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Evidence for top quark production in p̄p collisions at s =1.8 TeV

Physical Review Letters 73:2 (1994) 225-231

Authors:

F Abe, MG Albrow, SR Amendolia, D Amidei, J Antos, C Anway-Wiese, G Apollinari, H Areti, P Auchincloss, M Austern, F Azfar, P Azzi, N Bacchetta, W Badgett, MW Bailey, J Bao, P De Barbaro, A Barbaro-Galtieri, VE Barnes, BA Barnett, P Bartalini, G Bauer, T Baumann, F Bedeschi, S Behrends, S Belforte, G Bellettini, J Bellinger, D Benjamin, J Benlloch, J Bensinger, D Benton, A Beretvas, JP Berge, S Bertolucci, A Bhatti, K Biery, M Binkley, F Bird, D Bisello, RE Blair, C Blocker, A Bodek, V Bolognesi, D Bortoletto, C Boswell, T Boulos, G Brandenburg, E Buckley-Geer, HS Budd, K Burkett, G Busetto, A Byon-Wagner, KL Byrum, C Campagnari, M Campbell, A Caner, W Carithers, D Carlsmith, A Castro, Y Cen, F Cervelli, J Chapman, MT Cheng, G Chiarelli, T Chikamatsu, S Cihangir, AG Clark, M Cobal, M Contreras, J Conway, J Cooper, M Cordelli, DP Coupal, D Crane, JD Cunningham, T Daniels, F DeJongh, S Delchamps, S Dell'Agnello, M Dell'Orso, L Demortier, B Denby, M Deninno, PF Derwent, T Devlin, M Dickson, S Donati, RB Drucker, A Dunn, K Einsweiler, JE Elias, R Ely, E Engels, S Eno, D Errede, S Errede, Q Fan, B Farhat, I Fiori

Abstract:

We summarize a search for the top quark with the Collider Detector at Fermilab (CDF) in a sample of p̄p collisions at s =1.8 TeV with an integrated luminosity of 19.3 pb-1. We find 12 events consistent with either two W bosons, or a W boson and at least one b jet. The probability that the measured yield is consistent with the background is 0.26%. Though the statistics are too limited to establish firmly the existence of the top quark, a natural interpretation of the excess is that it is due to tt̄ production. Under this assumption, constrained fits to individual events yield a top quark mass of 174±10-12+13 GeV/c2. The tt̄ production cross section is measured to be 13.9-4.8+6.1 pb. © 1994 The American Physical Society.
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Precision measurement of the prompt photon cross section in pp̄ collisions at s=1.8 TeV

Physical Review Letters 73:20 (1994) 2662-2666

Authors:

F Abe, MG Albrow, D Amidei, J Antos, C Anway-Wiese, G Apollinari, H Areti, M Atac, P Auchincloss, F Azfar, P Azzi, N Bacchetta, W Badgett, MW Bailey, J Bao, P De Barbaro, A Barbaro-Galtieri, VE Barnes, BA Barnett, P Bartalini, G Bauer, T Baumann, F Bedeschi, S Behrends, S Belforte, G Gellettini, J Bellinger, D Benjamin, J Benlloch, J Bensinger, D Benton, A Beretvas, JP Berge, S Bertolucci, A Bhatti, K Biery, M Binkley, F Bird, D Bisello, RE Blair, C Blocker, A Bodek, W Bokhari, V Bolognesi, D Bortoletto, C Boswell, T Boulos, G Brandenburg, E Buckley-Geer, HS Budd, K Burkett, G Busetto, A Byon-Wagner, KL Byrum, J Cammerata, C Campagnari, M Campbell, A Caner, W Carithers, D Carlsmith, A Castro, Y Cen, F Cervelli, J Chapman, MT Cheng, G Chiarelli, T Chikamatsu, S Cihangir, AG Clark, M Cobal, M Contreras, J Conway, J Cooper, M Cordelli, D Crane, JD Cunningham, T Daniels, F Dejongh, S Delchamps, S Dell'Agnello, M Dell'Orso, L Demortier, B Denby, M Deninno, PF Derwent, T Devlin, M Dickson, S Donati, RB Drucker, A Dunn, K Einsweiler, JE Elias, R Ely, E Engels, S Eno, D Errede, S Errede, Q Fan, B Farhat, I Fiori

Abstract:

