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Effects of color reconnection on hadron flavor observables

Bierlich, Christian LU and Christiansen, Jesper Roy LU (2015) In Physical Review D (Particles, Fields, Gravitation and Cosmology) 92(9).
Abstract
We present a series of observables for soft inclusive physics, and utilize them for comparison between two recently developed color reconnection models: the new color reconnection model in Pythia and the DIPSY rope hadronization model. The observables are ratios of identified hadron yields as a function of the final-state activity, as measured by the charged multiplicity. Since both considered models have a nontrivial dependence on the final-state activity, the above observables serve as excellent probes to test the effect of these models. Both models show a clear baryon enhancement with increasing multiplicity, while only the DIPSY rope model leads to a strangeness enhancement. Flowlike patterns, previously found to be connected to color... (More)
We present a series of observables for soft inclusive physics, and utilize them for comparison between two recently developed color reconnection models: the new color reconnection model in Pythia and the DIPSY rope hadronization model. The observables are ratios of identified hadron yields as a function of the final-state activity, as measured by the charged multiplicity. Since both considered models have a nontrivial dependence on the final-state activity, the above observables serve as excellent probes to test the effect of these models. Both models show a clear baryon enhancement with increasing multiplicity, while only the DIPSY rope model leads to a strangeness enhancement. Flowlike patterns, previously found to be connected to color reconnection models, are investigated for the new models. Only Pythia shows a p(perpendicular to)-dependent enhancement of the Lambda/K ratio as the final-state activity increases, with the enhancement being largest in the mid-p(perpendicular to) region. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review D (Particles, Fields, Gravitation and Cosmology)
volume
92
issue
9
publisher
American Physical Society
external identifiers
  • wos:000364160700004
  • scopus:84947104565
ISSN
1550-2368
DOI
10.1103/PhysRevD.92.094010
language
English
LU publication?
yes
id
4c771fff-bd97-42ea-a6fd-f612271110b2 (old id 8380449)
date added to LUP
2015-12-18 13:49:39
date last changed
2017-09-03 03:08:59
@article{4c771fff-bd97-42ea-a6fd-f612271110b2,
  abstract     = {We present a series of observables for soft inclusive physics, and utilize them for comparison between two recently developed color reconnection models: the new color reconnection model in Pythia and the DIPSY rope hadronization model. The observables are ratios of identified hadron yields as a function of the final-state activity, as measured by the charged multiplicity. Since both considered models have a nontrivial dependence on the final-state activity, the above observables serve as excellent probes to test the effect of these models. Both models show a clear baryon enhancement with increasing multiplicity, while only the DIPSY rope model leads to a strangeness enhancement. Flowlike patterns, previously found to be connected to color reconnection models, are investigated for the new models. Only Pythia shows a p(perpendicular to)-dependent enhancement of the Lambda/K ratio as the final-state activity increases, with the enhancement being largest in the mid-p(perpendicular to) region.},
  articleno    = {094010},
  author       = {Bierlich, Christian and Christiansen, Jesper Roy},
  issn         = {1550-2368},
  language     = {eng},
  number       = {9},
  publisher    = {American Physical Society},
  series       = {Physical Review D (Particles, Fields, Gravitation and Cosmology)},
  title        = {Effects of color reconnection on hadron flavor observables},
  url          = {http://dx.doi.org/10.1103/PhysRevD.92.094010},
  volume       = {92},
  year         = {2015},
}