Observation of Top Quark Production in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mrow><mml:mover><mml:mrow><mml:mi mathvariant="italic">p</mml:mi></mml:mrow><mml:mrow><mml:mi>¯</mml:mi></mml:mrow></mml:mover></mml:mrow></mml:mrow><mml:mi mathvariant="italic">p</mml:mi></mml:math>Collisions with the Collider Detector at Fermilab

F. Abe(High Energy Accelerator Research Organization), H. Akimoto(University of Tsukuba), A. Akopian(Rockefeller University), M. Albrow(Fermi National Accelerator Laboratory), S. R. Amendolia(Scuola Normale Superiore), D. Amidei(University of Michigan), J. Antoš(Academia Sinica), C. Anway-Wiese(University of California, Los Angeles), S. Aota(University of Tsukuba), G. Apollinari(Rockefeller University), T. Asakawa(University of Tsukuba), W. Ashmanskas(Lawrence Berkeley National Laboratory), M. Ataç(Fermi National Accelerator Laboratory), P. Auchincloss(University of Rochester), F. Azfar(University of Pennsylvania), P. Azzi(University of Padua), N. Bacchetta(University of Padua), W. Badgett(University of Michigan), S. Bagdasarov(Rockefeller University), M. W. Bailey(University of New Mexico), J. Bao(Yale University), P. de Barbaro(University of Rochester), A. Barbaro‐Galtieri(Lawrence Berkeley National Laboratory), V. E. Barnes(Purdue University West Lafayette), B. A. Barnett(Johns Hopkins University), P. Bartalini(Scuola Normale Superiore), G. Bauer(Massachusetts Institute of Technology), T. Baumann(Harvard University Press), F. Bedeschi(Scuola Normale Superiore), S. Behrends(Brandeis University), S. Belforte(Scuola Normale Superiore), G. Bellettini(Scuola Normale Superiore), J. Bellinger(University of Wisconsin–Madison), D. Benjamin(Texas Tech University), J. Benlloch(Massachusetts Institute of Technology), J. R. Bensinger(Brandeis University), D. Benton(University of Pennsylvania), A. Beretvas(Fermi National Accelerator Laboratory), J. P. Bergé(Fermi National Accelerator Laboratory), S. Bertolucci(Istituto Nazionale di Fisica Nucleare), A. Bhatti(Rockefeller University), K. Biery(University of Toronto), M. Binkley(Fermi National Accelerator Laboratory), D. Bisello(University of Padua), R. E. Blair(Argonne National Laboratory), C. Blocker(Brandeis University), A. Bodek(University of Rochester), W. Bokhari(Massachusetts Institute of Technology), V. Bolognesi(Scuola Normale Superiore), D. Bortoletto(Purdue University West Lafayette), J. Boudreau(University of Pittsburgh), G. Brandenburg(Harvard University Press), L. Breccia(Istituto Nazionale di Fisica Nucleare), C. Bromberg(Michigan State University), E. Buckley‐Geer(Fermi National Accelerator Laboratory), H. S. Budd(University of Rochester), K. Burkett(University of Michigan), G. Busetto(University of Padua), R. G. Wagner(Fermi National Accelerator Laboratory), K. L. Byrum(Argonne National Laboratory), J. Cammerata(Johns Hopkins University), C. Campagnari(Fermi National Accelerator Laboratory), M. Campbell(University of Michigan), A. Caner(Fermi National Accelerator Laboratory), W. Carithers(Lawrence Berkeley National Laboratory), D. Carlsmith(University of Wisconsin–Madison), A. Castro(University of Padua), G. Cauz(Scuola Normale Superiore), Y. Cen(University of Rochester), F. Cervelli(Scuola Normale Superiore), H. Y. Chao(Academia Sinica), J. Chapman(University of Michigan), M.