K0s-K0s correlations in pp collisions at vs=7 TeV from the LHC ALICE experiment.

B. Abelev; Hans Bøggild; Ian Bearden; Christian Holm Christensen; Hans Hjersing Dalsgaard; Kristjan Herlache Gulbrandsen; Jens Jørgen Gaardhøje; Børge Svane Nielsen; Casper Nygaard; Carsten Søgaard

doi:10.1016/j.physletb.2012.09.013

K⁰_s-K⁰_s correlations in pp collisions at vs=7 TeV from the LHC ALICE experiment.

B. Abelev, Hans Bøggild, Ian Bearden, Christian Holm Christensen, Hans Hjersing Dalsgaard, Kristjan Herlache Gulbrandsen, Jens Jørgen Gaardhøje, Børge Svane Nielsen, Casper Nygaard, Carsten Søgaard

Experimental Particle Physics

20 Citations (Scopus)

Abstract

Identical neutral kaon pair correlations are measured in s=7TeV 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, m_T, 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.

Original language	English
Journal	Physics Letters B
Volume	717
Issue number	1-3
Pages (from-to)	151-161
ISSN	0370-2693
DOIs	https://doi.org/10.1016/j.physletb.2012.09.013
Publication status	Published - 22 Oct 2012

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10.1016/j.physletb.2012.09.013

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@article{d5ed40a81a0341039ec57561c022fc1e,

title = "K0s-K0s correlations in pp collisions at vs=7 TeV from the LHC ALICE experiment.",

abstract = "Identical neutral kaon pair correlations are measured in s=7TeV 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.",

author = "B. Abelev and Hans B{\o}ggild and Ian Bearden and Christensen, {Christian Holm} and Dalsgaard, {Hans Hjersing} and Gulbrandsen, {Kristjan Herlache} and Gaardh{\o}je, {Jens J{\o}rgen} and Nielsen, {B{\o}rge Svane} and Casper Nygaard and Carsten S{\o}gaard",

year = "2012",

month = oct,

day = "22",

doi = "10.1016/j.physletb.2012.09.013",

language = "English",

volume = "717",

pages = "151--161",

journal = "Physics Letters B: Particle Physics, Nuclear Physics and Cosmology",

issn = "0370-2693",

publisher = "Elsevier",

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TY - JOUR

T1 - K0s-K0s correlations in pp collisions at vs=7 TeV from the LHC ALICE experiment.

AU - Abelev, B.

AU - Bøggild, Hans

AU - Bearden, Ian

AU - Christensen, Christian Holm

AU - Dalsgaard, Hans Hjersing

AU - Gulbrandsen, Kristjan Herlache

AU - Gaardhøje, Jens Jørgen

AU - Nielsen, Børge Svane

AU - Nygaard, Casper

AU - Søgaard, Carsten

PY - 2012/10/22

Y1 - 2012/10/22

N2 - Identical neutral kaon pair correlations are measured in s=7TeV 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.

AB - Identical neutral kaon pair correlations are measured in s=7TeV 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.

U2 - 10.1016/j.physletb.2012.09.013

DO - 10.1016/j.physletb.2012.09.013

M3 - Journal article

SN - 0370-2693

VL - 717

SP - 151

EP - 161

JO - Physics Letters B: Particle Physics, Nuclear Physics and Cosmology

JF - Physics Letters B: Particle Physics, Nuclear Physics and Cosmology

IS - 1-3

ER -

K0s-K0s correlations in pp collisions at vs=7 TeV from the LHC ALICE experiment.

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K⁰_s-K⁰_s correlations in pp collisions at vs=7 TeV from the LHC ALICE experiment.