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Measurement of strong coupling constant using diferent QCD models
Abstract – We have studied hadronic events from e+e– annihilation data at different centre-of-mass energies .The operation of the AMY collaboration offers a unique opportunity to test QCD by considering different ...
بر رسی تشدید p0 در برهمکنش های e+ e- در ا نرژی مرکز جرم60
بررسی تشدید در برهمکنش های الکترون پوزیترون....
Final state boundary condition of quantum black holes at LHC
Final state boundary condition of a system constructed with interacting Dirac field and scalar field near the event horizon of a Schwarzchild metric is analyzed.Also the transformation from the collapsing matter to the ...
The stability of mesons near event horizon of black hole
In this paper we assert that mesons remain stable near the black hole. Because there is not any effect of quarks inside the black hole on density matrix of individual quarks within the mesons. Next we calculate the total ...
measurement of strong coupling constant from transverse momentum
Data from e+e– annihilation into hadrons at the center of mass energy of 60 GeV are used to study the distribution of momentum components with respect to the jet axis. At high energies, the gluon emission which leads to ...
تفاوت بین جت های کوارک و گلوئون در فرآیند نابودی الکترون-پوزیترون
چکیده
در بررسی فرآیند نابودی الکترون پوزیترون و تولید هادرون ها در انرژی های ه جز رویدادهای دو جتی نشانه هایی از رویدادهای سه جتی نیز مشاهده می شود که بر طبق مطالعات QCD به عنوان تابش یک گلوئون ساطع شده از کوارک ...
momentum spectra of identified hadrons at electron - positron annihilations and compared to QCD calculations
Charged particle momentum distributions are studied and the distributions are compared with the QCD models. And finally the coupling constant is calculated.
تصحیحات NNLO برای باریکه های سه جتی در برهمکنش الکترون - پوزیترون
محاسبات تصحیح NNLO برای سطح مقطع سه جتی در نابودی الکترون پوزیترون مورد مطالعه قرار می گیرد.
Information Ioss for QCD Matter in Mini Black Holes at LHC
In this paper we find information loss in mini black holes at LHC by extending the horowitz and Maldecena mechanism to gluons and calculate the information transformation from the collapsing matter to the state of outgoing ...