A prompt photon cross section measurement from the Collider Detector at Fermilab experiment is presented. Detector and trigger upgrades, as well as 6 times the integrated luminosity compared with our previous publication, have contributed to a much more precise measurement and extended PT range. As before, QCD calculations agree qualitatively with the measured cross section, but the data has a steeper slope than the calculations. © 1994 The American Physical Society.
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Search for the top quark decaying to a charged higgs boson in p̄p collisions at s=1.8 TeV

Physical Review Letters 73:20 (1994) 2667-2671

Authors:

F Abe, MG Albrow, D Amidei, J Antos, C Anway-Wiese, G Apollinari, H Areti, M Atac, P Auchincloss, F Azfar, P Azzi, N Bacchetta, W Badgett, MW Bailey, J Bao, P De Barbaro, A Barbaro-Galtieri, VE Barnes, BA Barnett, P Bartalini, G Bauer, T Baumann, F Bedeschi, S Behrends, S Belforte, G Bellettini, J Bellinger, D Benjamin, J Benlloch, J Bensinger, D Benton, A Beretvas, JP Berge, S Bertolucci, A Bhatti, K Biery, M Binkley, F Bird, D Bisello, RE Blair, C Blocker, A Bodek, V Bolognesi, D Bortoletto, C Boswell, T Boulos, G Brandenburg, E Buckley-Geer, HS Budd, K Burkett, G Busetto, A Byon-Wagner, KL Byrum, J Cammerata, C Campagnari, M Campbell, A Caner, W Carithers, D Carlsmith, A Castro, Y Cen, F Cervelli, J Chapman, MT Cheng, G Chiarelli, T Chikamatsu, S Cihangir, AG Clark, M Cobal, M Contreras, J Conway, J Cooper, M Cordelli, D Crane, JD Cunningham, T Daniels, F DeJongh, S Delchamps, S Dell'Agnello, M Dell'Orso, L Demortier, B Denby, M Deninno, PF Derwent, T Devlin, M Dickson, S Donati, RB Drucker, A Dunn, K Einsweiler, JE Elias, R Ely, E Engels, S Eno, D Errede, S Errede, Q Fan, B Farhat, I Fiori, B Flaugher

Abstract:

We present the results of a search in p̄p collisions at s=1.8 TeV for the top quark decaying to a charged Higgs boson (H±). We search for dilepton final states from the decay chain tt̄→HH (or HW, or WW) + bb̄→ll+X. In a sample of 19.3 pb-1 collected during 1992-93 with the Collider Detector at Fermilab, we observe 2 events with a background estimation of 3.0 ± 1.0 events. Limits at 95% C.L. in the (Mtop,MH±) plane are presented. For the case Mtop
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MEASUREMENT OF THE B+ AND B0 MESON LIFETIMES

PHYSICAL REVIEW LETTERS 72:22 (1994) 3456-3460

Authors:

F ABE, M ALBROW, D AMIDEI, C ANWAYWIESE, G APOLLINARI, H ARETI, P AUCHINCLOSS, F AZFAR, P AZZI, N BACCHETTA, W BADGETT, MW BAILEY, J BAO, P DEBARBARO, A BARBAROGALTIERI, VE BARNES, BA BARNETT, P BARTALINI, G BAUER, T BAUMANN, F BEDESCHI, S BEHRENDS, S BELFORTE, G BELLETTINI, J BELLINGER, D BENJAMIN, J BENLLOCH, D BENTON, A BERETVAS, JP BERGE, S BERTOLUCCI, A BHATTI, K BIERY, M BINKLEY, F BIRD, D BISELLO, RE BLAIR, C BLOCKER, A BODEK, V BOLOGNESI, D BORTOLETTO, C BOSWELL, T BOULOS, G BRANDENBURG, E BUCKLEYGEER, HS BUDD, K BURKETT, G BUSETTO, A BYONWAGNER, KL BYRUM, C CAMPAGNARI, M CAMPBELL, A CANER, W CARITHERS, D CARLSMITH, A CASTRO, Y CEN, F CERVELLI, J CHAPMAN, G CHIARELLI, T CHIKAMATSU, S CIHANGIR, AG CLARK, M COBAL, M CONTRERAS, J COOPER, M CORDELLI, DP COUPAL, D CRANE, JD CUNNINGHAM, T DANIELS, F DEJONGH, S DELLAGNELLO, M DELLORSO, L DEMORTIER, B DENBY, M DENINNO, PF DERWENT, T DEVLIN, M DICKSON, S DONATI, JP DONE, RB DRUCKER, A DUNN, K EINSWEILER, JE ELIAS, R ELY, E ENGELS, S ENO, D ERREDE, S ERREDE, A ETCHEGOYEN, Q FAN, B FARHAT, I FIORI, B FLAUGHER, GW FOSTER, M FRANKLIN, M FRAUTSCHI, J FREEMAN, J FRIEDMAN, H FRISCH, A FRY, TA FUESS, Y FUKUI, S FUNAKI, G GAGLIARDI, M GALLINARO, AF GARFINKEL, S GEER, DW GERDES, P GIANNETTI, N GIOKARIS, P GIROMINI, L GLADNEY, D GLENZINSKI, M GOLD, J GONZALEZ, A GORDON, AT GOSHAW, K GOULIANOS, H GRASSMANN, A GREWAL, G GRIECO, L GROER, C GROSSOPILCHER, C HABER, SR HAHN, R HAMILTON, R HANDLER, RM HANS, K HARA, B HARRAL, RM HARRIS, SA HAUGER, J HAUSER, C HAWK, J HEINRICH, D HENNESSY, R HOLLEBEEK, L HOLLOWAY, A HOLSCHER, S HONG, G HOUK, P HU, BT HUFFMAN, R HUGHES, P HURST, J HUSTON, J HUTH, J HYLEN, M NCAGLI, J INCANDELA, H ISO, H JENSEN, CP JESSOP, U JOSHI, RW KADEL, E KAJFASZ, T KAMON, T KANEKO, DA KARDELIS, H KASHA, Y KATO, L KEEBLE, RD KENNEDY, R KEPHART, P KESTEN, D KESTENBAUM, RM KEUP, H KEUTELIAN, F KEYVAN, DH KIM, HS KIM, SB KIM, SH KIM, YK KIM, L KIRSCH, P KOEHN, K KONDO, J KONIGSBERG, S KOPP, K KORDAS, W KOSKA, E KOVACS, M KRASBERG, J KROLL, M KRUSE, SE KUHLMANN, E KUNS, AT LAASANEN, S