-T. Cheng(Academia Sinica), G. Chiarelli(Scuola Normale Superiore), T. Chikamatsu(University of Tsukuba), C. N. Chiou(Academia Sinica), L. Christofek(University of Illinois System), S. Cihangir(Fermi National Accelerator Laboratory), A. Clark(Scuola Normale Superiore), M. Cobal(Scuola Normale Superiore), M. Contreras(University of Chicago), J. Conway(Rutgers, The State University of New Jersey), J. Cooper(Fermi National Accelerator Laboratory), M. Cordelli(Istituto Nazionale di Fisica Nucleare), C. Couyoumtzelis(Scuola Normale Superiore), D. Crane(Argonne National Laboratory), D. Cronin-Hennessy(Duke University), R. Culbertson(University of Chicago), J. D. Cunningham(Brandeis University), T. Daniels(Massachusetts Institute of Technology), F. DeJongh(Fermi National Accelerator Laboratory), S. Delchamps(Fermi National Accelerator Laboratory), S. Dell’Agnello(Scuola Normale Superiore), M. Dell’Orso(Scuola Normale Superiore), L. Demortier(Rockefeller University), B. Denby(Scuola Normale Superiore), M. Deninno(Istituto Nazionale di Fisica Nucleare), P. F. Derwent(University of Michigan), T. Devlin(Rutgers, The State University of New Jersey), M. Dickson(University of Rochester), J. Dittmann(Duke University), S. Donati(Scuola Normale Superiore), R. B. Drucker(Lawrence Berkeley National Laboratory), A. Dunn(University of Michigan), N. Eddy(University of Michigan), K. Einsweiler(Lawrence Berkeley National Laboratory), J. E. Elias(Fermi National Accelerator Laboratory), R. Ely(Lawrence Berkeley National Laboratory), E. Engels(University of Pittsburgh), D. Errede(University of Illinois System), S. Errede(University of Illinois System), Q. Fan(University of Rochester), I. Fiori(Istituto Nazionale di Fisica Nucleare), B. Flaugher(Fermi National Accelerator Laboratory), G. W. Foster(Fermi National Accelerator Laboratory), M. Franklin(Harvard University Press), M. Frautschi(University of New Mexico), J. Freeman(Fermi National Accelerator Laboratory), J. Friedman(Massachusetts Institute of Technology), H. Frisch(University of Chicago), T. A. Fuess(Argonne National Laboratory), Y. Fukui(High Energy Accelerator Research Organization), S. Funaki(University of Tsukuba), G. Gagliardi(University of Pittsburgh), S. Galeotti(Scuola Normale Superiore), M. Gallinaro(University of Padua), M. Garcia-Sciveres(Lawrence Berkeley National Laboratory), A. F. Garfinkel(Purdue University West Lafayette), C. Gay(Harvard University Press), S. Geer(Fermi National Accelerator Laboratory), D. W. Gerdes(University of Michigan), P. Giannetti(Scuola Normale Superiore), N. Giokaris(Rockefeller University), P. Giromini(Istituto Nazionale di Fisica Nucleare), L. Gladney(University of Pennsylvania), D. Glenzinski(Johns Hopkins University), M. Gold(University of New Mexico), J. Suarez Gonzalez(University of Pennsylvania), A. Gordon(Harvard University Press), A. T. Goshaw(Duke University), K. Goulianos(Rockefeller University), H. Grassmann(Fermi National Accelerator Laboratory), L. Groer(Rutgers, The State University of New Jersey), C. Grosso-Pilcher(University of Chicago), G. Guillian(University of Michigan), R. S. Guo(Academia Sinica), C. Haber(Lawrence Berkeley National Laboratory), S. R. Hahn(Fermi National Accelerator Laboratory), R. Hamilton(Harvard University Press), R. Handler(University of Wisconsin–Madison), R. M. Hans(Yale University), K. Hara(University of Tsukuba), B. Harral(University of Pennsylvania), R. M. Harris(Fermi National Accelerator Laboratory), S. A. Hauger(Duke University), J. Hauser(University of California, Los Angeles), C. Hawk(Rutgers, The State University of New Jersey), E. Hayashi(University of Tsukuba), J. J. Heinrich(University of Pennsylvania), M. Hohlmann(Argonne National Laboratory), C. Holck(University of Pennsylvania), R. Hollebeek(University of Pennsylvania), L. Holloway(University of Illinois System), A. Hölscher(University of Toronto), S. J. Hong(University of Michigan), G. Houk(University of Pennsylvania), P. Hu(University of Pittsburgh), T. B. Huffman(University of Pittsburgh), R. Hughes(University of Rochester), J. Huston(Michigan State University), J. Huth(Harvard University Press), J. Hylen(Fermi National Accelerator Laboratory), H. Ikeda(University of Tsukuba), M. Incagli(Scuola Normale Superiore), J. Incandela(Fermi National Accelerator Laboratory), J. Iwai(University of Tsukuba), Y. Iwata(Hiroshima University), H. Jensen(Fermi National