Lee-Yang Circle Analysis for Generalized Multiplicity Distribution

Dewanto, A.; Chan, A. H.; Oh, C. H.

doi:10.1142/s0218301307009270

Cited by 2 publications

(2 citation statements)

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“…Table 1 GMD parameters in (13) for TASSO and AMY data, taken from [9]. The numbers inside the parentheses refer to the total number of multiplicity data N We, however, notice right away that the e + e − multiplicity distributions show some characteristics that distinguish them from their pp and pp counterparts, which we have studied earlier in [22] using the multiplicity data from UA5 Collaboration at √ s = 200, 546 and 900 GeV [23,24]. Here, we have to take into account the "shoulder"-like structure at the tail of the distribution that has become too significant to neglect.…”

Section: Resultsmentioning

confidence: 96%

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Lee-Yang circle analysis of e + e − and $p\overline{p}$ generalized multiplicity distribution

Dewanto¹,

Chan²,

Oh³

et al. 2008

Eur. Phys. J. C

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We study the evolution of Lee-Yang zeros structure of generalized multiplicity distribution (GMD) in high energy collision. Starting our study with electron-positron e + e − scattering data, we extend the study by Chan and Chew (Z. Phys. C 55:503, 1992) on TASSO and AMY multiplicity data for √ s = 14, 22, 34.8, 43.6 and 57 GeV to the ones from DELPHI and OPAL Collaboration for √ s = 91, 133, 161, 172, 183 and 189 GeV. We compare the results with the Lee-Yang structure for proton-antiproton pp at √ s = 200, 546 and 900 GeV from UA5 Collaboration. Our preliminary result shows that there is indeed a change in the shape and size of the Lee-Yang zeros with increasing energy, accompanied by the development of the so-called "ear"-like structure in the Lee-Yang plot. We expect that the development of this "ear"-like structure is related to the "shoulder" structure in the multiplicity data, which further indicates an ongoing phase transition from soft to semihard scattering. We also extend our prediction to LHC's √ s = 14 TeV. Insert your abstract here.

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Section: Resultsmentioning

confidence: 96%

“…As the scattering energy goes higher, the semihard component becomes more significant. Thus, the distribution function P n should also be written as the superposition of 2 GMDs, one for soft and the other for semihard term respectively We quote the parameters we used in [22] below (see Table 3), while the Lee-Yang plots are shown in Fig. 4.…”

Section: Resultsmentioning

confidence: 99%

Lee-Yang circle analysis of e + e − and $p\overline{p}$ generalized multiplicity distribution

Dewanto¹,

Chan²,

Oh³

et al. 2008

Eur. Phys. J. C

Self Cite

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Oscillatory Moments in Lee-Yang Zeros and LHC Predictions

Dewanto

Chan

Lim

et al. 2009

Int. J. Mod. Phys. A

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We study the moments of multiplicty distribution and its relation to the Lee-Yang zeros of the generating function in electron-positron and hadron-hadron high energy collision. Our work shows that GMD moments can reproduce the oscillatory behaviour as shown in the experimental data and predicted by quantum chromodynamics at preasymptotic energy, while it can also be used to distinguish electron-positron (e+e-) multiplicity data from hadron-hadron (pp and [Formula: see text]) multiplicity. Furthermore, there seems to be a link between the development of shoulder structure in the multiplicity distribution and the development of ear structure in the Lee-Yang zeros. We predict that these structures is going to be very obvious at 14 TeV. We argue that the development of these structures indicates an ongoing transition from quark-dominated soft scattering events to gluon-dominated semihard scattering events.

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Lee-Yang Circle Analysis for Generalized Multiplicity Distribution

Cited by 2 publications

References 10 publications

Lee-Yang circle analysis of e + e − and $p\overline{p}$ generalized multiplicity distribution

Lee-Yang circle analysis of e + e − and $p\overline{p}$ generalized multiplicity distribution

Oscillatory Moments in Lee-Yang Zeros and LHC Predictions

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