Observation of diffractively produced W and Z bosons in p̄p collisions at √s = 1800 GeV

6533b872fe1ef96bd12d2fc8

RESEARCH PRODUCT

Observation of diffractively produced W and Z bosons in p̄p collisions at √s = 1800 GeV

R. Van Kooten Wendy Taylor A. Patwa S. Fu P. Demine A. Zieminski Q. Xu J. Huang R. A. Sidwell Alexander Khanov U. Bassler A. N. Galyaev Stephen Wimpenny G. Steinbrück Rajendran Raja H. Zheng Brad Abbott Pierre Petroff S. Fuess Roger Moore Zeno Dixon Greenwood K. W. Merritt Vladimir Gavrilov Gordon Watts D. Coppage V. Sirotenko D. K. Cho Y. Arnoud R. Illingworth Regina Demina T. C. Bacon E. W. Anderson M. Buehler J. F. Bartlett A. Besson N. A. Naumann F. Borcherding L. Lueking Bobby Samir Acharya H. A. Neal J. T. Linnemann V. M. Abazov V. Sorín O. V. Eroshin Y. Song Phillip Gutierrez T. Marshall W. E. Cooper K. Yip S. Duensing V. Oguri Ulrich Heintz D. Fein D. Chakraborty S. Chopra Don Lincoln Q. Z. Li P. W. Balm V. Manankov M. Abolins S. Reucroft D. P. Stoker Gustaaf Brooijmans H. Jöstlein Darien Wood G. Sajot P. Yamin Frank Filthaut A. Stone Daniel John Karmgard Elemer Nagy N. R. Stanton S. N. Ahmed M. Fortner L. Stutte N. W. Reay R. L. Mccarthy H. L. Melanson N. Parua V.v. Abramov M. Jaffré Arnaud Duperrin Alberto Santoro M. Diesburg Nicholas John Hadley C. Hebert Sebastian Grinstein N. K. Mondal J. Warchol H. T. Diehl T. A. Bolton C. Han A.s. Dyshkant Arnaud Lucotte Jong-sung Yu Alexander Kupco G. D. Alexeev Flera Rizatdinova D. Whiteson A. V. Kostritskiy D. Mihalcea W. Kahl A. Boehnlein M. Bhattacharjee S. Blessing P. Rubinov K. Gounder Sissel Hansen David H. Adams Alice Bean P. M. Tuts V. E. Kuznetsov Sarah Catherine Eno T. Rockwell Iain Alexander Bertram H. E. Fisk Scott Snyder F. Fleuret M. Merkin Randy Ruchti M. A. Strang Jing Li Ariel Schwartzman Melissa Ridel F. Canelli R. Kehoe D. A. Stoyanova A. S. Turcot Michael Rijssenbeek S. N. Gurzhiev T. G. Trippe Z. Zhou J. Solomon L. Duflot M. Strovink Emanuela Barberis Robert Hirosky Volker Buescher Shuichi Kunori Raymond Brock Boaz Klima Elizabeth Gallas T. Mcmahon R. Beuselinck F. Nang Vasken Hagopian Christophe Royon A. M. Kalinin G. Eppley Heriberto Castilla-valdez V. Vaniev Richard B. Lipton H. Weerts N.v. Mokhov Z. M. Wang M. I. Martin J. Ellison A. K.a. Maciel Sa. Jain A. Abdesselam V. Simak A. Leflat H. Da Motta S. Willis M. Gao Sharon Hagopian Lev Dudko F. Villeneuve-seguier A. P. Heinson Pushpalatha C Bhat P. Padley G. Gutierrez Gilvan Alves J. G.r. Lima D. Cutts C. Luo C. Luo D. Casey J. Kotcher Alexey Volkov J. M. Hauptman Cecilia Elena Gerber H. D. Wahl D. Bauer V. S. Narasimham L. Groer Wagner Carvalho Mitchell Wayne Sujogya Banerjee Greg Landsberg Harald Fox Viatcheslav Stolin H. Schellman J. M. Kohli K. Papageorgiou V. V. Babintsev G. Ginther V. N. Evdokimov R. E. Hall M. Zanabria M. H.g. Souza A. S. Ito Tulika Bose N. Graf Michael Begel Stefan Grünendahl Jianming Qian J. T. Eltzroth M. A.c. Cummings A. A. Mayorov L. Coney B. Hoeneisen Y. D. Mutaf S. Tentindo-repond Vipin Bhatnagar Andrew White Mossadek Talby B. Gómez P. I. Goncharov