Accelerator Laboratory), U. Joshi(Fermi National Accelerator Laboratory), R. W. Kadel(Lawrence Berkeley National Laboratory), E. Kajfasz(Fermi National Accelerator Laboratory), T. Kamon(Texas A&M University), T. Kaneko(University of Tsukuba), K. Karr(Tufts University), H. Kasha(Yale University), Y. Kato(Osaka City University), L. Keeble(Istituto Nazionale di Fisica Nucleare), K. Kelley(Massachusetts Institute of Technology), R. D. Kennedy(Rutgers, The State University of New Jersey), R. Kephart(Fermi National Accelerator Laboratory), P. Kesten(Lawrence Berkeley National Laboratory), D. Kestenbaum(Harvard University Press), R. M. Keup(University of Illinois System), H. Keutelian(Fermi National Accelerator Laboratory), F. Keyvan(University of California, Los Angeles), B. J. Kim(University of Rochester), D. H. Kim(Fermi National Accelerator Laboratory), H. S. Kim(University of Toronto), S. B. Kim(University of Tsukuba), S. H. Kim(University of Tsukuba), Y. K. Kim(Lawrence Berkeley National Laboratory), L. Kirsch(Brandeis University), P. Koehn(University of Rochester), K. Kondo(University of Tsukuba), J. Konigsberg(Harvard University Press), S. Köpp(University of Chicago), K. Kordas(University of Toronto), W. Koska(Fermi National Accelerator Laboratory), E. Kovacs(Fermi National Accelerator Laboratory), W. Kowald(Duke University), M. Krasberg(University of Michigan), J. Kroll(Fermi National Accelerator Laboratory), M. Kruse(Purdue University West Lafayette), T. Kuwabara(University of Tsukuba), S. E. Kuhlmann(Argonne National Laboratory), E. Kuns(Rutgers, The State University of New Jersey), A. T. Laasanen(Purdue University West Lafayette), N. Labanca(Scuola Normale Superiore), S. Lammel(Fermi National Accelerator Laboratory), J. I. Lamoureux(Brandeis University), T. LeCompte(University of Illinois System), S. Leone(Scuola Normale Superiore), J. D. Lewis(Fermi National Accelerator Laboratory), P. Limon(Fermi National Accelerator Laboratory), M. Lindgren(University of California, Los Angeles), T. M. Liss(University of Illinois System), N. Lockyer(University of Pennsylvania), O. R. Long(University of Pennsylvania), C. Loomis(Rutgers, The State University of New Jersey), M. Loreti(University of Padua), J. Lu(Texas A&M University), D. Lucchesi(Scuola Normale Superiore), P. Lukens(Fermi National Accelerator Laboratory), S. Lusin(University of Wisconsin–Madison), J. Lys(Lawrence Berkeley National Laboratory), K. Maeshima(Fermi National Accelerator Laboratory), A. Maghakian(Rockefeller University), P. Maksimovic(Massachusetts Institute of Technology), M. Mangano(Scuola Normale Superiore), J. Mansour(Michigan State University), M. Mariotti(University of Padua), J. P. Marriner(Fermi National Accelerator Laboratory), A. Martin(University of Illinois System), J. A. J. Matthews(University of New Mexico), R. Mattingly(Massachusetts Institute of Technology), P. McIntyre(Texas A&M University), P. Mélèse(Rockefeller University), A. Menzione(Scuola Normale Superiore), E. Meschi(Scuola Normale Superiore), S. Metzler(University of Pennsylvania), C. Miao(University of Michigan), G. Michail(Harvard University Press), S. Mikamo(High Energy Accelerator Research Organization), Robert F. Miller(Michigan State University), H. Minato(University of Tsukuba), S. Miscetti(Istituto Nazionale di Fisica Nucleare), M. Mishina(High Energy Accelerator Research Organization), H. Mitsushio(University of Tsukuba), T. Miyamoto(University of Tsukuba), S. Miyashita(University of Tsukuba), Y. Morita(High Energy Accelerator Research Organization), J. Mueller(University of Pittsburgh), A. Mukherjee(Fermi National Accelerator Laboratory), Th. Müller(University of California, Los Angeles), P. Murat(Scuola Normale Superiore), H. Nakada(University of Tsukuba), I. Nakano(University of Tsukuba), Charles A. Nelson(Fermi National Accelerator