在\(\sqrt{s}=\) 2.76、7和13 TeV的pp碰撞中产生多粒子的不确定性分析

IF 2.8 3区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

The European Physical Journal Plus Pub Date : 2025-05-14 DOI:10.1140/epjp/s13360-025-06327-8

Tumpa Biswas, Dibakar Dhar, Sanjib Kumar Manna, Dipak Ghosh, Prabir Kumar Haldar

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引用次数: 0

摘要

利用Monte-Carlo事件发生器PYTHIA 8.3研究了\(\sqrt s = 2.76,7\;\& \;13\) TeV下pp碰撞中多粒子产生的不规律行为。熵指数是在不确定性方法的框架内确定的。已经观察到熵指数的增加，可能是由PYTHIA中模拟的各种内部物理机制引起的，例如多部分子相互作用、颜色重连和统计波动也可能导致这种效应。在pythia生成的数据中观察到\(\tilde{\mu _{q}}\)值的增加表明多粒子产生表现出混沌行为。此外，当包括CERN SPS能量在内的所有测量加在一起时，它们共同强有力地表明QCD分支过程是混沌的。

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Erraticity analysis of multiparticle production in pp collisions at \(\sqrt{s}=\) 2.76, 7 & 13 TeV

The erraticity behavior of multiparticle production is investigated in pp collisions at \(\sqrt s = 2.76,7\;\& \;13\) TeV using the Monte-Carlo event generator PYTHIA 8.3. The entropy indices are determined in the framework of the erraticity approach. An increase in the entropy index has been observed, potentially arising from various internal physics mechanisms modeled in PYTHIA, such as multiple parton interactions, color reconnection and statistical fluctuations may also contribute to this effect. The increasing value of \(\tilde{\mu _{q}}\) observed in PYTHIA-generated data suggests that the multiparticle production exhibits chaotic behavior. Furthermore, when all the measures are taken together including CERN SPS energies, they collectively give a strong indication that the QCD branching process is chaotic.

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来源期刊

The European Physical Journal Plus PHYSICS, MULTIDISCIPLINARY-

CiteScore

5.40

自引率

8.80%

发文量

1150

审稿时长

4-8 weeks

期刊介绍： The aims of this peer-reviewed online journal are to distribute and archive all relevant material required to document, assess, validate and reconstruct in detail the body of knowledge in the physical and related sciences. The scope of EPJ Plus encompasses a broad landscape of fields and disciplines in the physical and related sciences - such as covered by the topical EPJ journals and with the explicit addition of geophysics, astrophysics, general relativity and cosmology, mathematical and quantum physics, classical and fluid mechanics, accelerator and medical physics, as well as physics techniques applied to any other topics, including energy, environment and cultural heritage.