Measurement of the splitting function in pp and Pb-Pb collisions at sNN =5.02 TeV
Data from heavy ion collisions suggest that the evolution of a parton shower is modified by interactions with the color charges in the dense partonic medium created in these collisions, but it is not known where in the shower evolution the modifications occur. The momentum ratio of the two leading p...
محفوظ في:
| المؤلفون الرئيسيون: | , , , , , |
|---|---|
| التنسيق: | مقال |
| اللغة: | English English English |
| منشور في: |
American Physical Society
2018
|
| الموضوعات: | |
| الوصول للمادة أونلاين: | http://irep.iium.edu.my/64863/1/64863_Measurement%20of%20the%20Splitting%20Function%20in%20pp_article.pdf http://irep.iium.edu.my/64863/2/64863_Measurement%20of%20the%20Splitting%20Function%20in%20pp_scopus.pdf http://irep.iium.edu.my/64863/13/64863_Measurement%20of%20the%20splitting%20function%20in%20pp%20and%20Pb-Pb%20collisions%20at%20sNN_WoS.pdf http://irep.iium.edu.my/64863/ https://journals.aps.org/prl/pdf/10.1103/PhysRevLett.120.142302 |
| الوسوم: |
إضافة وسم
لا توجد وسوم, كن أول من يضع وسما على هذه التسجيلة!
|
| الملخص: | Data from heavy ion collisions suggest that the evolution of a parton shower is modified by interactions with the color charges in the dense partonic medium created in these collisions, but it is not known where in the shower evolution the modifications occur. The momentum ratio of the two leading partons, resolved as subjets, provides information about the parton shower evolution. This substructure observable, known as the splitting function, reflects the process of a parton splitting into two other partons and has been measured for jets with transverse momentum between 140 and 500 GeV, in pp and PbPb collisions at a center-of-mass energy of 5.02 TeV per nucleon pair. In central PbPb collisions, the splitting function indicates a more unbalanced momentum ratio, compared to peripheral PbPb and pp collisions.. The measurements are compared to various predictions from event generators and analytical calculations. |
|---|