Angular correlations between heavy-flavor decay electrons and charged particles at midrapidity pffiffiffiffiffiffiffi (jηj < 0.8) are measured in p-Pb collisions at sNN 1⁄4 5.02 TeV. The analysis is carried out for the 0%–20% (high) and 60%–100% (low) multiplicity ranges. The jet contribution in the correlation distribution from high-multiplicity events is removed by subtracting the distribution from low-multiplicity events. An azimuthal modulation remains after removing the jet contribution, similar to previous observations in two-particle angular correlation measurements for light-flavor hadrons. A Fourier decomposition of the modulation results in a positive second-order coefficient (v2) for heavy-flavor decay electrons in the transverse momentum interval 1.5 < pT < 4 GeV=c in high-multiplicity events, with a significance larger than 5σ. The results are compared with those of charged particles at midrapidity and those of inclusive muons at forward rapidity. The v2 measurement of open heavy-flavor particles at midrapidity in small collision systems could provide crucial information to help interpret the anisotropies observed in such systems.
Eser Adı (dc.title) | Azimuthal Anisotropy of Heavy-Flavor Decay Electrons in p-Pb Collisions at sNN = 5.02 TeV |
Yayın Türü (dc.type) | Makale |
Yazar/lar (dc.contributor.author) | KARASU UYSAL, Ayben |
Yazar/lar (dc.contributor.author) | ALICE Collaboration |
Atıf Dizini (dc.source.database) | Wos |
Atıf Dizini (dc.source.database) | Scopus |
Konu Başlıkları (dc.subject) | Angular Correlations |
Konu Başlıkları (dc.subject) | ALICE |
Konu Başlıkları (dc.subject) | LHC |
Yayın Tarihi (dc.date.issued) | 2019 |
Kayıt Giriş Tarihi (dc.date.accessioned) | 2019-07-08T09:27:39Z |
Açık Erişim tarihi (dc.date.available) | 2019-07-08T09:27:39Z |
Atıf için Künye (dc.identifier.citation) | 10.1103/PhysRevLett.122.072301 |
Özet (dc.description.abstract) | Angular correlations between heavy-flavor decay electrons and charged particles at midrapidity pffiffiffiffiffiffiffi (jηj < 0.8) are measured in p-Pb collisions at sNN 1⁄4 5.02 TeV. The analysis is carried out for the 0%–20% (high) and 60%–100% (low) multiplicity ranges. The jet contribution in the correlation distribution from high-multiplicity events is removed by subtracting the distribution from low-multiplicity events. An azimuthal modulation remains after removing the jet contribution, similar to previous observations in two-particle angular correlation measurements for light-flavor hadrons. A Fourier decomposition of the modulation results in a positive second-order coefficient (v2) for heavy-flavor decay electrons in the transverse momentum interval 1.5 < pT < 4 GeV=c in high-multiplicity events, with a significance larger than 5σ. The results are compared with those of charged particles at midrapidity and those of inclusive muons at forward rapidity. The v2 measurement of open heavy-flavor particles at midrapidity in small collision systems could provide crucial information to help interpret the anisotropies observed in such systems. |
Tek Biçim Adres (dc.identifier.uri) | https://hdl.handle.net/20.500.12498/677 |