par Adloff, Catherine;Clerbaux, Barbara 
;Favart, Laurent ;Marage, Pierre ; [et al.]
Référence Zeitschrift für Physik. C, Particles and fields, 74, page (191-205)
Publication Publié, 1997
;Favart, Laurent ;Marage, Pierre ; [et al.]Référence Zeitschrift für Physik. C, Particles and fields, 74, page (191-205)
Publication Publié, 1997
Article révisé par les pairs
| Résumé : | Measurements of ep scattering with squared 4-momentum transfer Q2 up to 35000 GeV2 are compared with the expectation of the standard deep-inelastic model of lepton-nucleon scattering (DIS). For Q2 > 15000 GeV2, Nobs = 12 neutral current candidate events are observed where the expectation is NDIS = 4.71 ± 0.76 events. In the same Q2 range, Nobs = 4 charged current candidates are observed where the expectation is NDIS = 1.77 ± 0.87 events. The probability ℘(N ≥ Nobs) that the DIS model signal N fluctuates to N ≥ Nobs in a random set of experiments is 6 × 10-3 for neutral current and 0.14 for charged current. The difference in the observed and expected number of Neutral Current events is mostly due to events at large masses M = √xs in which the positron is backscattered at large y = Q2/M2. © Springer-Verlag 1997. |
