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Title: New method for measuring longitudinal fuctuations and directed flow in ultrarelativistic heavy ion reactions
Author: Csernai, L. P.
Eyyubova, G.
Magas, V. K.
Keywords: Física nuclear
Reaccions nuclears
Nuclear physics
Nuclear reactions
Issue Date: 2012
Publisher: American Physical Society
Abstract: It has been shown in recent ALICE@LHC measurements that the odd flow harmonics, in particular, a directed flow v1, occurred to be weak and dominated by random fluctuations. In this work we propose a new method, which makes the measurements more sensitive to the flow patterns showing global collective symmetries. We demonstrate how the longitudinal center of mass rapidity fluctuations can be identified, and then the collective flow analysis can be performed in the event-by-event center of mass frame. Such a method can be very effective in separating the flow patterns originating from random fluctuations, and the flow patterns originating from the global symmetry of the initial state.
Note: Reproducció del document publicat a:
It is part of: Physical Review C, 2012, vol. 86, num. 2, p. 024912
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ISSN: 0556-2813
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)
Publicacions de projectes de recerca finançats per la UE

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