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arXiv 1610.04410hep-ph
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加速宇宙中QCD物质、希格斯玻色子、中微子和暗能量产生截面的比较

Comparing Production Cross Sections for QCD Matter, Higgs Boson, Neutrino with Dark Energy in Accelerating Universe

Tooraj Ghaffary

摘要:

本文计算了宇宙加速过程中QCD物质、中微子和暗能量的产生截面。为了获得这些截面,宇宙产生截面乘以加速宇宙中的粒子或暗能量分布。还计算了由于形成事件视界而导致的每种物质和暗能量的丢失截面。很明显,在宇宙的事件视界附近产生的粒子的截面随着宇宙的加速而增大。这是因为随着宇宙加速度的增大,安鲁温度也随之增大,粒子的热辐射也随之增强。在加速的宇宙中,有不同的通道产生希格斯玻色子。宇宙可能衰变为夸克和胶子,然后这些粒子相互作用,产生希格斯玻色子。另外,还有一些希格斯玻色子是直接从宇宙的事件视界发射出来的。通过不同通道比较希格斯玻色子截面,发现在较低加速度下,a_Universe<2.5 a_(早期宇宙),宇宙将不能发射Higgs,但仍能产生夸克,最终对于a_Universe<1.5 a_(早期宇宙),宇宙只能发射无质量胶子。随着LHC上宇宙加速度的增加,a_Universe>2.5 a_(早期宇宙),大部分希格斯玻色子玻色子的产生将归因于宇宙事件视界附近的Unruh效应。最后将暗能量的产生截面与粒子截面进行了比较,发现暗能量的产生截面主要由QCD物质、希格斯玻色子玻色子和中微子组成。这一结果与先前对暗能量截面的预测一致。

英文摘要:

In this research, the production cross sections for QCD matter, neutrino and dark energy due to acceleration of Universe is calculated. To obtain these cross sections, the Universe production cross section is multiplied by the particle or dark energy distribution in accelerating Universe. Also missing cross section for each matter and dark energy due to formation of event horizon, is calculated. It is clear that the cross section of particles produced near event horizon of Universe is much larger for higher acceleration of Universe. This is because as the acceleration of Universe becomes larger, the Unruh temperature becomes larger and the thermal radiations of particles are enhanced. There are different channels for producing Higgs boson in accelerating Universe. Universe maybe decay to quark and gluons, and then these particles interact with each other and Higgs boson is produced. Also, some Higgs boson are emitted directly from event horizon of Universe. Comparing Higgs boson cross sections via different channels, it is observed that at lower acceleration, a_Universe<2.5 a_(early Universe), the Universe will not be able to emit Higgs, but is still able to produce a quark and eventually for a_Universe<1.5 a_(early Universe) the Universe can only emit massless gluons. As the acceleration of Universe at the LHC increases, a_Universe>2.5 a_(early Universe), most of Higgs boson production will be due to Unruh effect near event horizon of Universe. Finally comparing the production cross section for dark energy with particle cross sections, it is found that the cross section for dark energy is dominated by QCD matter, Higgs boson and neutrino. This result is consistent with previous predictions for dark energy cross section.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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