Charged-particle Multiplicity Distributions in E+e- Annihilation and Negative Binomial Distributions

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Book Synopsis Charged-particle Multiplicity Distributions in E+e- Annihilation and Negative Binomial Distributions by : C. K. Chew

Download or read book Charged-particle Multiplicity Distributions in E+e- Annihilation and Negative Binomial Distributions written by C. K. Chew and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Multiplicity Distributions in Ee− Annihilation at 29 GeV

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Book Synopsis Multiplicity Distributions in Ee− Annihilation at 29 GeV by :

Download or read book Multiplicity Distributions in Ee− Annihilation at 29 GeV written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The charged particle multiplicity distributions for single jets in ee− annihilation at 29 GeV have been measured using the High Resolution Spectrometer at PEP. The shape of the distribution agrees well with a Poisson distribution. No correlation is observed between the multiplicities in the two jets of an event. For fixed values of the prong number of the total event, the multiplicity sharing between the two jets is in good agreement with a binomial distribution. These observations are contrasted to the results from soft hadronic collisions and conclusions are drawn about the nature of clusters. 21 refs., 4 figs.

Multiplicity Distributions in Ee− Annihilation at 29 GeV.

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Book Synopsis Multiplicity Distributions in Ee− Annihilation at 29 GeV. by :

Download or read book Multiplicity Distributions in Ee− Annihilation at 29 GeV. written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper presents the charged particle multiplicity distributions of ee− annihilation at .sqrt. s = 29 GeV measured in the High Resolution Spectrometer. The data, which corresponds to an integrated luminosity of 185 pb−1, were obtained at the ee− storage ring PEP. The multiplicity distribution of the charged particles has a mean value n = 12.87 +- 0.03 +- 0.30, a dispersion D2 = 3.67 +- 0.02 +- 0.18, and an f2 momentum of 0.60 +- 0.02 +- 0.18. Results are also presented for a two-jet sample selected with low sphericity and aplanarity. The charged particle distributions are almost Poissonian and narrower than results reported by other e+e− experiments in this energy range. The mean multiplicity increases with the event sphericity and for the sample of three-fold-symmetric three-jet events, a value of n = 16.3 +- 0.3 +- 0.7 is found. No correlation is observed between the multiplicities in the two hemispheres when the events are divided into two jets by a plane perpendicular to the thrust axis. For the single jets, a mean multiplicity of n = 6.43 +- 0.02 +- 0.15 and dispersion value of D2 = 2.55 +- 0.02 +- 0.13 are found. These values give further support to the idea of independent jet fragmentation. 20 refs., 13 figs.

Negative Binomial Fits to Multiplicity Distributions in Restricted?? Intervals from Central O+Cu Collisions at 14.6A GeV/c and Their Implication for Ì̀ntermittencỳ̀

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Total Pages : 6 pages
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Book Synopsis Negative Binomial Fits to Multiplicity Distributions in Restricted?? Intervals from Central O+Cu Collisions at 14.6A GeV/c and Their Implication for Ì̀ntermittencỳ̀ by :

Download or read book Negative Binomial Fits to Multiplicity Distributions in Restricted?? Intervals from Central O+Cu Collisions at 14.6A GeV/c and Their Implication for Ì̀ntermittencỳ̀ written by and published by . This book was released on 1993 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluctuations in pseudorapidity of charged particle multiplicity from central (ZCAL) collisions of 16O+Cu at 14.6 A·GeV/c have been analyzed by the E802 Collaboration using the method of normalized factorial moments as a function of the interval??. In agreement with previous measurements, an apparent power-law growth of moments with decreasing interval is observed down to?? - 0.1. Experience with E{sub T} distributions suggests that fluctuations of multiplicity and transverse energy can be well described by Gamma or Negative Binomial Distributions (NBD) and excellent fits to NBD were obtained in all?? bins. The? parameter of the NBD fit was found to increase linearly with the?? interval, which due to the well known property of the NBD under convolution, indicates that the multiplicity distributions in adjacent bins of pseudorapidity?? - 0.1 are largely statistically independent.

