Measurement of $\omega$ meson production in pp collisions at $\sqrt{s}$ = 13 TeV - INSPIRE

DataBETA

Measurement of $\omega$ meson production in pp collisions at $\sqrt{s}$ = 13 TeV

ALICE

Collaboration

Nov 14, 2024

26 pages

e-Print:

2411.09432 [hep-ex]

Report number:

CERN-EP-2024-303

Experiments:

CERN-LHC-ALICE

View in:

reference search2 citations

Citations per year

Abstract: (arXiv)

The

p_{\rm T}

-differential cross section of

\omega

meson production in pp collisions at

\sqrt{s}

= 13 TeV at midrapidity (

|y|<0.5

) was measured with the ALICE detector at the LHC, covering an unprecedented transverse-momentum range of

1.6 < p_{\rm T} <50

GeV/

c

. The meson is reconstructed via the

\omega\rightarrow\pi^+\pi^-\pi^0

decay channel. The results are compared with various theoretical calculations: PYTHIA8.2 with the Monash 2013 tune overestimates the data by up to 50%, whereas good agreement is observed with Next-to-Leading Order (NLO) calculations incorporating

\omega

fragmentation using a broken SU(3) model. The

\omega/\pi^0

ratio is presented and compared with theoretical calculations and the available measurements at lower collision energies. The presented data triples the

p_{\rm T}

ranges of previously available measurements. A constant ratio of

C^{\omega/\pi^0}=0.578\pm0.006~\text{(stat.)}\pm 0.013~\text{(syst.)}

is found above a transverse momentum of 4 GeV/

c

, which is in agreement with previous findings at lower collision energies within the systematic and statistical uncertainties.

Note:

26 pages, 5 captioned figures, 1 table, authors from page 20, submitted to JHEP, figures at http://alice-publications.web.cern.ch/node/11737

References(58)

Figures(9)

[1]

Asymptotically Free Gauge Theories - I

D.J. Gross
(
- Fermilab and
- Princeton U.
)
,
Frank Wilczek
(
- Princeton U.
)

- Phys.Rev.D 8 (1973) 3633-3652,
- Also in *Lichtenberg, D. B. (Ed.), Rosen, S. P. (Ed.): Developments In The Quark Theory Of Hadrons, Vol. 1*, 247-266,
- In *Mohapatra, R. N. (Ed.), Lai, C. H. (Ed.): Gauge Theories Of Fundamental Interactions*, 337-356
•
DOI:
- 10.1103/PhysRevD.8.3633

[2]

Factorization of Hard Processes in QCD

John C. Collins
(
- IIT, Chicago and
- SUNY, Stony Brook
)
,
Davison E. Soper
(
- Oregon U.
)
,
George F. Sterman
(
- SUNY, Stony Brook
)

- Adv.Ser.Direct.High Energy Phys. 5 (1989) 1-91
•
e-Print:
- hep-ph/0409313
•
DOI:
- 10.1142/9789814503266_0001

[3]

Parton Distribution and Decay Functions

John C. Collins
(
- IIT, Chicago
)
,
Davison E. Soper
(
- Oregon U.
)

- Nucl.Phys.B 194 (1982) 445-492
•
DOI:
- 10.1016/0550-3213(82)90021-9

[4]

A Parametrization of the Properties of Quark Jets

R.D. Field
(
- Caltech
)
,
R.P. Feynman
(
- Caltech
)

- Nucl.Phys.B 136 (1978) 1,
•
DOI:
- 10.1016/0550-3213(78)90015-9

[5]

Neutral pion and $\eta$ meson production in proton-proton collisions at $\sqrt{s}=0.9$ TeV and $\sqrt{s}=7$ TeV

ALICE

Collaboration

•

B. Abelev
(
- LLNL, Livermore
)

et al.

- Phys.Lett.B 717 (2012) 162-172
•
e-Print:
- 1205.5724
•
DOI:
- 10.1016/j.physletb.2012.09.015

[6]

Production of ${\pi ^0}$ and $\eta$ mesons up to high transverse momentum in pp collisions at 2.76 TeV

ALICE

Collaboration

•

Shreyasi Acharya
(
- Calcutta, VECC
)

et al.

- Eur.Phys.J.C 77 (2017) 5, 339,
- Eur.Phys.J.C 77 (2017) 9, 586 (editorial note)
•
e-Print:
- 1702.00917
•
DOI:
- 10.1140/epjc/s10052-017-4890-x

[7]

Nuclear modification factor of light neutral-meson spectra up to high transverse momentum in p–Pb collisions at sNN=8.16 TeV

ALICE

Collaboration

•

Shreyasi Acharya
(
- Calcutta, VECC
)

et al.

- Phys.Lett.B 827 (2022) 136943
•
e-Print:
- 2104.03116
•
DOI:
- 10.1016/j.physletb.2022.136943

[8]

Impact of inclusive hadron production data on nuclear gluon PDFs

et al.

