Speaker
Masayuki Asakawa
(Osaka University)
Description
We study the effect of the difference between momentum- and
coordinate-space rapidities on the experimental measurements
of fluctuation observables in relativistic heavy ion collisions.
In theoretical studies on fluctuation observables,
observables in fixed coordinate-space rapidity windows are
concerned because the analyses are usually performed in finite volume.
The experimental measurements, however, can be performed only
for momentum-space (or pesudo-) rapidity.
The latter is usually used as a proxy of the former implicitly.
However, thermal motion blurs this one-to-one correspondence.
We investigate this effect quantitatively,
and show that thermal motion gives rise to significant
effects, which should be carefully taken into account in
the interpretation of the experimental results
of fluctuation observables.
It is argued that this modification can be estimated by the
study of the rapidity window dependences of the cumulants
and implemented in the description of the time evolution of
fluctuations.
| On behalf of collaboration: | NONE |
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Author
Masayuki Asakawa
(Osaka University)
Co-authors
Prof.
Masakiyo Kitazawa
(Osaka University)
Miki Sakaida
Mr
Yutaro Onishi
(Osaka University)
