کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5493848 | 1526771 | 2016 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Jet Hadronization via Recombination of Parton Showers in Vacuum and in Medium
ترجمه فارسی عنوان
از بین بردن جت از طریق رونک سازی بخارات پارتون در خلا و متوسط
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کلمات کلیدی
کرومودینامیک کوانتومی، کوارک گلوون پلاسما، هادرونیزه کردن،
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
چکیده انگلیسی
We have studied the hadronization of jet parton showers based on the quark recombination model. This is achieved by letting gluons at the end of the perturbative shower evolution undergo a non-perturbative splitting into quark and antiquark pairs, then applying a Monte-Carlo version of instantaneous quark recombination, and finally subjecting remnant quarks (those which have not found a recombination partner) to Lund string fragmentation. When applied to parton showers from the PYTHIA Monte Carlo generator, the final hadron spectra from our calculation compare quite well to PYTHIA jets that have been hadronized with the default Lund string fragmentation. Modeling the quark gluon plasma produced in heavy ion collisions by a blast wave model, we have further studied medium effects on the hadronization of jet shower partons by also including their recombination with the thermal partons from the quark gluon plasma. We find that the latter leads to a significant enhancement of intermediate transverse momentum pions and protons at both RHIC and LHC. Our results thus suggest that medium modification of jet fragmentation provides a plausible explanation for the enhanced production of intermediate transverse momentum hadrons observed in experiments.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear and Particle Physics Proceedings - Volumes 276â278, JulyâSeptember 2016, Pages 297-300
Journal: Nuclear and Particle Physics Proceedings - Volumes 276â278, JulyâSeptember 2016, Pages 297-300
نویسندگان
Rainer J. Fries, Kyongchol Han, Che Ming Ko,