The early universe consists of element particles such as quarks and gluons after the big bang. Understanding their interactions is crucial for the physics, especially their interaction strength: do they behave like a gas or like water? A lot of experiments and theoretical calculations have been performed in labs, using different particles to study the properties of the early universe. Luckily, scientists can create this state of matter on earth by proton-proton collisions (or nucleus-nucleus collisions). As this matter produced in the particle collisions last only a very short of time ~ fm/c where c is the speed of light. How to probe this medium becomes difficult? This work suggests that people can study the momentum correlations between particles moving in the opposite direction in the hot medium. If the early universe is a STRONGLY coupled medium, then the medium will change both particles’ momentum. After they move out of the hot medium, their momentum angular is NOT pi anymore. In summary, the hot medium random interactions will change the momentum angular between two particles even their initial momentum is in the opposite direction. This work employs the Langevin equation to simulate their evolutions in the hot medium, and get good results.
| Published in | American Journal of Physics and Applications (Volume 6, Issue 6) |
| DOI | 10.11648/j.ajpa.20180606.11 |
| Page(s) | 142-146 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2018. Published by Science Publishing Group |
Early Universe, Langevin Equation, Momentum Angular Correlations, Particle Collisions
| [1] | M. Gell-Mann, Phys. Lett. 8, 214 (1964). |
| [2] | A. Bazavov et al., Phys. Rev. D 85, 054503 (2012). |
| [3] | F. Antinori et al. [NA57 Collaboration], J. Phys. G 37, 045105 (2010). |
| [4] | A. Adare et al. [PHENIX Collaboration], Phys. Rev. Lett. 98, 162301 (2007). |
| [5] | Z. w. Lin and C. M. Ko, Phys. Rev. C 65, 034904 (2002). |
| [6] | J. Adams et al. [STAR Collaboration], Phys. Rev. Lett. 91, 072304 (2003). |
| [7] | K. Adcox et al. [PHENIX Collaboration], Phys. Rev. Lett. 88, 022301 (2002). |
| [8] | T. Matsui and H. Satz, Phys. Lett. B 178, 416 (1986). |
| [9] | H. Satz, J. Phys. G 32, R25 (2006). |
| [10] | S. S. Adler et al. [PHENIX Collaboration], Phys. Rev. Lett. 94, 082301 (2005). |
| [11] | J. Zhao and B. Chen, Phys. Lett. B 776, 17 (2018). |
| [12] | H. W. Crater, J. H. Yoon and C. Y. Wong, Phys. Rev. D 79, 034011 (2009). |
| [13] | X. Guo, S. Shi and P. Zhuang, Phys. Lett. B 718, 143 (2012). |
| [14] | C. Gerschel and J. Hufner, Phys. Lett. B 207, 253 (1988). |
| [15] | J. W. Cronin, H. J. Frisch, M. J. Shochet, J. P. Boymond, R. Mermod, P. A. Piroue and R. L. Sumner, Phys. Rev. D 11, 3105 (1975). |
| [16] | A. H. Mueller and J. w. Qiu, Nucl. Phys. B 268, 427 (1986). |
| [17] | F. H. Liu, H. L. Lao and R. A. Lacey, Int. J. Mod. Phys. E 25, no. 06, 1650036 (2016). |
| [18] | A. Andronic et al., Eur. Phys. J. C 76, no. 3, 107 (2016). |
| [19] | B. Chen, T. Guo, Y. Liu and P. Zhuang, Phys. Lett. B 765, 323 (2017). |
| [20] | V. Khachatryan et al. [CMS Collaboration], JHEP 1009, 091 (2010). |
| [21] | V. Khachatryan et al. [CMS Collaboration], Phys. Rev. Lett. 116, no. 17, 172302 (2016). |
| [22] | C. Lourenco and H. K. Wohri, Phys. Rept. 433, 127 (2006). |
| [23] | X. Zhu, N. Xu and P. Zhuang, Phys. Rev. Lett. 100, 152301 (2008). |
| [24] | X. Zhu, M. Bleicher, S. L. Huang, K. Schweda, H. Stoecker, N. Xu and P. Zhuang, Phys. Lett. B 647,366(2007). |
| [25] | M. He, R. J. Fries and R. Rapp, Phys. Rev. C 86, 014903 (2012). |
| [26] | B. Chen, Phys. Rev. C 95, no. 3, 034908 (2017). |
| [27] | S. Cao, G. Y. Qin and S. A. Bass, Phys. Rev. C 88, 044907 (2013). |
| [28] | B. Chen and J. Zhao, Phys. Lett. B 772, 819 (2017). |
| [29] | S. Cao, G. Y. Qin and S. A. Bass, J. Phys. G 40, 085103 (2013). |
| [30] | P. B. Gossiaux and J. Aichelin, Nucl. Phys. A 830, 203C (2009). |
| [31] | H. van Hees, M. Mannarelli, V. Greco and R. Rapp, Phys. Rev. Lett. 100, 192301 (2008). |
| [32] | H. T. Ding, A. Francis, O. Kaczmarek, F. Karsch, H. Satz and W. Soeldner, Phys. Rev. D 86, 014509(2012). |
| [33] | X. N. Wang and M. Gyulassy, Phys. Rev. Lett. 68, 1480 (1992). |
| [34] | R. Baier, Y. L. Dokshitzer, A. H. Mueller, S. Peigne and D. Schiff, Nucl. Phys. B 483, 291 (1997). |
| [35] | G. Y. Qin, J. Ruppert, C. Gale, S. Jeon, G. D. Moore and M. G. Mustafa, Phys. Rev. Lett. 100,072301 (2008). |
| [36] | H. Song, S. A. Bass, U. Heinz, T. Hirano and C. Shen, Phys. Rev. Lett. 106, 192301 (2011). |
| [37] | T. Hirano, P. Huovinen and Y. Nara, Phys. Rev. C 83, 021902 (2011). |