LAMMEL, JI LAMOUREUX, T LECOMPTE, S LEONE, JD LEWIS, P LIMON, M LINDGREN, TM LISS, N LOCKYER, O LONG, M LORETI, EH LOW, D LUCCHESI, CB LUCHINI, P LUKENS, P MAAS, K MAESHIMA, A MAGHAKIAN, M MANGANO, J MANSOUR, M MARIOTTI, JP MARRINER, A MARTIN, JAJ MATTHEWS, R MATTINGLY, P MCINTYRE, P MELESE, A MENZIONE, E MESCHI, G MICHAIL, S MIKAMO, M MILLER, T MIMASHI, S MISCETTI, T MULLER, P MUSGRAVE, LF NAKAE, I NAKANO, C NELSON, D NEUBERGER, C NEWMANHOLMES, L NODULMAN, S OGAWA, KE OHL, R OISHI, T OKUSAWA, C PAGLIARONE, R PAOLETTI, V PAPADIMITRIOU, S PARK, J PATRICK, G PAULETTA, L PESCARA, MD PETERS, TJ PHILLIPS, G PIACENTINO, M PILLAI, R PLUNKETT, L PONDROM, N PRODUIT, J PROUDFOOT, F PTOHOS, G PUNZI, K RAGAN, F RIMONDI, L RISTORI, M ROACHBELLINO, WJ ROBERTSON, T RODRIGO, J ROMANO, L ROSENSON, WK SAKUMOTO, D SALTZBERG, A SANSONI, V SCARPINE, A SCHINDLER, P SCHLABACH, EE SCHMIDT, MP SCHMIDT, O SCHNEIDER, GF SCIACCA, A SCRIBANO, S SEGLER, S SEIDEL, Y SEIYA, G SGANOS, M SHAPIRO, NM SHAW, Q SHEN, PF SHEPARD, M SHIMOJIMA, M SHOCHET, J SIEGRIST, A SILL, P SINERVO, P SINGH, J SKARHA, K SLIWA, DA SMITH, FD SNIDER, L SONG, T SONG, J SPALDING, P SPHICAS, A SPIES, L STANCO, J STEELE, A STEFANINI, K STRAHL, J STRAIT, G SULLIVAN, K SUMOROK, RL SWARTZ, T TAKAHASHI, K TAKIKAWA, F TARTARELLI, Y TERAMOTO, S TETHER, D THERIOT, J THOMAS, R THUN, M TIMKO, P TIPTON, A TITOV, S TKACZYK, A TOLLESTRUP, J TONNISON, JF DETROCONIZ, J TSENG, M TURCOTTE, N TURINI, N UEMURA, F UKEGAWA, G UNAL, S VEJCIK, R VIDAL, M VONDRACEK, RG WAGNER, RL WAGNER, N WAINER, RC WALKER, J WANG, QF WANG, A WARBURTON, G WATTS, T WATTS, R WEBB, C WENDT, H WENZEL, WC WESTER, T WESTHUSING, AB WICKLUND, E WICKLUND, R WILKINSON, HH WILLIAMS, P WILSON, BL WINER, J WOLINSKI, DY WU, X WU, J WYSS, A YAGIL, W YAO, K YASUOKA, Y YE, GP YEH, M YIN, J YOH, T YOSHIDA, D YOVANOVITCH, I YU, JC YUN, A ZANETTI, F ZETTI, S ZHANG, W ZHANG, S ZUCCHELLI
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MEASUREMENT OF THE RATIO SIGMA-B(W-]E-NU)/SIGMA-B(Z(0)-]E+E-) IN P(OVER-BAR)-P COLLISIONS AT ROOT-S=1.8-TEV

