Kaon femtoscopy in Pb-Pb collisions at √sNN = 2.76 TeV
ALICE Collaboration. (2017). Kaon femtoscopy in Pb-Pb collisions at √sNN = 2.76 TeV. Physical Review C, 96(6), Article 064613. https://doi.org/10.1103/PhysRevC.96.064613
Julkaistu sarjassa
Physical Review CTekijät
Päivämäärä
2017Tekijänoikeudet
©2017 CERN, for the ALICE Collaboration. This is an open access article distributed under the terms of the Creative Commons License.
We present the results of three-dimensional femtoscopic analyses for charged and neutral kaons recorded by ALICE in Pb-Pb collisions at
√
s
NN
=
2.76
TeV. Femtoscopy is used to measure the space-time characteristics of particle production from the effects of quantum statistics and final-state interactions in two-particle correlations. Kaon femtoscopy is an important supplement to that of pions because it allows one to distinguish between different model scenarios working equally well for pions. In particular, we compare the measured three-dimensional kaon radii with a purely hydrodynamical calculation and a model where the hydrodynamic phase is followed by a hadronic rescattering stage. The former predicts an approximate transverse mass (
m
T
) scaling of source radii obtained from pion and kaon correlations. This
m
T
scaling appears to be broken in our data, which indicates the importance of the hadronic rescattering phase at LHC energies. A
k
T
scaling of pion and kaon source radii is observed instead. The time of maximal emission of the system is estimated by using the three-dimensional femtoscopic analysis for kaons. The measured emission time is larger than that of pions. Our observation is well supported by the hydrokinetic model predictions.
...
Julkaisija
American Physical SocietyISSN Hae Julkaisufoorumista
2469-9985Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/27850210
Metadata
Näytä kaikki kuvailutiedotKokoelmat
Lisenssi
Ellei muuten mainita, aineiston lisenssi on ©2017 CERN, for the ALICE Collaboration. This is an open access article distributed under the terms of the Creative Commons License.
Samankaltainen aineisto
Näytetään aineistoja, joilla on samankaltainen nimeke tai asiasanat.
-
Azimuthally-differential pion femtoscopy relative to the third harmonic event plane in Pb–Pb collisions at √sNN = 2.76 TeV
ALICE Collaboration (Elsevier B.V., 2018)Azimuthally-differential femtoscopic measurements, being sensitive to spatio-temporal characteristics of the source as well as to the collective velocity fields at freeze out, provide very important information on the ... -
One-dimensional charged kaon femtoscopy in p-Pb collisions at √sNN = 5.02 TeV
ALICE Collaboration (American Physical Society, 2019)The correlations of identical charged kaons were measured in p-Pb collisions at √sNN=5.02 TeV by the ALICE experiment at the LHC. The femtoscopic invariant radii and correlation strengths were extracted from one-dimensional ... -
Azimuthally Differential Pion Femtoscopy in Pb-Pb Collisions at √sNN = 2.76 TeV
ALICE Collaboration (American Physical Society, 2017)We present the first azimuthally differential measurements of the pion source size relative to the second harmonic event plane in Pb-Pb collisions at a center-of-mass energy per nucleon-nucleon pair of √ s N N = 2 ... -
Study of the Λ–Λ interaction with femtoscopy correlations in pp and p–Pb collisions at the LHC
ALICE Collaboration (Elsevier, 2019)This work presents new constraints on the existence and the binding energy of a possible Λ–Λ bound state, the H-dibaryon, derived from Λ–Λ femtoscopic measurements by the ALICE collaboration. The results are obtained from ... -
Investigation of the p–Σ0 interaction via femtoscopy in pp collisions
ALICE Collaboration (Elsevier, 2020)This Letter presents the first direct investigation of the p–Σ0 interaction, using the femtoscopy technique in high-multiplicity pp collisions at s=13 TeV measured by the ALICE detector. The Σ0 is reconstructed via the ...
Ellei toisin mainittu, julkisesti saatavilla olevia JYX-metatietoja (poislukien tiivistelmät) saa vapaasti uudelleenkäyttää CC0-lisenssillä.