H. E. Montgomery Lee Sawyer C. Lundstedt Carlos Avila J. Snow H. Haggerty K. Soustruznik Christos Leonidopoulos Yu-tin Huang S. Krzywdzinski R. Partridge X. Zhang Shashikant Dugad K. Genser G. Briskin Jeffrey F. Krane R. Jesik Sabine Crépé-renaudin Philip Baringer A. Baden G. C. Blazey J. Womersley A. Goussiou S. Baffioni K. A. Johns C. Miao B. Olivier R. Yamada V. L. Malyshev Nikos Varelas B. M. Sabirov Andrei Nomerotski Bing Zhou E. G. Zverev H. S. Mao B. G. Pope D. Karmanov R. K. Shivpuri John Hobbs S. J. De Jong S.a. Kahn M. B. Przybycien M. B. Przybycien A. Zylberstejn F. Lehner F. Lehner D. R. Claes Ia Iashvili J. Barreto B. Kothari T. Yasuda M. Demarteau Mary Beth Adams S. Doulas D. Buchholz Howard Gordon Elizaveta Shabalina Kaushik De R. Piegaia H. Greenlee James C. Green Neeti Parashar Florian Beaudette Marvin Johnson P. A. Rapidis M. Zielinski A. Jonckheere A. V. Kozelov S. M. Tripathi E. Kajfasz Alexander Belyaev Suyong Choi A. P. Vorobiev Stephan Linn S. P. Denisov Gregory R Snow D. Hedin Patrick Slattery A. Bross O. Peters N. Oshima Meenakshi Narain K. M. Mauritz P.f. Ermolov Daria Zieminska M. R. Krishnaswamy R. D. Schamberger V. S. Burtovoi A. R. Clark N. Sotnikova M. A. Kubantsev R. J. Genik Sergey Chekulaev Gregorio Bernardi D. Denisov J. M. Heinmiller Srinivasan Rajagopalan Hal Evans Thomas Ferbel R. J. Madaras G. A. Davis Serban Protopopescu V. A. Bezzubov J. P. Negret M. Sosebee A. Alton R. P. Smith Freya Blekman Andrew Brandt R. Engelmann Michael Shupe E. A. Kozlovsky H.e. Miettinen Michael Hildreth J. Estrada K. M. Chan Y. A. Yatsunenko Harrison Prosper S. Desai T. Nunnemann B. Baldin W. M. Lee A. Kharchilava Sergey Kuleshov Victor Daniel Elvira V. Zutshi D. Shpakov N. I. Bojko D. O'neil J. N. Butler P. D. Grannis Michael A. Strauss Y. Kulik Suman Bala Beri A. Juste B. Connolly D. A. Wijngaarden K. Bos D. Edmunds Andre Sznajder Yuri Gershtein P. Krivkova L. Babukhadia

subject

Physics Diffraction Nuclear and High Energy Physics Particle physics 010308 nuclear & particles physics Scattering Detector Sigma HERA 01 natural sciences Nuclear physics W and Z bosons biological sciences 0103 physical sciences bacteria Rapidity 010306 general physics Boson

description

Using the DO detector, we have observed events produced in (p) over barp collisions that contain W or Z bosons in conjunction with very little energy deposition ("rapidity gaps") in large forward regions of the detector. The fraction of W boson events with a rapidity gap (a signature for diffraction) is 0.89 +/- (0.19)(0.17)% and the probability that the non-diffractive background fluctuated to yield the observed diffractive signal is 3 x 10(-14), corresponding to a significance of 7.5 sigma. The Z boson sample has a gap fraction of 1.44 +/- (0.61)(0.52)%, with a significance of 4.4 sigma. The diffractive events have very similar properties to the more common non-diffractive component. (C) 2003 Elsevier B.V. All rights reserved.

year	journal	country	edition	language
2003-11-01

10.1016/j.physletb.2003.09.001 https://doi.org/10.1016/j.physletb.2003.09.001