For authors
Submission status

Archive (English)
   Volumes 113-119
   Volumes 93-112
      Volume 112
      Volume 111
      Volume 110
      Volume 109
      Volume 108
      Volume 107
      Volume 106
      Volume 105
      Volume 104
      Volume 103
      Volume 102
      Volume 101
      Volume 100
      Volume 99
      Volume 98
      Volume 97
      Volume 96
      Volume 95
      Volume 94
      Volume 93
VOLUME 102 (2015) | ISSUE 5 | PAGE 297
On a search for the \boldsymbol{\eta \rightarrow e^+ e^-} decay at the VEPP-2000 e+e- collider
A sensitivity of the VEPP-2000 e+e- collider in a search for the rare decay \eta \rightarrow e^+ e^- has been studied. The inverse reaction e^+ e^- \rightarrow \eta is proposed for this search. We have analyzed a data sample with an integrated luminosity of 108 nb-1 collected with the SND detector in the center-of-mass energy range 520-580 MeV and found no background events for the reaction e^+ e^- \rightarrow \eta in the decay mode η→π0π0π0. In the absence of background, a sensitivity to {\cal B}(\eta \rightarrow e^+ e^-) of 10-6 can be reached during two weeks of VEPP-2000 operation. Such a sensitivity is better than the current upper limit on {\cal B}(\eta \rightarrow e^+ e^-) by a factor of 2.3.