Статья

Production of pions, kaons, (anti-)protons and $$\phi $$ mesons in Xe–Xe collisions at $$\sqrt{s_{\mathrm{NN}}}$$ = 5.44 TeV

S. AcharyaCERN, 1211 Geneva 23, SwitzerlandD. AdamováNuclear Physics Institute of the Czech Academy of Sciences, Řež u Prahy, Czech RepublicA. AdlerCERN, 1211 Geneva 23, SwitzerlandJonatan AdolfssonCERN, 1211 Geneva 23, SwitzerlandG. Aglieri RinellaCERN, 1211 Geneva 23, SwitzerlandM. AgnelloCERN, 1211 Geneva 23, SwitzerlandN. AgrawalCERN, 1211 Geneva 23, SwitzerlandZ. AhammedCERN, 1211 Geneva 23, SwitzerlandS. AhmadCERN, 1211 Geneva 23, SwitzerlandS. U. AhnCERN, 1211 Geneva 23, SwitzerlandZ. AkbarCERN, 1211 Geneva 23, SwitzerlandA. AkindinovCERN, 1211 Geneva 23, SwitzerlandM. Al-TuranyCERN, 1211 Geneva 23, SwitzerlandD. S. D. AlbuquerqueCERN, 1211 Geneva 23, SwitzerlandD. AleksandrovCERN, 1211 Geneva 23, SwitzerlandB. AlessandroCERN, 1211 Geneva 23, SwitzerlandH. M. AlfandaCERN, 1211 Geneva 23, SwitzerlandR. Alfaro MolinaCERN, 1211 Geneva 23, SwitzerlandB. AliCERN, 1211 Geneva 23, SwitzerlandY. AliCERN, 1211 Geneva 23, SwitzerlandA. AliciCERN, 1211 Geneva 23, SwitzerlandN. AlizadehvandchaliCERN, 1211 Geneva 23, SwitzerlandA. AlkinCERN, 1211 Geneva 23, SwitzerlandJ. AlmeCERN, 1211 Geneva 23, SwitzerlandT. AltCERN, 1211 Geneva 23, SwitzerlandL. AltenkamperCERN, 1211 Geneva 23, SwitzerlandI. AltsybeevCERN, 1211 Geneva 23, SwitzerlandM. N. AnaamCERN, 1211 Geneva 23, SwitzerlandC. AndreiCERN, 1211 Geneva 23, SwitzerlandD. AndreouCERN, 1211 Geneva 23, SwitzerlandA. AndronicCERN, 1211 Geneva 23, SwitzerlandV. AnguelovCERN, 1211 Geneva 23, SwitzerlandT. AntičićRudjer Bošković Institute, Zagreb, CroatiaF. AntinoriCERN, 1211 Geneva 23, SwitzerlandP. AntonioliCERN, 1211 Geneva 23, SwitzerlandC. AnujCERN, 1211 Geneva 23, SwitzerlandN. ApadulaCERN, 1211 Geneva 23, SwitzerlandL. AphecetcheIMT AtlantiqueH. AppelshäuserInstitut für Kernphysik, Johann Wolfgang Goethe-Universität Frankfurt, Frankfurt, GermanyS. ArcelliCERN, 1211 Geneva 23, SwitzerlandR. ArnaldiCERN, 1211 Geneva 23, SwitzerlandM. ArratiaCERN, 1211 Geneva 23, SwitzerlandI. C. ArseneCERN, 1211 Geneva 23, SwitzerlandM. ArslandokCERN, 1211 Geneva 23, SwitzerlandA. AugustinusCERN, 1211 Geneva 23, SwitzerlandR. AverbeckCERN, 1211 Geneva 23, SwitzerlandS. AzizCERN, 1211 Geneva 23, SwitzerlandM. D. AzmiDepartment of Physics, Aligarh Muslim University, Aligarh, IndiaA. BadalàINFN, Sezione di Catania, Catania, ItalyY. W. BaekCERN, 1211 Geneva 23, SwitzerlandX. BaiCERN, 1211 Geneva 23, SwitzerlandR. BailhacheCERN, 1211 Geneva 23, SwitzerlandR. BalaCERN, 1211 Geneva 23, SwitzerlandA. BalbinoCERN, 1211 Geneva 23, SwitzerlandA. BaldisseriCERN, 1211 Geneva 23, SwitzerlandM. BallCERN, 1211 Geneva 23, SwitzerlandD. BanerjeeCERN, 1211 Geneva 23, SwitzerlandR. BarberaCERN, 1211 Geneva 23, SwitzerlandL. BarioglioCERN, 1211 Geneva 23, SwitzerlandM. BarlouCERN, 1211 Geneva 23, SwitzerlandG. G. BarnaföldiWigner Research Centre for Physics, Budapest, HungaryL. S. BarnbyCERN, 1211 Geneva 23, SwitzerlandV. BarretCERN, 1211 Geneva 23, SwitzerlandC. BartelsCERN, 1211 Geneva 23, SwitzerlandK. BarthCERN, 1211 Geneva 23, SwitzerlandE. BartschCERN, 1211 Geneva 23, SwitzerlandF. BaruffaldiCERN, 1211 Geneva 23, SwitzerlandN. BastidCERN, 1211 Geneva 23, SwitzerlandS. BasuCERN, 1211 Geneva 23, SwitzerlandG. BatigneCERN, 1211 Geneva 23, SwitzerlandB. BatyunyaCERN, 1211 Geneva 23, SwitzerlandD. BauriCERN, 1211 Geneva 23, SwitzerlandJ. L. Bazo AlbaCERN, 1211 Geneva 23, SwitzerlandI. G. BeardenCERN, 1211 Geneva 23, SwitzerlandC. BeattieCERN, 1211 Geneva 23, SwitzerlandI. BelikovCERN, 1211 Geneva 23, SwitzerlandA. D. C. Bell HechavarriaCERN, 1211 Geneva 23, SwitzerlandF. BelliniCERN, 1211 Geneva 23, SwitzerlandR. BellwiedCERN, 1211 Geneva 23, SwitzerlandS. BelokurovaCERN, 1211 Geneva 23, SwitzerlandV. BelyaevCERN, 1211 Geneva 23, SwitzerlandG. BencédiCERN, 1211 Geneva 23, SwitzerlandS. BeolèCERN, 1211 Geneva 23, SwitzerlandA. BercuciCERN, 1211 Geneva 23, SwitzerlandY. BerdnikovCERN, 1211 Geneva 23, SwitzerlandA. BerdnikovaCERN, 1211 Geneva 23, SwitzerlandD. BerényiCERN, 1211 Geneva 23, SwitzerlandL. BergmannCERN, 1211 Geneva 23, SwitzerlandM. G. BesoiuCERN, 1211 Geneva 23, SwitzerlandL. BetevCERN, 1211 Geneva 23, SwitzerlandP. P. BhaduriCERN, 1211 Geneva 23, SwitzerlandA. BhasinCERN, 1211 Geneva 23, SwitzerlandI. R. BhatCERN, 1211 Geneva 23, SwitzerlandM. A. BhatCERN, 1211 Geneva 23, SwitzerlandB. BhattacharjeeCERN, 1211 Geneva 23, SwitzerlandP. BhattacharyaCERN, 1211 Geneva 23, SwitzerlandA. BianchiCERN, 1211 Geneva 23, SwitzerlandL. BianchiCERN, 1211 Geneva 23, SwitzerlandN. BianchiCERN, 1211 Geneva 23, SwitzerlandJ. BielčíkFaculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Prague, Czech Republic

