Kinematic top analyses at CDF

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We present an update of the top quark analysis using kinematic techniques in p{bar p} collisions at {radical}s = 1.8 TeV with the Collider Detector at Fermilab (CDF). We reported before on a study which used 19.3 pb{sup {minus}1} of data from the 1992--1993 collider run, but now we use a larger data sample of 67 pb{sup {minus}1}. First, we analyze the total transverse energy of the hard collision in W+{ge}3 jet events, showing the likely presence of a t{bar t} component in the event sample. Next, we compare in more detail the kinematic structure of W+ {ge}3 jet events ... continued below

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19 p.

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Grassmann, H. March 1, 1995.

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We present an update of the top quark analysis using kinematic techniques in p{bar p} collisions at {radical}s = 1.8 TeV with the Collider Detector at Fermilab (CDF). We reported before on a study which used 19.3 pb{sup {minus}1} of data from the 1992--1993 collider run, but now we use a larger data sample of 67 pb{sup {minus}1}. First, we analyze the total transverse energy of the hard collision in W+{ge}3 jet events, showing the likely presence of a t{bar t} component in the event sample. Next, we compare in more detail the kinematic structure of W+ {ge}3 jet events with expectations for top pair production and with background processes, predominantly direct W+ jet production. We again find W+ {ge} 3 jet events which cannot be explained in terms of background, but show kinematic features as expected from top. These events also show evidence for beauty quarks, in agreement with expectations from top, but not compatible with expectations from backgrounds. The findings confirm the observation of top events made earlier in the data of the 1992--1993 collider run.

Physical Description

19 p.

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INIS; OSTI as DE95011499

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  • Rencontres de Physique de la Valle` d`Aoste: results and perspectives in particle physics, La Thuile (Italy), 5-11 Mar 1995

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  • Other: DE95011499
  • Report No.: FNAL/C--95-060-E
  • Report No.: CONF-9503147--1
  • Grant Number: AC02-76CH03000
  • Office of Scientific & Technical Information Report Number: 78702
  • Archival Resource Key: ark:/67531/metadc716089

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  • March 1, 1995

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  • Sept. 29, 2015, 5:31 a.m.

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  • Nov. 10, 2016, 4:27 p.m.

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Grassmann, H. Kinematic top analyses at CDF, article, March 1, 1995; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc716089/: accessed August 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.