Negative Binomial Fits to Multiplicity Distributions from Central Collisions of [sup 16]O + Cu at 14.6A GeV/c and Intermittency

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Book Synopsis Negative Binomial Fits to Multiplicity Distributions from Central Collisions of [sup 16]O + Cu at 14.6A GeV/c and Intermittency by :

Download or read book Negative Binomial Fits to Multiplicity Distributions from Central Collisions of [sup 16]O + Cu at 14.6A GeV/c and Intermittency written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An 'intermittency' analysis of charged particle multiplicity data from the target multiplicy array (TMA) in central collisions of [sup 16]O+Cu at 14.6 A[times]GeV/c has been published by the AGS-E802 collaboration. The centrality cut was made using the Zero degree Calorimeter and requiring that the forward energy be less than one projectile nucleon (i.e. T[sub ZCAL]

Negative Binomial Fits to Multiplicity Distributions from Central Collisions of 16O + Cu at 14.6A GeV/c and Intermittency

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Total Pages : 15 pages
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Book Synopsis Negative Binomial Fits to Multiplicity Distributions from Central Collisions of 16O + Cu at 14.6A GeV/c and Intermittency by :

Download or read book Negative Binomial Fits to Multiplicity Distributions from Central Collisions of 16O + Cu at 14.6A GeV/c and Intermittency written by and published by . This book was released on 1994 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: An ìntermittency ̀analysis of charged particle multiplicity data from the target multiplicy array (TMA) in central collisions of 16O+Cu at 14.6 A×GeV/c has been published by the AGS-E802 collaboration. The centrality cut was made using the Zero degree Calorimeter and requiring that the forward energy be less than one projectile nucleon (i.e. T{sub ZCAL}

Negative Binomial Fits to Multiplicity Distributions in Restricted [delta][eta] Intervals from Central O+Cu Collisions at 14.6A GeV/c and Their Implication for ''Intermittency''

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Book Synopsis Negative Binomial Fits to Multiplicity Distributions in Restricted [delta][eta] Intervals from Central O+Cu Collisions at 14.6A GeV/c and Their Implication for ''Intermittency'' by :

Download or read book Negative Binomial Fits to Multiplicity Distributions in Restricted [delta][eta] Intervals from Central O+Cu Collisions at 14.6A GeV/c and Their Implication for ''Intermittency'' written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluctuations in pseudorapidity of charged particle multiplicity from central (ZCAL) collisions of [sup 16]O+Cu at 14.6 A[center-dot]GeV/c have been analyzed by the E802 Collaboration using the method of normalized factorial moments as a function of the interval [delta][eta]. In agreement with previous measurements, an apparent power-law growth of moments with decreasing interval is observed down to [delta][eta] [approximately] 0.1. Experience with E[sub T] distributions suggests that fluctuations of multiplicity and transverse energy can be well described by Gamma or Negative Binomial Distributions (NBD) and excellent fits to NBD were obtained in all [delta][eta] bins. The [kappa] parameter of the NBD fit was found to increase linearly with the [delta][eta] interval, which due to the well known property of the NBD under convolution, indicates that the multiplicity distributions in adjacent bins of pseudorapidity [delta][eta] [approximately] 0.1 are largely statistically independent.

E-e− Hadronic Multiplicity Distributions

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Book Synopsis E-e− Hadronic Multiplicity Distributions by :

Download or read book E-e− Hadronic Multiplicity Distributions written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The 29 GeV multiplicity data have been analyzed for e -e− .-->. hadrons using the partially coherent laser distribution (PCLD). The latter interpolates between the negative binomial and Poisson distributions as the ratio S/N of coherent/incoherent multiplcity varies from zero to infinity. The negative binomial gives an excellent fit for rather large values of the cell parameter k. Equally good fits (for full and partial rapidity range, and for the forward/backward 2 jet correlation) are obtained for the mostly coherent (almost Poissonian) PCLD with small values of k (equal to the number of jets). The reasons for the existence of this tradeoff are explained in detail. The existence of the resulting ambiguity is traced to the insensitivity of the probability distribution to phase information in the hadronic density matrix. The study of higher order correlations (intensity interferometry) among like sign-particles is recommended to resolve this question.

Charged-particle Inclusive Distributions from Hadronic Z Sup 0 Decays

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Total Pages : 5 pages
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Book Synopsis Charged-particle Inclusive Distributions from Hadronic Z Sup 0 Decays by :

Download or read book Charged-particle Inclusive Distributions from Hadronic Z Sup 0 Decays written by and published by . This book was released on 1990 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: We have measured inclusive distributions for charged particles in hadronic decays of the Z boson. The variables chosen for study were the mean charged-particle multiplicity ({l angle} n{sub ch} {r angle}), scaled momentum (x), and momenta transverse to the sphericity axes (p(up tack){sub in} and p(up tack){sub out}). The distributions have been corrected for detector effects and are compared with data from ee− annihilation at lower energies and with the predictions of several QCD-based models. The data are in reasonable agreement with expectations. 12 refs., 2 figs.