- Phys.Rev.D 104 (2021) 094005
•
e-Print:
- 2105.09873
•
DOI:
- 10.1103/PhysRevD.104.094005

[9]

Parton-to-Pion Fragmentation Reloaded

Daniel de Florian
(
- Buenos Aires U.
)
,
R. Sassot
(
- Buenos Aires U.
)
,
Manuel Epele
(
- La Plata U. and
- Buenos Aires, CONICET
)
,
Roger J. Hernández-Pinto
(
- Buenos Aires U. and
- Valencia U., IFIC
)
,
Marco Stratmann
(
- Tubingen U.
)

- Phys.Rev.D 91 (2015) 1, 014035
•
e-Print:
- 1410.6027
•
DOI:
- 10.1103/PhysRevD.91.014035

[10]

The Hadronization of partons

Simon Albino
(
- Hamburg U., Inst. Theor. Phys. II
)

- Rev.Mod.Phys. 82 (2010) 2489-2556
•
e-Print:
- 0810.4255
•
DOI:
- 10.1103/RevModPhys.82.2489

[11]

A determination of the fragmentation functions of pions, kaons, and protons with faithful uncertainties

NNPDF

Collaboration

•

Valerio Bertone
(
- Vrije U., Amsterdam and
- NIKHEF, Amsterdam
)

et al.

- Eur.Phys.J.C 77 (2017) 8, 516
•
e-Print:
- 1706.07049
•
DOI:
- 10.1140/epjc/s10052-017-5088-y

[12]

Vector meson fragmentation using a model with broken SU(3) at the Next-to-Leading Order

- Int.J.Mod.Phys.A 29 (2014) 07, 1450049
•
e-Print:
- 1309.2134
•
DOI:
- 10.1142/S0217751X14500493

[13]

Fragmentation of $\omega$ and $\phi$ Mesons in $e^+ e^-$ and $p p$ Collisions at NLO

H. Saveetha
(
- IMSc, Chennai
)
,
D. Indumathi
(
- IMSc, Chennai
)

- Int.J.Mod.Phys.A 32 (2017) 33, 33
•
e-Print:
- 1705.00214
•
DOI:
- 10.1142/S0217751X17501998

[14]

NLO Productions of $\omega$ and $K^0_{\mathrm{S}}$ with a global extraction of the jet transport parameter in heavy-ion collisions

- Eur.Phys.J.C 79 (2019) 6, 518
•
e-Print:
- 1812.02033
•
DOI:
- 10.1140/epjc/s10052-019-7005-z

[15]

Production of $\omega$ mesons in pp collisions at $\mathbf {\sqrt{s}=7\,\text {TeV}}$

ALICE

Collaboration

•

Shreyasi Acharya
(
- Calcutta, VECC
)

et al.

- Eur.Phys.J.C 80 (2020) 12, 1130
•
e-Print:
- 2007.02208
•
DOI:
- 10.1140/epjc/s10052-020-08651-y

[16]

Applicability of transverse mass scaling in hadronic collisions at energies available at the CERN Large Hadron Collider

- Phys.Rev.C 96 (2017) 6, 064907
•
e-Print:
- 1710.01933
•
DOI:
- 10.1103/PhysRevC.96.064907

[17]

An introduction to PYTHIA 8.2

et al.

- Comput.Phys.Commun. 191 (2015) 159-177
•
e-Print:
- 1410.3012
•
DOI:
- 10.1016/j.cpc.2015.01.024

[18]

Review of particle physics

S. Navas
(
- Granada U., Theor. Phys. Astrophys. and
- CAFPE, Granada
)
,
C. Amsler
(
- Stefan Meyer Inst. Subatomare Phys.
)
,
T. Gutsche
(
- Tubingen U.
)
,
C. Hanhart
(
- IAS, Julich
)
,
J.J. Hernández-Rey
(
- Valencia U. and
- Valencia U., IFIC
)

et al.

- Phys.Rev.D 110 (2024) 3, 030001
•
DOI:
- 10.1103/PhysRevD.110.030001

[19]

ALICE Inner Tracking System (ITS): Technical Design Report

ALICE Collaboration

Collaboration

[20]

The ALICE TPC, a large 3-dimensional tracking device with fast readout for ultra-high multiplicity events

J. Alme
(
- Bergen U.
)
,
Y. Andres
(
- CERN
)
,
H. Appelshauser
(
- Frankfurt U., FIAS
)
,
S. Bablok
(
- Bergen U.
)
,
N. Bialas
(
- Bergen U.
)

et al.

- Nucl.Instrum.Meth.A 622 (2010) 316-367
•
e-Print:
- 1001.1950
•
DOI:
- 10.1016/j.nima.2010.04.042

[21]

ALICE electromagnetic calorimeter technical design report

ALICE

Collaboration

•

P. Cortese
(
- Piemonte Orientale U., Alessandria
)

et al.

[22]

Performance of the ALICE Electromagnetic Calorimeter

ALICE

Collaboration

•

Shreyasi Acharya
(
- Clermont-Ferrand U.
)

et al.

- JINST 18 (2023) 08, P08007
•
e-Print:
- 2209.04216
•
DOI:
- 10.1088/1748-0221/18/08/P08007

[23]

ALICE technical design report of the photon spectrometer (PHOS)

ALICE

Collaboration

•

G. Dellacasa
(
- Turin U., Alessandria
)

et al.

[24]

Performance of the ALICE VZERO system

ALICE

Collaboration

•

E. Abbas
(
- Cairo, Acad. Sci. Res. Tech.
)

et al.

- JINST 8 (2013) P10016
•
e-Print:
- 1306.3130
•
DOI:
- 10.1088/1748-0221/8/10/P10016

[25]

The ALICE experiment at the CERN LHC

ALICE

Collaboration

•

K. Aamodt
(
- Oslo U.
)

et al.

- JINST 3 (2008) S08002
•
DOI:
- 10.1088/1748-0221/3/08/S08002

1-25 of 58
1
2
3
25 / page