Evidence of azimuthal void probability scaling in relativistic and ultra relativistic nuclear interactions

Ghosh, Dipak; Deb, Argha; Bhattacharyya, Swarnapratim; Das, Ranjana; Ghosh, Jayita; Lahiri, Madhumita

doi:10.1088/0031-8949/75/3/004

Phys. Scr.

2007

DOI: 10.1088/0031-8949/75/3/004

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Evidence of azimuthal void probability scaling in relativistic and ultra relativistic nuclear interactions

Dipak Ghosh¹,

Argha Deb²,

Swarnapratim Bhattacharyya³

et al.

Abstract: A study of azimuthal angle void probability of produced pions has been carried out in relativistic and ultra relativistic nucleus-nucleus interactions ( 32 S-AgBr interactions at 200 A GeV, 16 O-AgBr interactions at 60 A GeV, 24 Mg-AgBr interactions at 4.5 A GeV and 12 C-AgBr interactions at 4.5 A GeV). The study reveals a very interesting observation-void probability showing scaling behaviour at significantly lower energy ( 24 Mg-AgBr interactions at 4.5 A GeV and 12 C-AgBr interactions at 4.5 A GeV

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2012

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VOID PROBABILITY ENHANCED MULTIPLICITY DISTRIBUTION OF PRODUCED HADRONS IN p–p COLLISION AT LHC ENERGIES

Dutta¹,

Chan

2012

Mod. Phys. Lett. A

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This paper studies the multiplicity distribution of hadrons produced in p–p collisions at 0.9 and 2.36 TeV using ALICE as a detector. The multiplicity distribution exhibits enhanced void probability. They are also found to satisfy the void probability scaling. The scaling of χ with [Formula: see text] is studied using the generalized hypergeometric model. The variation of the parameter "a" of the hyper geometric model with energy and type of events is also studied. The parameter "a" distinguishes between various theoretical models, e.g. Lorentz/Catalan, negative binomial, geometric distribution etc. Finally a comparison is made with the [Formula: see text] collisions at 200, 546 and 900 GeV. It is observed both for p–p and [Formula: see text] data, the value of "a" decreases with increase in collision energy and approach towards the upper bound or the NB model of the void probability scaling.

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VOID PROBABILITY ENHANCED MULTIPLICITY DISTRIBUTION OF PRODUCED HADRONS IN p–p COLLISION AT LHC ENERGIES

Dutta¹,

Chan

2012

Mod. Phys. Lett. A

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Evidence of azimuthal void probability scaling in relativistic and ultra relativistic nuclear interactions

Cited by 1 publication

References 31 publications

VOID PROBABILITY ENHANCED MULTIPLICITY DISTRIBUTION OF PRODUCED HADRONS IN p–p COLLISION AT LHC ENERGIES

VOID PROBABILITY ENHANCED MULTIPLICITY DISTRIBUTION OF PRODUCED HADRONS IN p–p COLLISION AT LHC ENERGIES

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