Multiplicity Distributions and Nuclear Effects in [pi]−d Interactions at 15 GeV/c

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ISBN 13 :
Total Pages : 528 pages
Book Rating : 4.:/5 (34 download)

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Book Synopsis Multiplicity Distributions and Nuclear Effects in [pi]−d Interactions at 15 GeV/c by : Frank Clifford Porter

Download or read book Multiplicity Distributions and Nuclear Effects in [pi]−d Interactions at 15 GeV/c written by Frank Clifford Porter and published by . This book was released on 1977 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Charged-particle Multiplicity Distribution in [math Display

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ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (96 download)

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Book Synopsis Charged-particle Multiplicity Distribution in [math Display by :

Download or read book Charged-particle Multiplicity Distribution in [math Display written by and published by . This book was released on 1975 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Charged-particle multiplicity distributions in 300-GeV/c pd interactions have been determined from an exposure of the Fermi National Accelerator Laboratory 30-in. bubble chamber. The data show clear evidence for double scattering inside the deuterium nucleus. We have been able to correct for the effects of the second scatters using a simple semiempirical model. The resulting pp multiplicity distribution is in excellent agreement with the pp data obtained from a p-H2 experiment at the same energy. The pn multiplicity distribution appears to be shifted from the pp distribution with $\langle$nc$\rangle$ pn=7.84±0.17.

Charged multiplicity distributions and correlations in e+e- [ee] annihilation at PETRA energies

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Book Synopsis Charged multiplicity distributions and correlations in e+e- [ee] annihilation at PETRA energies by : Deutsches Elektronen-Synchrotron (Hamburg).

Download or read book Charged multiplicity distributions and correlations in e+e- [ee] annihilation at PETRA energies written by Deutsches Elektronen-Synchrotron (Hamburg). and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Physics Briefs

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ISBN 13 :
Total Pages : 864 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Physics Briefs by :

Download or read book Physics Briefs written by and published by . This book was released on 1992 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Measurement of Charged Particle Multiplicity Distributions in DIS at HERA and Its Implication to Entanglement Entropy of Partons

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Total Pages : 0 pages
Book Rating : 4.:/5 (126 download)

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Book Synopsis Measurement of Charged Particle Multiplicity Distributions in DIS at HERA and Its Implication to Entanglement Entropy of Partons by :

Download or read book Measurement of Charged Particle Multiplicity Distributions in DIS at HERA and Its Implication to Entanglement Entropy of Partons written by and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Multiplicity Distributions in {bar P}p Interactions at √s

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ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (16 download)

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Book Synopsis Multiplicity Distributions in {bar P}p Interactions at √s by :

Download or read book Multiplicity Distributions in {bar P}p Interactions at √s written by and published by . This book was released on 1993 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preliminary results on multiplicity distributions at √s = 1800 GeV in the? intervals {vert_bar}? {vert_bar} ≤ 2.5, 2.0, 1.5, 1.0, 0.5 are presented. The data were collected with a minimum bias trigger by the Collider Detector at Fermilab in two different runs. A small sample of data at √s = 630 GeV was used for comparison with lower energy results and for checking on systematic effects. The multiplicity distributions at √s = 1800 GeV deviate from the negative binomial distribution in rapidity intervals larger than {vert_bar}? {vert_bar} ≥ 0.5. This confirms the trend already observed at √s = 900 GeV where the deviation from the negative binomial starts at {vert_bar}? {vert_bar}> 2.5.

Negative Binomial Fits to Multiplicity Distributions from Central Collisions of Sup 16O + Cu at 14.6A GeV

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Book Synopsis Negative Binomial Fits to Multiplicity Distributions from Central Collisions of Sup 16O + Cu at 14.6A GeV by :

Download or read book Negative Binomial Fits to Multiplicity Distributions from Central Collisions of Sup 16O + Cu at 14.6A GeV written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Multiplicity Distributions in [bar P]p Interactions at [radical]

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Book Synopsis Multiplicity Distributions in [bar P]p Interactions at [radical] by :

Download or read book Multiplicity Distributions in [bar P]p Interactions at [radical] written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Preliminary results on multiplicity distributions at [radical]s = 1800 GeV in the [eta] intervals [vert-bar] [eta] [vert-bar] [le] 2.5, 2.0, 1.5, 1.0, 0.5 are presented. The data were collected with a minimum bias trigger by the Collider Detector at Fermilab in two different runs. A small sample of data at [radical]s = 630 GeV was used for comparison with lower energy results and for checking on systematic effects. The multiplicity distributions at [radical]s = 1800 GeV deviate from the negative binomial distribution in rapidity intervals larger than [vert-bar] [eta] [vert-bar] [ge] 0.5. This confirms the trend already observed at [radical]s = 900 GeV where the deviation from the negative binomial starts at [vert-bar] [eta] [vert-bar]> 2.5.