| Makale Türü | Özgün Makale (Uluslararası alan indekslerindeki dergilerde yayınlanan tam makale) | ||
| Dergi Adı | High Energy Phys | ||
| Makale Dili | – | Basım Tarihi | 01-2011 |
| Cilt / Sayı / Sayfa | 1110 / 7 / 132–0 | DOI | – |
| Makale Linki | https://scholar.google.com/scholar?cluster=13942853955904767946&hl=en&oi=scholarr | ||
| UAK Araştırma Alanları |
Yüksek Enerji ve Parçacık Fiziği
|
||
| Özet |
| First measurements of dihadron correlations for charged particles are presented for central PbPb collisions at a nucleon-nucleon center-of-mass energy of 2.76 TeV over a broad range in relative pseudorapidity (∆ η) and the full range of relative azimuthal angle (∆ φ). The data were collected with the CMS detector, at the LHC. A broadening of the away-side (∆ φ≈ π) azimuthal correlation is observed at all∆ η, as compared to the measurements in pp collisions. Furthermore, long-range dihadron correlations in∆ η are observed for particles with similar φ values. This phenomenon, also known as the “ridge”, persists up to at least|∆ η|= 4. For particles with transverse momenta (pT) of 2-4 GeV/c, the ridge is found to be most prominent when these particles are correlated with particles of pT= 2-6 GeV/c, and to be much reduced when paired with particles of pT= 10-12 GeV/c. |
| Anahtar Kelimeler |