| | |
| | |
Stat |
Members: 3645 Articles: 2'504'928 Articles rated: 2609
26 April 2024 |
|
| | | |
|
Article overview
| |
|
Systematic study for particle transverse momentum asymmetry in minimum bias pp collisions at LHC energies | Yu-Liang Yan
; Dai-Mei Zhou
; Ayut Limphirat
; Bao-Guo Dong
; Yu-Peng Yan
; Ben-Hao Sa
; | Date: |
17 Oct 2012 | Abstract: | In PYTHIA6 (PYTHIA8) once the transverse momentum $p_T$ of a generated
particle is randomly sampled, $p_x$ and $p_y$ are set on the circle with radius
of $p_T$ randomly. This may largely suppress the development of the final
hadronic state transverse momentum anisotropy from the initial state spatial
asymmetry. We modify PYTHIA6.4 by randomly setting $p_x$ and $p_y$ on the
circumference of an ellipse with the half major and minor axes being
$p_T(1+delta_p)$ and $p_T(1-delta_p)$, respectively. The modified PYTHIA6.4
is then employed to systematically study the charged particle transverse
momentum asymmetry in the minimum bias pp collisions at $sqrt s$=0.9, 7, and
14 TeV. The ALICE data on the transverse sphericity as a function of charged
multiplicity, $<S_T>(N_{ch})$, are well reproduced with the modified PYTHIA6.4.
It is found that the predicted charged particle $v_2$ upper limit is a
measurable value, $sim 0.12$, in the minimum bias pp collisions at $sqrt s$=7
TeV. We suggest a systematic measurement for the particle transverse momentum
sphericity, eccentricity (ellipticity), and elliptic flow parameter. | Source: | arXiv, 1210.4608 | Services: | Forum | Review | PDF | Favorites |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
| News, job offers and information for researchers and scientists:
| |