$K^0_s-K^0_s$ correlations in $pp$ collisions at $\sqrt{s}=7$ TeV from the LHC ALICE experiment - INSPIRE

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$K^0_s-K^0_s$ correlations in $pp$ collisions at $\sqrt{s}=7$ TeV from the LHC ALICE experiment

ALICE

Collaboration

Jun, 2012

11 pages

Published in:

Phys.Lett.B 717 (2012) 151-161

Published: Jul 16, 2013

e-Print:

1206.2056 [hep-ex]

DOI:

10.1016/j.physletb.2012.09.013

Report number:

CERN-PH-EP-2012-160

Experiments:

CERN-LHC-ALICE

View in:

reference search39 citations

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Abstract: (Elsevier)

Identical neutral kaon pair correlations are measured in s=7 TeV pp collisions in the ALICE experiment. One-dimensional Ks0Ks0 correlation functions in terms of the invariant momentum difference of kaon pairs are formed in two multiplicity and two transverse momentum ranges. The femtoscopic parameters for the radius and correlation strength of the kaon source are extracted. The fit includes quantum statistics and final-state interactions of the a0/f0 resonance. Ks0Ks0 correlations show an increase in radius for increasing multiplicity and a slight decrease in radius for increasing transverse mass, mT , as seen in ππ correlations in pp collisions and in heavy-ion collisions. Transverse mass scaling is observed between the Ks0Ks0 and ππ radii. Also, the first observation is made of the decay of the f2′(1525) meson into the Ks0Ks0 channel in pp collisions.

Note:

17 pages, 7 captioned figures, 2 tables, authors from page 12, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/3102

mass: transverse
p p: scattering
correlation: two-pion
momentum: difference
statistics: quantum
scaling
multiplicity: dependence
ALICE
final-state interaction
correlation function: (2K0(S))

References(22)

Figures(7)

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