Azimuthal di-hadron correlations in d+ Au and Au + Au collisions at sqrt(s)NN=200 GeV measured at the STAR detector

M.M. Aggarwal; E Braidot; A. Mischke; T. Peitzmann; M. van Leeuwen

doi:10.1103/PhysRevC.82.024912

Azimuthal di-hadron correlations in d+ Au and Au + Au collisions at sqrt(s)NN=200 GeV measured at the STAR detector

M.M. Aggarwal, E Braidot, A. Mischke, T. Peitzmann, M. van Leeuwen

extern

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

Yields, correlation shapes, and mean transverse momenta pT of charged particles associated with intermediate- to high-pT trigger particles (2.5<pT<10 GeV/c) in d+ Au and Au + Au collisions at √sNN=200 GeV are presented. For associated particles at higher pT≳2.5 GeV/c, narrow correlation peaks are seen in d+ Au and Au + Au, indicating that the main production mechanism is jet fragmentation. At lower associated particle pT<2 GeV/c, a large enhancement of the near- (Δϕ~0) and away-side (Δϕ~π) associated yields is found, together with a strong broadening of the away-side azimuthal distributions in Au + Au collisions compared to d+ Au measurements, suggesting that other particle production mechanisms play a role. This is further supported by the observed significant softening of the away-side associated particle yield distribution at Δϕ~π in central Au + Au collisions.

Original language	English
Article number	024912
Number of pages	14
Journal	Physical Review. C, Nuclear physics
Volume	82
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevC.82.024912
Publication status	Published - 2010

Bibliographical note

STAR Collaboration
12th Euregional Workshop on Novel Concepts for Future Thin-Film Silicon Solar Cells

Access to Document

10.1103/PhysRevC.82.024912

Azimuthal StarCollab 2010
Open Access (free)
Final published version, 1.19 MB

Cite this

@article{a84edc499c5b411c9e21a60f2d222f6f,

title = "Azimuthal di-hadron correlations in d+ Au and Au + Au collisions at sqrt(s)NN=200 GeV measured at the STAR detector",

abstract = "Yields, correlation shapes, and mean transverse momenta pT of charged particles associated with intermediate- to high-pT trigger particles (2.5<pT<10 GeV/c) in d+ Au and Au + Au collisions at √sNN=200 GeV are presented. For associated particles at higher pT≳2.5 GeV/c, narrow correlation peaks are seen in d+ Au and Au + Au, indicating that the main production mechanism is jet fragmentation. At lower associated particle pT<2 GeV/c, a large enhancement of the near- (Δϕ~0) and away-side (Δϕ~π) associated yields is found, together with a strong broadening of the away-side azimuthal distributions in Au + Au collisions compared to d+ Au measurements, suggesting that other particle production mechanisms play a role. This is further supported by the observed significant softening of the away-side associated particle yield distribution at Δϕ~π in central Au + Au collisions.",

author = "M.M. Aggarwal and E Braidot and A. Mischke and T. Peitzmann and {van Leeuwen}, M.",

note = "STAR Collaboration 12th Euregional Workshop on Novel Concepts for Future Thin-Film Silicon Solar Cells",

year = "2010",

doi = "10.1103/PhysRevC.82.024912",

language = "English",

volume = "82",

journal = "Physical Review. C, Nuclear physics",

issn = "0556-2813",

publisher = "American Physical Society",

number = "2",

}

TY - JOUR

T1 - Azimuthal di-hadron correlations in d+ Au and Au + Au collisions at sqrt(s)NN=200 GeV measured at the STAR detector

AU - Aggarwal, M.M.

AU - Braidot, E

AU - Mischke, A.

AU - Peitzmann, T.

AU - van Leeuwen, M.

N1 - STAR Collaboration 12th Euregional Workshop on Novel Concepts for Future Thin-Film Silicon Solar Cells

PY - 2010

Y1 - 2010

N2 - Yields, correlation shapes, and mean transverse momenta pT of charged particles associated with intermediate- to high-pT trigger particles (2.5<pT<10 GeV/c) in d+ Au and Au + Au collisions at √sNN=200 GeV are presented. For associated particles at higher pT≳2.5 GeV/c, narrow correlation peaks are seen in d+ Au and Au + Au, indicating that the main production mechanism is jet fragmentation. At lower associated particle pT<2 GeV/c, a large enhancement of the near- (Δϕ~0) and away-side (Δϕ~π) associated yields is found, together with a strong broadening of the away-side azimuthal distributions in Au + Au collisions compared to d+ Au measurements, suggesting that other particle production mechanisms play a role. This is further supported by the observed significant softening of the away-side associated particle yield distribution at Δϕ~π in central Au + Au collisions.

AB - Yields, correlation shapes, and mean transverse momenta pT of charged particles associated with intermediate- to high-pT trigger particles (2.5<pT<10 GeV/c) in d+ Au and Au + Au collisions at √sNN=200 GeV are presented. For associated particles at higher pT≳2.5 GeV/c, narrow correlation peaks are seen in d+ Au and Au + Au, indicating that the main production mechanism is jet fragmentation. At lower associated particle pT<2 GeV/c, a large enhancement of the near- (Δϕ~0) and away-side (Δϕ~π) associated yields is found, together with a strong broadening of the away-side azimuthal distributions in Au + Au collisions compared to d+ Au measurements, suggesting that other particle production mechanisms play a role. This is further supported by the observed significant softening of the away-side associated particle yield distribution at Δϕ~π in central Au + Au collisions.

U2 - 10.1103/PhysRevC.82.024912

DO - 10.1103/PhysRevC.82.024912

M3 - Article

SN - 0556-2813

VL - 82

JO - Physical Review. C, Nuclear physics

JF - Physical Review. C, Nuclear physics

IS - 2

M1 - 024912

ER -

Azimuthal di-hadron correlations in d+ Au and Au + Au collisions at sqrt(s)NN=200 GeV measured at the STAR detector

Abstract

Bibliographical note

Access to Document

Fingerprint

Cite this