Measurement of spin correlation between and antitop quarks produced in p¯p collisions at √s=1.96 TeV Public Deposited

http://ir.library.oregonstate.edu/concern/articles/7w62fb164

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  • Measurement of spin correlation between top and antitop quarks produced in p(p)over-bar collisions at root s=1.96 TeV
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  • We present a measurement of the correlation between the spins of t and t quarks produced in proton– antiproton collisions at the Tevatron Collider at a center-of-mass energy of 1.96 TeV. We apply a matrix element technique to dilepton and single-lepton+jets final states in data accumulated with the D0 detector that correspond to an integrated luminosity of 9.7 fb⁻¹. The measured value of the correlation coefficient in the off-diagonal basis, 0ₒff = 0.89 ± 0.22 (stat + syst), is in agreement with the standard model prediction, and represents evidence for a top–antitop quark spin correlation difference from zero at a level of 4.2 standard deviations.
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  • Abazov, V. M., Abbott, B., Acharya, B. S., Adams, M., Adams, T., ... & Zivkovic, L. (2016). Measurement of spin correlation between top and antitop quarks produced in p¯p collisions at √s=1.96 TeV. Physics Letters B, 757, 199-206. doi:10.1016/j.physletb.2016.03.053
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  • description.provenance : Made available in DSpace on 2016-06-27T20:38:39Z (GMT). No. of bitstreams: 2krauserp1487058871.zip: 331455 bytes, checksum: 19d66fac5722774dc41d216191db50a2 (MD5)AbazovMeasurementofSpinCorrelation.pdf: 468009 bytes, checksum: 467771c6a12849ca15e3ad2702517410 (MD5) Previous issue date: 2016-06-10
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  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2016-06-27T20:38:39Z (GMT) No. of bitstreams: 2krauserp1487058871.zip: 331455 bytes, checksum: 19d66fac5722774dc41d216191db50a2 (MD5)AbazovMeasurementofSpinCorrelation.pdf: 468009 bytes, checksum: 467771c6a12849ca15e3ad2702517410 (MD5)

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