Studies of charm and beauty long-range correlations in pp and pPb collisions - INSPIRE

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Studies of charm and beauty long-range correlations in pp and pPb collisions

CMS

Collaboration

2019

18 pages

Report number:

CMS-PAS-HIN-19-009

Experiments:

CERN-LHC-CMS

View in:

CERN Document Server

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Abstract:

Studies of collective long-range (large

\eta

gap) correlations involving open charm and beauty hadrons in pp and pPb collisions are presented, using data samples collected by the CMS experiment with center-of-mass energies of 13 and 8.16 TeV, respectively. The elliptic flow harmonics (

v_2

) of prompt and nonprompt

D^{0}

mesons (from beauty hadron decays) are extracted from long-range two-particle azimuthal correlations, with respect to inclusive charged particles. In pp collisions, positive

v_2

signals for prompt charm hadrons are reported for the first time over a transverse momentum (

p_{\mathrm{T}}

) range of 2-4 GeV. The signals are comparable to those for light-flavor hadron species. Compared at similar event multiplicities, the prompt

D^{0}

meson

v_2

values in pp and pPb are similar in magnitude. The

v_2

signal for open beauty hadrons is extracted for the first time via nonprompt

D^{0}

meson in pPb collisions, with a magnitude smaller than that for prompt

D^{0}

meson at

p_{\mathrm{T}}

between 2-5 GeV. The new measurements provide strong indications of a postive charm hadron

v_2

in the smallest pp systems and a flavor hierarchy of

v_2

between charm and beauty hadrons in the pPb systems, providing key insights to further understand the origin of heavy flavor quark collectivity in small-system collisions.

Note:

Preliminary results

Monte-Carlo
hadron: decay
correlation: long-range
p p: scattering
D0: elliptic flow
angular correlation: two-particle
flavor: hierarchy
transverse momentum
charged particle
multiplicity

References(67)

Figures(8)

[1]

System size dependence of cluster properties from two-particle angular correlations in Cu+Cu and Au+Au collisions at s(NN)**(1/2) = 200-GeV

PHOBOS

Collaboration

•

B. Alver
(
- MIT, LNS
)

et al.

- Phys.Rev.C 81 (2010) 024904
•
e-Print:
- 0812.1172
•
DOI:
- 10.1103/PhysRevC.81.024904

[2]

Distributions of charged hadrons associated with high transverse momentum particles in pp and Au + Au collisions at s(NN)**(1/2) = 200-GeV

STAR

Collaboration

•

J. Adams
(
- Birmingham U.
)

et al.

- Phys.Rev.Lett. 95 (2005) 152301
•
e-Print:
- nucl-ex/0501016
•
DOI:
- 10.1103/PhysRevLett.95.152301

[3]

Long range rapidity correlations and jet production in high energy nuclear collisions

STAR

Collaboration

•

B.I. Abelev
(
- Illinois U., Chicago
)

et al.

- Phys.Rev.C 80 (2009) 064912
•
e-Print:
- 0909.0191
•
DOI:
- 10.1103/PhysRevC.80.064912

[4]

High transverse momentum triggered correlations over a large pseudorapidity acceptance in Au+Au collisions at s(NN)**1/2 = 200 GeV

PHOBOS

Collaboration

•

B. Alver
(
- MIT
)

et al.

- Phys.Rev.Lett. 104 (2010) 062301
•
e-Print:
- 0903.2811
•
DOI:
- 10.1103/PhysRevLett.104.062301

[5]

Long-range and short-range dihadron angular correlations in central PbPb collisions at a nucleon-nucleon center of mass energy of 2.76 TeV

CMS

Collaboration

•

Serguei Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- JHEP 07 (2011) 076
•
e-Print:
- 1105.2438
•
DOI:
- 10.1007/JHEP07(2011)076

[6]

Centrality Dependence of Dihadron Correlations and Azimuthal anisotropy Harmonics in PbPb Collisions at $\sqrt{s_{NN}}=2.76$ TeV

CMS

Collaboration

•

Serguei Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- Eur.Phys.J.C 72 (2012) 2012
•
e-Print:
- 1201.3158
•
DOI:
- 10.1140/epjc/s10052-012-2012-3

[7]

Elliptic flow of charged particles in Pb-Pb collisions at 2.76 TeV

ALICE

Collaboration

•

K Aamodt
(
- Bergen U.
)

et al.

- Phys.Rev.Lett. 105 (2010) 252302
•
e-Print:
- 1011.3914
•
DOI:
- 10.1103/PhysRevLett.105.252302

[8]

Measurement of the azimuthal anisotropy for charged particle production in $\sqrt{s_{NN}}=2.76$ TeV lead-lead collisions with the ATLAS detector

ATLAS

Collaboration

•

Georges Aad
(
- Freiburg U.
)

et al.

