### Strangeness enhancement and flow-like effects in $e^+ e^-$ annihilation at high parton density

Castorina P, Lanteri D, Satz H (2021)
The European Physical Journal A 57(3): 111.

Zeitschriftenaufsatz | Veröffentlicht | Englisch

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Autor*in
Castorina, P.; Lanteri, D.; Satz, HelmutUniBi
Abstract / Bemerkung
Strangeness enhancement and collective flow are considered signatures of the quark gluon plasma formation. These phenomena have been detected not only in relativistic heavy ion collisions but also in high energy, high multiplicity events of proton-proton and proton-nucleus ("small systems") scatterings. Indeed, a universal behavior emerges by considering the parton density in the transverse plane as the dynamical quantity to specify the initial condition of the collisions. On the other hand, e+e- annihilation data at LEP and lower energies indicate that there is no strangeness enhancement and no flow-like effect. We show that the parton density in the transverse plane generated in e+e- annihilation at the available energy is too low to expect such effects. The event-by-event multiplicity where strangeness suppression and flow-like phenomenon could show up in e+e- is evaluated.
Erscheinungsjahr
2021
Zeitschriftentitel
The European Physical Journal A
Band
57
Ausgabe
3
Art.-Nr.
111
ISSN
1434-6001
eISSN
1434-601X
Page URI
https://pub.uni-bielefeld.de/record/2950028

### Zitieren

Castorina P, Lanteri D, Satz H. Strangeness enhancement and flow-like effects in $e^+ e^-$ annihilation at high parton density. The European Physical Journal A. 2021;57(3): 111.
Castorina, P., Lanteri, D., & Satz, H. (2021). Strangeness enhancement and flow-like effects in $e^+ e^-$ annihilation at high parton density. The European Physical Journal A, 57(3), 111. https://doi.org/10.1140/epja/s10050-021-00393-z
Castorina, P., Lanteri, D., and Satz, H. (2021). Strangeness enhancement and flow-like effects in $e^+ e^-$ annihilation at high parton density. The European Physical Journal A 57:111.
Castorina, P., Lanteri, D., & Satz, H., 2021. Strangeness enhancement and flow-like effects in $e^+ e^-$ annihilation at high parton density. The European Physical Journal A, 57(3): 111.
P. Castorina, D. Lanteri, and H. Satz, “Strangeness enhancement and flow-like effects in $e^+ e^-$ annihilation at high parton density”, The European Physical Journal A, vol. 57, 2021, : 111.
Castorina, P., Lanteri, D., Satz, H.: Strangeness enhancement and flow-like effects in $e^+ e^-$ annihilation at high parton density. The European Physical Journal A. 57, : 111 (2021).
Castorina, P., Lanteri, D., and Satz, Helmut. “Strangeness enhancement and flow-like effects in $e^+ e^-$ annihilation at high parton density”. The European Physical Journal A 57.3 (2021): 111.

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### Quellen

arXiv: 2011.06966

Inspire: 1830207