PHYSICAL REVIEW LETTERS 73:2 (1994) 220-224

Authors:

F ABE, M ALBROW, D AMIDEI, C ANWAYWIESE, G APOLLINARI, H ARETI, P AUCHINCLOSS, F AZFAR, P AZZI, N BACCHETTA, W BADGETT, MW BAILEY, J BAO, P DEBARBARO, A BARBAROGALTIERI, VE BARNES, BA BARNETT, P BARTALINI, G BAUER, T BAUMANN, F BEDESCHI, S BEHRENDS, S BELFORTE, A BHATTI, K BIERY, M BINKLEY, F BIRD, D BISELLO, RE BLAIR, C BLOCKER, A BODEK, V BOLOGNESI, D BORTOLETTO, C BOSWELL, T BOULOS, G BRANDENBURG, E BUCKLEYGEER, HS BUDD, K BURKETT, G BUSETTO, A BYONWAGNER, KL BYRUM, C CAMPAGNARI, M CAMPBELL, A CANER, W CARITHERS, D CARLSMITH, A CASTRO, Y CEN, F CERVELLI, J CHAPMAN, G CHIARELLI, T CHIKAMATSU, S CIHANGIR, AG CLARK, M COBAL, M CONTRERAS, J CONWAY, J COOPER, M CORDELLI, DP COUPAL, D CRANE, JD CUNNINGHAM, T DANIELS, F DEJONGH, S DELCHAMPS, S DELLAGNELLO, M DELLORSO, L DEMORTIER, B DENBY, M DENINNO, PF DERWENT, T DEVLIN, M DICKSON, S DONATI, RB DRUCKER, A DUNN, K EINSWEILER, JE ELIAS, R ELY, E ENGELS, S ENO, D ERREDE, S ERREDE, A ETCHEGOYEN, Q FAN, B FARHAT, I FIORI, B FLAUGHER, GW FOSTER, M FRANKLIN, M FRAUTSCHI, J FREEMAN, J FRIEDMAN, H FRISCH, A FRY, TA FUESS, Y FUKUI, S FUNAKI, G GAGLIARDI, M GALLINARO, AF GARFINKEL, S GEER, DW GERDES, P GIANNETTI, N GIOKARIS, P GIROMINI, L GLADNEY, D GLENZINSKI, M GOLD, J GONZALEZ, A GORDON, AT GOSHAW, K GOULIANOS, H GRASSMANN, A GREWAL, G GRIECO, L GROER, C GROSSOPILCHER, C HABER, SR HAHN, R HAMILTON, R HANDLER, RM HANS, K HARA, B HARRAL, RM HARRIS, SA HAUGER, J HAUSER, C HAWK, J HEINRICH, D HENNESSY, R HOLLEBEEK, L HOLLOWAY, A HOLSCHER, S HONG, G HOUK, P HU, BT HUFFMAN, R HUGHES, P HURST, J HUSTON, J HUTH, J HYLEN, M INCAGLI, J INCANDELA, H ISO, H JENSEN, CP JESSOP, U JOSHI, RW KADEL, E KAJFASZ, T KAMON, T KANEKO, DA KARDELIS, H KASHA, Y KATO, L KEEBLE, RD KENNEDY, R KEPHART, P KESTEN, D KESTENBAUM, RM KEUP, H KEUTELIAN, F KEYVAN, DH KIM, HS KIM, SB KIM, SH KIM, YK KIM, L KIRSCH, P KOEHN, K KONDO, J KONIGSBERG, S KOPP, K KORDAS, W KOSKA, E KOVACS, W KOWALD, M KRASBERG, J KROLL, M KRUSE, SE KUHLMANN, E KUNS, AT LAASANEN, S LAMMEL, JI LAMOUREUX, T LECOMPTE, S LEONE, JD LEWIS, P LIMON, M LINDGREN, TM LISS, N LOCKYER, O LONG, M LORETI, EH LOW, J LU, D LUCCHESI, CB LUCHINI, P LUKENS, P MAAS, K MAESHIMA, A MAGHAKIAN, M MANGANO, J MANSOUR, M MARIOTTI, JP MARRINER, A MARTIN, JAJ MATTHEWS, R MATTINGLY, P MCINTYRE, P MELESE, A MENZIONE, E MESCHI, G MICHAIL, S MIKAMO, M MILLER, T MIMASHI, S MISCETTI, M MISHINA, H MITSUSHIO, S MIYASHITA, Y MORITA, S MOULDING, J MUELLER, A MUKHERJEE, T MULLER, P MUSGRAVE, LF NAKAE, I NAKANO, C NELSON, D NEUBERGER, C NEWMANHOLMES, L NODULMAN, S OGAWA, S OH, KE OHL, R OISHI, T OKUSAWA, C PAGLIARONE, R PAOLETTI, V PAPADIMITRIOU, S PARK, J PATRICK, G PAULETTA, L PESCARA, MD PETERS, TJ PHILLIPS, G PIACENTINO, M PILLAI, R PLUNKETT, L PONDROM, N PRODUIT, J PROUDFOOT, F PTOHOS, G PUNZI, K RAGAN, F RIMONDI, L RISTORI, M ROACHBELLINO, WJ ROBERTSON, T RODRIGO, J ROMANO, L ROSENSON, WK SAKUMOTO, D SALTZBERG, A SANSONI, V SCARPINE, A SCHINDLER, P SCHLABACH, EE SCHMIDT, MP SCHMIDT, O SCHNEIDER, GF SCIACCA, A SCRIBANO, S SEGLER, S SEIDEL, Y SEIYA, G SGANOS, M SHAPIRO, NM SHAW, Q SHEN, PF SHEPARD, M SHIMOJIMA, M SHOCHET, J SIEGRIST, A SILL, P SINERVO, P SINGH, J SKARHA, K SLIWA, DA SMITH, FD SNIDER, L SONG, T SONG, J SPALDING, P SPHICAS, A SPIES, L STANCO, J STEELE, A STEFANINI, K STRAHL, J STRAIT, D STUART, G SULLIVAN, K SUMOROK, RL SWARTZ, T TAKAHASHI, K TAKIKAWA, F TARTARELLI, Y TERAMOTO, S TETHER, D THERIOT, J THOMAS, R THUN, M TIMKO, P TIPTON, A TITOV, S TKACZYK, A TOLLESTRUP, J TONNISON, JF DETROCONIZ, J TSENG, M TURCOTTE, N TURINI, N UEMURA, F UKEGAWA, G UNAL, S VANDENBRINK, S VEJCIK, R VIDAL, M VONDRACEK, RG WAGNER, RL WAGNER, N WAINER, RC WALKER, J WANG, QF WANG, A WARBURTON, G WATTS, T WATTS, R WEBB, C WENDT, H WENZEL, WC WESTER, T WESTHUSING, AB WICKLUND, E WICKLUND, R WILKINSON, HH WILLIAMS, P WILSON, BL WINER, J WOLINSKI, DY WU, X WU, J WYSS, A YAGIL, W YAO, K YASUOKA, Y YE, GP YEH, M YIN, J YOH, T YOSHIDA, D YOVANOVITCH, I YU, JC YUN, A ZANETTI, F ZETTI, S ZHANG, W ZHANG, S ZUCCHELLI
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