Laboratory), D. Neuberger(University of California, Los Angeles), C. Newman-Holmes(Fermi National Accelerator Laboratory), M. Ninomiya(University of Tsukuba), L. Nodulman(Argonne National Laboratory), S. Ogawa(University of Tsukuba), S. H. Oh(Duke University), K. E. Ohl(Yale University), T. Ohmoto(Hiroshima University), T. Ohsugi(Hiroshima University), R. Oishi(University of Tsukuba), M. Okabe(University of Tsukuba), T. Okusawa(Osaka City University), Rebecca Oliver(University of Pennsylvania), J. Olsen(University of Wisconsin–Madison), C. Pagliarone(Istituto Nazionale di Fisica Nucleare), R. Paoletti(Scuola Normale Superiore), V. Papadimitriou(Texas Tech University), S. P. Pappas(Yale University), S. Park(Fermi National Accelerator Laboratory), J. Patrick(Fermi National Accelerator Laboratory), G. Pauletta(Scuola Normale Superiore), M. Paulini(Lawrence Berkeley National Laboratory), L. Pescara(University of Padua), Michael Peters(Lawrence Berkeley National Laboratory), T. J. Phillips(Duke University), G. Piacentino(Istituto Nazionale di Fisica Nucleare), M. Pillai(University of Rochester), K. Pitts(Fermi National Accelerator Laboratory), R. Plunkett(Fermi National Accelerator Laboratory), L. Pondrom(University of Wisconsin–Madison), J. Proudfoot(Argonne National Laboratory), F. Ptohos(Harvard University Press), G. Punzi(Scuola Normale Superiore), K. Ragan(University of Toronto), A. Ribon(University of Padua), F. Rimondi(Istituto Nazionale di Fisica Nucleare), L. Ristori(Scuola Normale Superiore), W. J. Robertson(Duke University), T. Rodrigo(Fermi National Accelerator Laboratory), J. Romano(University of Chicago), L. Rosenson(Massachusetts Institute of Technology), R. Roser(University of Illinois System), W. K. Sakumoto(University of Rochester), D. Saltzberg(University of Chicago), A. Sansoni(Istituto Nazionale di Fisica Nucleare), L. Santi(Scuola Normale Superiore), H. Sato(University of Tsukuba), V. Scarpine(Texas A&M University), P. Schlabach(Harvard University Press), E. E. Schmidt(Fermi National Accelerator Laboratory), M. P. Schmidt(Yale University), C. Sciacca(Scuola Normale Superiore), A. Scribano(Scuola Normale Superiore), S. Segler(Fermi National Accelerator Laboratory), S. Seidel(University of New Mexico), Y. Seiya(University of Tsukuba), G. Sganos(University of Toronto), A. Sgolacchia(Istituto Nazionale di Fisica Nucleare), M. Shapiro(Lawrence Berkeley National Laboratory), N. M. Shaw(Purdue University West Lafayette), P. Sherwood(Purdue University West Lafayette), P. F. Shepard(University of Pittsburgh), M. Shimojima(University of Tsukuba), M. J. Shochet(University of Chicago), J. Siegrist(Lawrence Berkeley National Laboratory), A. Sill(Texas Tech University), P. Sinervo(University of Toronto), P. Singh(University of Pittsburgh), J. Skarha(Johns Hopkins University), K. Śliwa(Tufts University), D. A. Smith(Scuola Normale Superiore), F. D. Snider(Johns Hopkins University), T. Song(University of Michigan), J. Spalding(Fermi National Accelerator Laboratory), P. Sphicas(Massachusetts Institute of Technology), L. Spiegel(Fermi National Accelerator Laboratory), A. Spies(Johns Hopkins University), L. Stanco(University of Padua), J. Steele(University of Wisconsin–Madison), A. Stefanini(Scuola Normale Superiore), K. Strahl(University of Toronto), J. Strait(Fermi National Accelerator Laboratory), D. Stuart(Fermi National Accelerator Laboratory), G. W. Sullivan(University of Chicago), A. Soumarokov(Academia Sinica), K. Sumorok(Massachusetts Institute of Technology), J. Suzuki(University of Tsukuba), Tomoya Takada(University of Tsukuba), T. Takahashi(Osaka City University), T. Takano(University of Tsukuba), K. Takikawa(University of Tsukuba), N. Tamura(Hiroshima University), G. F. Tartarelli(Scuola Normale Superiore), W. Taylor(University of Toronto), P. K. Teng(Academia Sinica), Y. Teramoto(Osaka City