Multiplicity distribution of charged particles in e+ e– annihilation in 54-57 GeV centre of mass energy and KNO scaling
In this paper, we investigate the multiplicity of charged particles in e+ e– annihilation by using different models. To achieve this we first fit the multiplicity distribution of charged particles in the energy range of 54-57 GeV by using both the Poisson distribution and KNO scaling, then we compar...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Isfahan University of Technology
2009-09-01
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| Series: | Iranian Journal of Physics Research |
| Subjects: | |
| Online Access: | http://ijpr.iut.ac.ir/browse.php?a_code=A-10-1-416&slc_lang=en&sid=1 |
| _version_ | 1811220369764253696 |
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| author | A Ghasempoor Nashli A Sepehri T Gaffary ME Zomorrodian |
| author_facet | A Ghasempoor Nashli A Sepehri T Gaffary ME Zomorrodian |
| author_sort | A Ghasempoor Nashli |
| collection | DOAJ |
| description | In this paper, we investigate the multiplicity of charged particles in e+ e– annihilation by using different models. To achieve this we first fit the multiplicity distribution of charged particles in the energy range of 54-57 GeV by using both the Poisson distribution and KNO scaling, then we compare these results with multiplicity distribution at the lower energies. This comparison shows that our results are more compatible with KNO scaling in this energy range. Also we fit the multiplicity distribution of our data, together with the other data up to 206 GeV, to Fermi model, the pp data model and the model obtained from perturbative QCD. The coefficients obtained by these methods are consistent with those obtained at lower energies. |
| first_indexed | 2024-04-12T07:41:42Z |
| format | Article |
| id | doaj.art-f479b57736a04ce79bf4820d71258605 |
| institution | Directory Open Access Journal |
| issn | 1682-6957 |
| language | English |
| last_indexed | 2024-04-12T07:41:42Z |
| publishDate | 2009-09-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Iranian Journal of Physics Research |
| spelling | doaj.art-f479b57736a04ce79bf4820d712586052022-12-22T03:41:49ZengIsfahan University of TechnologyIranian Journal of Physics Research1682-69572009-09-0192203207Multiplicity distribution of charged particles in e+ e– annihilation in 54-57 GeV centre of mass energy and KNO scalingA Ghasempoor NashliA SepehriT GaffaryME ZomorrodianIn this paper, we investigate the multiplicity of charged particles in e+ e– annihilation by using different models. To achieve this we first fit the multiplicity distribution of charged particles in the energy range of 54-57 GeV by using both the Poisson distribution and KNO scaling, then we compare these results with multiplicity distribution at the lower energies. This comparison shows that our results are more compatible with KNO scaling in this energy range. Also we fit the multiplicity distribution of our data, together with the other data up to 206 GeV, to Fermi model, the pp data model and the model obtained from perturbative QCD. The coefficients obtained by these methods are consistent with those obtained at lower energies.http://ijpr.iut.ac.ir/browse.php?a_code=A-10-1-416&slc_lang=en&sid=1e+ e– annihilationsmultiplicityKNO scalingFermi model |
| spellingShingle | A Ghasempoor Nashli A Sepehri T Gaffary ME Zomorrodian Multiplicity distribution of charged particles in e+ e– annihilation in 54-57 GeV centre of mass energy and KNO scaling Iranian Journal of Physics Research e+ e– annihilations multiplicity KNO scaling Fermi model |
| title | Multiplicity distribution of charged particles in e+ e– annihilation in 54-57 GeV centre of mass energy and KNO scaling |
| title_full | Multiplicity distribution of charged particles in e+ e– annihilation in 54-57 GeV centre of mass energy and KNO scaling |
| title_fullStr | Multiplicity distribution of charged particles in e+ e– annihilation in 54-57 GeV centre of mass energy and KNO scaling |
| title_full_unstemmed | Multiplicity distribution of charged particles in e+ e– annihilation in 54-57 GeV centre of mass energy and KNO scaling |
| title_short | Multiplicity distribution of charged particles in e+ e– annihilation in 54-57 GeV centre of mass energy and KNO scaling |
| title_sort | multiplicity distribution of charged particles in e e annihilation in 54 57 gev centre of mass energy and kno scaling |
| topic | e+ e– annihilations multiplicity KNO scaling Fermi model |
| url | http://ijpr.iut.ac.ir/browse.php?a_code=A-10-1-416&slc_lang=en&sid=1 |
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