- Phys.Rev.C 86 (2012) 014907
•
e-Print:
- 1203.3087
•
DOI:
- 10.1103/PhysRevC.86.014907

[9]

Measurement of the Elliptic Anisotropy of Charged Particles Produced in PbPb Collisions at $\sqrt{s}_{NN}$ =2.76 TeV

CMS

Collaboration

•

Serguei Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- Phys.Rev.C 87 (2013) 1, 014902
•
e-Print:
- 1204.1409
•
DOI:
- 10.1103/PhysRevC.87.014902

[10]

Studies of Azimuthal Dihadron Correlations in Ultra-Central PbPb Collisions at $\sqrt{s_{NN}} =$ 2.76 TeV

CMS

Collaboration

•

Serguei Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- JHEP 02 (2014) 088
•
e-Print:
- 1312.1845
•
DOI:
- 10.1007/JHEP02(2014)088

[11]

Anisotropy as a signature of transverse collective flow

Jean-Yves Ollitrault
(
- Saclay
)

- Phys.Rev.D 46 (1992) 229-245
•
DOI:
- 10.1103/PhysRevD.46.229

[12]

Collective flow and viscosity in relativistic heavy-ion collisions

Ulrich Heinz
(
- Ohio State U.
)
,
Raimond Snellings
(
- Utrecht U.
)

- Ann.Rev.Nucl.Part.Sci. 63 (2013) 123-151
•
e-Print:
- 1301.2826
•
DOI:
- 10.1146/annurev-nucl-102212-170540

[13]

Hydrodynamic Modeling of Heavy-Ion Collisions

- Int.J.Mod.Phys.A 28 (2013) 1340011
•
e-Print:
- 1301.5893
•
DOI:
- 10.1142/S0217751X13400113

[14]

Observation of Long-Range Near-Side Angular Correlations in Proton-Proton Collisions at the LHC

CMS

Collaboration

•

Vardan Khachatryan
(
- Yerevan Phys. Inst.
)

et al.

- JHEP 09 (2010) 091
•
e-Print:
- 1009.4122
•
DOI:
- 10.1007/JHEP09(2010)091

[15]

Observation of Long-Range Elliptic Azimuthal Anisotropies in $\sqrt{s}=$ 13 and 2.76 TeV $pp$ Collisions with the ATLAS Detector

ATLAS

Collaboration

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- Phys.Rev.Lett. 116 (2016) 17, 172301
•
e-Print:
- 1509.04776
•
DOI:
- 10.1103/PhysRevLett.116.172301

[16]

Measurement of long-range near-side two-particle angular correlations in pp collisions at $\sqrt s =$ 13 TeV

CMS

Collaboration

•

Vardan Khachatryan
(
- Yerevan Phys. Inst.
)

et al.

- Phys.Rev.Lett. 116 (2016) 17, 172302
•
e-Print:
- 1510.03068
•
DOI:
- 10.1103/PhysRevLett.116.172302

[17]

Evidence for collectivity in pp collisions at the LHC

CMS

Collaboration

•

Vardan Khachatryan
(
- Yerevan Phys. Inst.
)

et al.

- Phys.Lett.B 765 (2017) 193-220
•
e-Print:
- 1606.06198
•
DOI:
- 10.1016/j.physletb.2016.12.009

[18]

Measurement of azimuthal anisotropy of muons from charm and bottom hadrons in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector

ATLAS

Collaboration

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- Phys.Rev.Lett. 124 (2020) 8, 082301
•
e-Print:
- 1909.01650
•
DOI:
- 10.1103/PhysRevLett.124.082301

[19]

Observation of Long-Range Near-Side Angular Correlations in Proton-Lead Collisions at the LHC

CMS

Collaboration

•

Serguei Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- Phys.Lett.B 718 (2013) 795-814
•
e-Print:
- 1210.5482
•
DOI:
- 10.1016/j.physletb.2012.11.025

[20]

Long-range angular correlations on the near and away side in $p$ -Pb collisions at $\sqrt{s_{NN}}=5.02$ TeV

ALICE

Collaboration

•

Betty Abelev
(
- LLNL, Livermore
)

et al.

- Phys.Lett.B 719 (2013) 29-41
•
e-Print:
- 1212.2001
•
DOI:
- 10.1016/j.physletb.2013.01.012

[21]

Observation of Associated Near-Side and Away-Side Long-Range Correlations in $\sqrt{s_{NN}}$ =5.02 TeV Proton-Lead Collisions with the ATLAS Detector

ATLAS

Collaboration

•

Georges Aad
(
- Freiburg U.
)

et al.

- Phys.Rev.Lett. 110 (2013) 18, 182302
•
e-Print:
- 1212.5198
•
DOI:
- 10.1103/PhysRevLett.110.182302

[22]

Measurements of long-range near-side angular correlations in $\sqrt{s_{\text{NN}}}=5$ TeV proton-lead collisions in the forward region

LHCb

Collaboration

•

Roel Aaij
(
- CERN
)

et al.

- Phys.Lett.B 762 (2016) 473-483
•
e-Print:
- 1512.00439
•
DOI:
- 10.1016/j.physletb.2016.09.064

[23]

Long-range angular correlations of $\rm \pi$ , K and p in p-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV

ALICE

Collaboration

•

Betty Bezverkhny Abelev
(
- LLNL, Livermore
)

et al.

- Phys.Lett.B 726 (2013) 164-177
•
e-Print:
- 1307.3237
•
DOI:
- 10.1016/j.physletb.2013.08.024

[24]

Long-range two-particle correlations of strange hadrons with charged particles in pPb and PbPb collisions at LHC energies

CMS

Collaboration

•

Vardan Khachatryan
(
- Yerevan Phys. Inst.
)

et al.

- Phys.Lett.B 742 (2015) 200-224
•
e-Print:
- 1409.3392
•
DOI:
- 10.1016/j.physletb.2015.01.034

[25]

Evidence for Collective Multiparticle Correlations in p-Pb Collisions

CMS

Collaboration

•

Vardan Khachatryan
(
- Yerevan Phys. Inst.
)

et al.

- Phys.Rev.Lett. 115 (2015) 1, 012301
•
e-Print:
- 1502.05382
•
DOI:
- 10.1103/PhysRevLett.115.012301

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