University), S. Tether(Massachusetts Institute of Technology), D. Theriot(Fermi National Accelerator Laboratory), T. L. Thomas(University of New Mexico), R. P. Thun(University of Michigan), M. Timko(Tufts University), P. Tipton(University of Rochester), A. Titov(Rockefeller University), S. Tkaczyk(Fermi National Accelerator Laboratory), D. Toback(University of Chicago), K. Tollefson(University of Rochester), A. Tollestrup(Fermi National Accelerator Laboratory), J. Tonnison(Purdue University West Lafayette), J. F. de Trocóniz(Harvard University Press), S. Truitt(University of Michigan), J. Tseng(Johns Hopkins University), N. Turini(Scuola Normale Superiore), T. Uchida(Scuola Normale Superiore), N. Uemura(University of Tsukuba), F. Ukegawa(University of Pennsylvania), G. Unal(University of Pennsylvania), S. C. van den Brink(University of Pittsburgh), S. Vejcik(University of Michigan), G. Velev(Scuola Normale Superiore), R. Vidal(Fermi National Accelerator Laboratory), M. Vondracek(University of Illinois System), D. Vucinic(Massachusetts Institute of Technology), R. G. Wagner(Argonne National Laboratory), R. L. Wagner(Argonne National Laboratory), J. Wahl(University of Chicago), R. C. Walker(University of Rochester), C. Wang(Duke University), C. H. Wang(Duke University), G. Wang(Scuola Normale Superiore), J. Wang(University of Chicago), M. J. Wang(Academia Sinica), Q. F. Wang(Rockefeller University), A. Warburton(University of Toronto), G. Watts(University of Rochester), T. Watts(Rutgers, The State University of New Jersey), R. Webb(Texas A&M University), C. Wei(Duke University), C. Wendt(University of Wisconsin–Madison), H. Wenzel(Lawrence Berkeley National Laboratory), W. C. Wester(Fermi National Accelerator Laboratory), A. B. Wicklund(Argonne National Laboratory), E. Wicklund(Fermi National Accelerator Laboratory), R. Wilkinson(University of Pennsylvania), H. H. Williams(University of Pennsylvania), P. Wilson(University of Chicago), B. L. Winer(University of Rochester), D. Wolinski(University of Michigan), J. Wolinski(Texas A&M University), X. Wu(Scuola Normale Superiore), J. Wyss(University of Padua), A. Yagil(Fermi National Accelerator Laboratory), W. Yao(Lawrence Berkeley National Laboratory), K. Yasuoka(University of Tsukuba), Y. Ye(University of Toronto), G. P. Yeh(Fermi National Accelerator Laboratory), P. Yeh(Academia Sinica), M. Yin(Duke University), J. Yoh(Fermi National Accelerator Laboratory), C. Yosef(Michigan State University), T. Yoshida(Osaka City University), D. Yovanovitch(Fermi National Accelerator Laboratory), I. Yu(Yale University), J. C. Yun(Fermi National Accelerator Laboratory), A. Zanetti(Scuola Normale Superiore), F. Zetti(Scuola Normale Superiore), L. Zhang(University of Wisconsin–Madison), W. Zhang(University of Pennsylvania), S. Zucchelli(Istituto Nazionale di Fisica Nucleare)
Physical Review Letters
April 3, 1995
10.1103/physrevlett.74.2626
Cited by 1,478Open Access
Full Text

Abstract

We establish the existence of the top quark using a $67{\mathrm{pb}}^{\ensuremath{-}1}$ data sample of $\overline{p}p$ collisions at $\sqrt{s}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1.8\mathrm{TeV}$ collected with the Collider Detector at Fermilab (CDF). Employing techniques similar to those we previously published, we observe a signal consistent with $t\overline{t}$ decay to $\mathrm{WWb}\overline{b}$, but inconsistent with the background prediction by $4.8\ensuremath{\sigma}$. Additional evidence for the top quark is provided by a peak in the reconstructed mass distribution. We measure the top quark mass to be $176\ifmmode\pm\else\textpm\fi{}8(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}10(\mathrm{syst})\mathrm{GeV}{/c}^{2}$, and the $t\overline{t}$ production cross section to be ${6.8}_{\ensuremath{-}2.4}^{+3.6}\mathrm{pb}$.

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