2021lv

ABI

Аннотация

Abstract The first measurement of the production of pions, kaons, (anti-)protons and $$\phi $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>ϕ</mml:mi></mml:math> mesons at midrapidity in Xe–Xe collisions at $$\sqrt{s_{\mathrm{NN}}} = 5.44~\text {TeV}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msqrt><mml:msub><mml:mi>s</mml:mi><mml:mi>NN</mml:mi></mml:msub></mml:msqrt><mml:mo>=</mml:mo><mml:mn>5.44</mml:mn><mml:mspace/><mml:mtext>TeV</mml:mtext></mml:mrow></mml:math> is presented. Transverse momentum ( $$p_{\mathrm{T}}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>p</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:math> ) spectra and $$p_{\mathrm{T}}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>p</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:math> -integrated yields are extracted in several centrality intervals bridging from p–Pb to mid-central Pb–Pb collisions in terms of final-state multiplicity. The study of Xe–Xe and Pb–Pb collisions allows systems at similar charged-particle multiplicities but with different initial geometrical eccentricities to be investigated. A detailed comparison of the spectral shapes in the two systems reveals an opposite behaviour for radial and elliptic flow. In particular, this study shows that the radial flow does not depend on the colliding system when compared at similar charged-particle multiplicity. In terms of hadron chemistry, the previously observed smooth evolution of particle ratios with multiplicity from small to large collision systems is also found to hold in Xe–Xe. In addition, our results confirm that two remarkable features of particle production at LHC energies are also valid in the collision of medium-sized nuclei: the lower proton-to-pion ratio with respect to the thermal model expectations and the increase of the $$\phi $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>ϕ</mml:mi></mml:math> -to-pion ratio with increasing final-state multiplicity.

Перевод пока недоступен

Идентификаторы

DOI: 10.1140/epjc/s10052-021-09304-4

Цитирования и источники

Цитирований: 2Использованных источников: 0

Показатели — AkademScholar