1 Ocak 2016 Dergi makalesi Açık Erişim

Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragicevic, M.; Eroe, J.; Flechl, M.; Friedl, M.; Fruehwirth, R.; Ghete, V. M.; Hartl, C.; Hoermann, N.; Hrubec, J.; Jeitler, M.; Knuenz, V.; Koenig, A.; Koenig, A.

Citation Style Language JSON

{
  "DOI": "10.1007/JHEP04(2016)073", 
  "abstract": "A first measurement of the top quark spin asymmetry, sensitive to the top quark polarisation, in t-channel single top quark production is presented. It is based on a sample of pp collisions at a centre-of-mass energy of 8TeV corresponding to an integrated luminosity of 19.7 fb(-1). A high-purity sample of t-channel single top quark events with an isolated muon is selected. Signal and background components are estimated using a fit to data. A differential cross section measurement, corrected for detector effects, of an angular observable sensitive to the top quark polarisation is performed. The differential distribution is used to extract a top quark spin asymmetry of 0.26 +/- 0.03(stat) +/- 0.10(syst), which is compatible with a p-value of 4.6% with the standard model prediction of 0.44.", 
  "author": [
    {
      "family": "Khachatryan", 
      "given": " V."
    }, 
    {
      "family": "Sirunyan", 
      "given": " A. M."
    }, 
    {
      "family": "Tumasyan", 
      "given": " A."
    }, 
    {
      "family": "Adam", 
      "given": " W."
    }, 
    {
      "family": "Asilar", 
      "given": " E."
    }, 
    {
      "family": "Bergauer", 
      "given": " T."
    }, 
    {
      "family": "Brandstetter", 
      "given": " J."
    }, 
    {
      "family": "Brondolin", 
      "given": " E."
    }, 
    {
      "family": "Dragicevic", 
      "given": " M."
    }, 
    {
      "family": "Eroe", 
      "given": " J."
    }, 
    {
      "family": "Flechl", 
      "given": " M."
    }, 
    {
      "family": "Friedl", 
      "given": " M."
    }, 
    {
      "family": "Fruehwirth", 
      "given": " R."
    }, 
    {
      "family": "Ghete", 
      "given": " V. M."
    }, 
    {
      "family": "Hartl", 
      "given": " C."
    }, 
    {
      "family": "Hoermann", 
      "given": " N."
    }, 
    {
      "family": "Hrubec", 
      "given": " J."
    }, 
    {
      "family": "Jeitler", 
      "given": " M."
    }, 
    {
      "family": "Knuenz", 
      "given": " V."
    }, 
    {
      "family": "Koenig", 
      "given": " A."
    }, 
    {
      "family": "Koenig", 
      "given": " A."
    }
  ], 
  "container_title": "JOURNAL OF HIGH ENERGY PHYSICS", 
  "id": "55335", 
  "issue": "4", 
  "issued": {
    "date-parts": [
      [
        2016, 
        1, 
        1
      ]
    ]
  }, 
  "title": "Measurement of top quark polarisation in t-channel single top quark production", 
  "type": "article-journal"
}