Production of $\Sigma(1385)^{\pm}$ and $\Xi(1530)^{0}$ in p-Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV - INSPIRE

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Production of $\Sigma(1385)^{\pm}$ and $\Xi(1530)^{0}$ in p-Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV

ALICE

Collaboration

•

Dagmar Adamova
(
- Rez, Nucl. Phys. Inst.
)

Jan 26, 2017

23 pages

Published in:

Eur.Phys.J.C 77 (2017) 6, 389

Published: Jun 13, 2017

e-Print:

1701.07797 [nucl-ex]

DOI:

10.1140/epjc/s10052-017-4943-1

Report number:

CERN-EP-2017-017

Experiments:

CERN-LHC-ALICE

View in:

reference search58 citations

Citations per year

Abstract: (Springer)

The transverse momentum distributions of the strange and double-strange hyperon resonances (

\Sigma (1385)^{\pm }

,

\Xi (1530)^{0}

) produced in p–Pb collisions at

\sqrt{s_{\mathrm{NN}}}= 5.02

TeV were measured in the rapidity range

-0.5< y_\mathrm {CMS}<0

for event classes corresponding to different charged-particle multiplicity densities,

\langle

d

N_{\mathrm{ch}}

/d

\eta _{\mathrm{lab}}\rangle

. The mean transverse momentum values are presented as a function of

\langle

d

N_{\mathrm{ch}}

/d

\eta _{\mathrm{lab}}\rangle

, as well as a function of the particle masses and compared with previous results on hyperon production. The integrated yield ratios of excited to ground-state hyperons are constant as a function of

\langle

d

N_{\mathrm{ch}}

/d

\eta _{\mathrm{lab}}\rangle

. The equivalent ratios to pions exhibit an increase with

\langle

d

N_{\mathrm{ch}}

/d

\eta _{\mathrm{lab}}\rangle

, depending on their strangeness content.

Note:

23 pages, 9 captioned figures, 6 tables, authors from page 18, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/3353

Sigma(1385): production
Xi(1530): production
hyperon: ground state
hyperon: production
transverse momentum: momentum spectrum
rapidity
charged particle: multiplicity
multiplicity: density
yield: ratio
strangeness

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