| [38] | W. Zhao, Y. Zhou, H. Xu, W. Deng and H. Song, Phys. Lett. B 780, 495 (2018). |
| [39] | D. Molnar and S. A. Voloshin, Phys. Rev. Lett. 91, 092301 (2003). |
| [40] | R. C. Hwa and C. B. Yang, Phys. Rev. C 67, 034902 (2003). |
| [41] | R. J. Fries, B. Muller, C. Nonaka and S. A. Bass, Phys. Rev. Lett. 90, 202303 (2003). |
| [42] | V. Greco, C. M. Ko and P. Levai, Phys. Rev. Lett. 90, 202302 (2003). |
| [43] | V. Greco, C. M. Ko and R. Rapp, Phys. Lett. B 595, 202 (2004). |
| [44] | T. Song, H. Berrehrah, D. Cabrera, W. Cassing and E. Bratkovskaya, Phys. Rev. C 93, no. 3, 034906(2016). |
| [45] | C. Peterson, D. Schlatter, I. Schmitt and P. M. Zerwas, Phys. Rev. D 27, 105 (1983). |
APA Style
Zirui Wang, Yuhuan Li. (2018). Angular Correlations of Particle Momentum in the Hot Dense Medium. American Journal of Physics and Applications, 6(6), 142-146. https://doi.org/10.11648/j.ajpa.20180606.11
ACS Style
Zirui Wang; Yuhuan Li. Angular Correlations of Particle Momentum in the Hot Dense Medium. Am. J. Phys. Appl. 2018, 6(6), 142-146. doi: 10.11648/j.ajpa.20180606.11
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Download@article{10.11648/j.ajpa.20180606.11,
author = {Zirui Wang and Yuhuan Li},
title = {Angular Correlations of Particle Momentum in the Hot Dense Medium},
journal = {American Journal of Physics and Applications},
volume = {6},
number = {6},
pages = {142-146},
doi = {10.11648/j.ajpa.20180606.11},
url = {https://doi.org/10.11648/j.ajpa.20180606.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajpa.20180606.11},
abstract = {The early universe consists of element particles such as quarks and gluons after the big bang. Understanding their interactions is crucial for the physics, especially their interaction strength: do they behave like a gas or like water? A lot of experiments and theoretical calculations have been performed in labs, using different particles to study the properties of the early universe. Luckily, scientists can create this state of matter on earth by proton-proton collisions (or nucleus-nucleus collisions). As this matter produced in the particle collisions last only a very short of time ~ fm/c where c is the speed of light. How to probe this medium becomes difficult? This work suggests that people can study the momentum correlations between particles moving in the opposite direction in the hot medium. If the early universe is a STRONGLY coupled medium, then the medium will change both particles’ momentum. After they move out of the hot medium, their momentum angular is NOT pi anymore. In summary, the hot medium random interactions will change the momentum angular between two particles even their initial momentum is in the opposite direction. This work employs the Langevin equation to simulate their evolutions in the hot medium, and get good results.},
year = {2018}
}
TY - JOUR T1 - Angular Correlations of Particle Momentum in the Hot Dense Medium AU - Zirui Wang AU - Yuhuan Li Y1 - 2018/12/21 PY - 2018 N1 - https://doi.org/10.11648/j.ajpa.20180606.11 DO - 10.11648/j.ajpa.20180606.11 T2 - American Journal of Physics and Applications JF - American Journal of Physics and Applications JO - American Journal of Physics and Applications SP - 142 EP - 146 PB - Science Publishing Group SN - 2330-4308 UR - https://doi.org/10.11648/j.ajpa.20180606.11 AB - The early universe consists of element particles such as quarks and gluons after the big bang. Understanding their interactions is crucial for the physics, especially their interaction strength: do they behave like a gas or like water? A lot of experiments and theoretical calculations have been performed in labs, using different particles to study the properties of the early universe. Luckily, scientists can create this state of matter on earth by proton-proton collisions (or nucleus-nucleus collisions). As this matter produced in the particle collisions last only a very short of time ~ fm/c where c is the speed of light. How to probe this medium becomes difficult? This work suggests that people can study the momentum correlations between particles moving in the opposite direction in the hot medium. If the early universe is a STRONGLY coupled medium, then the medium will change both particles’ momentum. After they move out of the hot medium, their momentum angular is NOT pi anymore. In summary, the hot medium random interactions will change the momentum angular between two particles even their initial momentum is in the opposite direction. This work employs the Langevin equation to simulate their evolutions in the hot medium, and get good results. VL - 6 IS - 6 ER -
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