Event texture search for critical fluctuations in Pb plus Pb collisions
(2002) In Nuclear Physics, Section A 698. p.651-654- Abstract
- NA44 uses a 512 channel Si pad array covering 1.5 < eta < 3.3 to study charged hadron production in 158 A GeV Pb+Pb collisions at the CERN SPS. We apply a multiresolution analysis, based on a Discrete Wavelet Transformation, to probe the texture of particle distributions event-by-event, by simultaneous localization of features in space and scale. Scanning a broad range of multiplicities, we look for possible critical behaviour in the power spectra of local density fluctuations. The data axe compared with detailed simulations of detector response, using heavy ion event generators, and with a reference sample created via event mixing. An upper limit is set on the probability and magnitude of dynamical fluctuations.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/343371
- author
- Kopytine, ML ; Schmidt-Sörensen, Janus LU and al., et
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Nuclear Physics, Section A
- volume
- 698
- pages
- 651 - 654
- publisher
- Elsevier
- external identifiers
-
- wos:000173799700110
- ISSN
- 0375-9474
- language
- English
- LU publication?
- yes
- id
- 15373c37-4f16-41da-ae11-752479ae6357 (old id 343371)
- date added to LUP
- 2016-04-01 16:16:43
- date last changed
- 2018-11-21 20:40:07
@article{15373c37-4f16-41da-ae11-752479ae6357, abstract = {{NA44 uses a 512 channel Si pad array covering 1.5 < eta < 3.3 to study charged hadron production in 158 A GeV Pb+Pb collisions at the CERN SPS. We apply a multiresolution analysis, based on a Discrete Wavelet Transformation, to probe the texture of particle distributions event-by-event, by simultaneous localization of features in space and scale. Scanning a broad range of multiplicities, we look for possible critical behaviour in the power spectra of local density fluctuations. The data axe compared with detailed simulations of detector response, using heavy ion event generators, and with a reference sample created via event mixing. An upper limit is set on the probability and magnitude of dynamical fluctuations.}}, author = {{Kopytine, ML and Schmidt-Sörensen, Janus and al., et}}, issn = {{0375-9474}}, language = {{eng}}, pages = {{651--654}}, publisher = {{Elsevier}}, series = {{Nuclear Physics, Section A}}, title = {{Event texture search for critical fluctuations in Pb plus Pb collisions}}, volume = {{698}}, year = {{2002}}, }