Yayınlanmış 1 Ocak 2017 | Sürüm v1
Dergi makalesi Açık

Search for heavy resonances decaying to tau lepton pairs in proton-proton collisions at root s=13 TeV

Oluşturanlar

  • 1. INFN, Sez Pisa, Pisa, Italy
  • 2. Univ Siena, Siena, Italy
  • 3. Scuola Normale Super Pisa, Pisa, Italy
  • 4. Univ Pisa, Pisa, Italy
  • 5. Purdue Univ, W Lafayette, IN USA

Açıklama

A search for heavy resonances that decay to tau lepton pairs is performed using proton-proton collisions at root s = 13 TeV. The data were collected with the CMS detector at the CERN LHC and correspond to an integrated luminosity of 2.2 fb(-1). The observations are in agreement with standard model predictions. An upper limit at 95% confidence level on the product of the production cross section and branching fraction into tau lepton pairs is calculated as a function of the resonance mass. For the sequential standard model, the presence of Z' bosons decaying into tau lepton pairs is excluded for Z/ masses below 2.1 TeV, extending previous limits for this final state. For the topcolor-assisted technicolor model, which predicts Z' bosons that preferentially couple to third-generation fermions, Z' masses below 1.7 TeV are excluded, representing the most stringent limit to date.

Dosyalar

bib-1b9b44b6-ef76-4b22-914a-fa3172557bcd.txt

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md5:2a9fe0fe4aacf21f3b7ee7f1d8153c43
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