T, Yatsunenko YA, Ye Z, Yin H, Yip K, Youn SW, Yu J, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zivkovic L; D0 Collaboration.

Author information

  • 1Joint Institute for Nuclear Research, Dubna, Russia.

Abstract

We present a measurement of the ratio of events with correlated t and t ̅t spins to the total number of t ̅t events. This ratio f is evaluated using a matrix-element-based approach in 729 t ̅t candidate events with a single lepton ℓ (electron or muon) and at least four jets. The analyzed p ̅p collisions data correspond to an integrated luminosity of 5.3 fb(-1) and were collected with the D0 detector at the Fermilab Tevatron collider operating at a center-of-mass energy √s=1.96 TeV. Combining this result with a recent measurement of f in dileptonic final states, we find f in agreement with the standard model. In addition, the combination provides evidence for the presence of spin correlation in t ̅t events with a significance of more than 3 standard deviations.

© 2012 American Physical Society

PMID:
22400731
[PubMed]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for American Physical Society
    Loading ...
    Write to the Help Desk