> Details
Aad, G.;
Abbott, B.;
Abbott, D. C.;
Abed Abud, A.;
Abeling, K.;
Abhayasinghe, D. K.;
Abidi, S. H.;
AbouZeid, O. S.;
Abraham, N. L.;
Abramowicz, H.;
Abreu, H.;
Abulaiti, Y.;
Acharya, B. S.;
Achkar, B.;
Adachi, S.;
Adam, L.;
Adam Bourdarios, C.;
Adamczyk, L.;
Adamek, L.;
Adelman, J.;
Adersberger, M.;
Adiguzel, A.;
Adorni, S.;
Adye, T.;
[...]
Two-particle Bose–Einstein correlations in $${ pp }$$ collisions at $$\mathbf {\sqrt{s} = 13}$$ TeV measured with the ATLAS detector at the LHC
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- Media type: E-Article
- Title: Two-particle Bose–Einstein correlations in $${ pp }$$ collisions at $$\mathbf {\sqrt{s} = 13}$$ TeV measured with the ATLAS detector at the LHC
- Contributor: Aad, G.; Abbott, B.; Abbott, D. C.; Abed Abud, A.; Abeling, K.; Abhayasinghe, D. K.; Abidi, S. H.; AbouZeid, O. S.; Abraham, N. L.; Abramowicz, H.; Abreu, H.; Abulaiti, Y.; Acharya, B. S.; Achkar, B.; Adachi, S.; Adam, L.; Adam Bourdarios, C.; Adamczyk, L.; Adamek, L.; Adelman, J.; Adersberger, M.; Adiguzel, A.; Adorni, S.; Adye, T.; [...]
- imprint: Springer Science and Business Media LLC, 2022
- Published in: The European Physical Journal C
- Language: English
- DOI: 10.1140/epjc/s10052-022-10472-0
- ISSN: 1434-6052
- Keywords: Physics and Astronomy (miscellaneous) ; Engineering (miscellaneous)
- Origination:
- Footnote:
- Description: <jats:title>Abstract</jats:title><jats:p>This paper presents studies of Bose–Einstein correlations (BEC) in proton–proton collisions at a centre-of-mass energy of 13 TeV, using data from the ATLAS detector at the CERN Large Hadron Collider. Data were collected in a special low-luminosity configuration with a minimum-bias trigger and a high-multiplicity track trigger, accumulating integrated luminosities of 151 <jats:inline-formula><jats:alternatives><jats:tex-math>$$\upmu $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>μ</mml:mi> </mml:math></jats:alternatives></jats:inline-formula>b<jats:inline-formula><jats:alternatives><jats:tex-math>$$^{-1}$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mrow /> <mml:mrow> <mml:mo>-</mml:mo> <mml:mn>1</mml:mn> </mml:mrow> </mml:msup> </mml:math></jats:alternatives></jats:inline-formula> and 8.4 nb<jats:inline-formula><jats:alternatives><jats:tex-math>$$^{-1}$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mrow /> <mml:mrow> <mml:mo>-</mml:mo> <mml:mn>1</mml:mn> </mml:mrow> </mml:msup> </mml:math></jats:alternatives></jats:inline-formula>, respectively. The BEC are measured for pairs of like-sign charged particles, each with <jats:inline-formula><jats:alternatives><jats:tex-math>$$|\eta | < 2.5$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mo>|</mml:mo> <mml:mi>η</mml:mi> <mml:mo>|</mml:mo> <mml:mo><</mml:mo> <mml:mn>2.5</mml:mn> </mml:mrow> </mml:math></jats:alternatives></jats:inline-formula>, for two kinematic ranges: the first with particle <jats:inline-formula><jats:alternatives><jats:tex-math>$$p_{\mathrm {T}} > 100$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msub> <mml:mi>p</mml:mi> <mml:mi>T</mml:mi> </mml:msub> <mml:mo>></mml:mo> <mml:mn>100</mml:mn> </mml:mrow> </mml:math></jats:alternatives></jats:inline-formula> MeV and the second with particle <jats:inline-formula><jats:alternatives><jats:tex-math>$$p_{\mathrm {T}} > 500$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msub> <mml:mi>p</mml:mi> <mml:mi>T</mml:mi> </mml:msub> <mml:mo>></mml:mo> <mml:mn>500</mml:mn> </mml:mrow> </mml:math></jats:alternatives></jats:inline-formula> MeV. The BEC parameters, characterizing the source radius and particle correlation strength, are investigated as functions of charged-particle multiplicity (up to 300) and average transverse momentum of the pair (up to 1.5 GeV). The double-differential dependence on charged-particle multiplicity and average transverse momentum of the pair is also studied. The BEC radius is found to be independent of the charged-particle multiplicity for high charged-particle multiplicity (above 100), confirming a previous observation at lower energy. This saturation occurs independent of the transverse momentum of the pair.</jats:p>
- Access State: Open Access