Measurement of the production cross-section of $$J/\psi $$ and $$\psi (2{\textrm{S}})$$ mesons in pp collisions at $$\sqrt{s} = 13$$ TeV with the ATLAS detector


Aad, G ORCID: 0000-0002-6665-4934, Abbott, B ORCID: 0000-0002-5888-2734, Abeling, K ORCID: 0000-0002-1002-1652, Abicht, NJ ORCID: 0000-0001-5763-2760, Abidi, SH ORCID: 0000-0002-8496-9294, Aboulhorma, A ORCID: 0000-0002-9987-2292, Abramowicz, H ORCID: 0000-0001-5329-6640, Abreu, H ORCID: 0000-0002-1599-2896, Abulaiti, Y ORCID: 0000-0003-0403-3697, Acharya, BS ORCID: 0000-0002-8588-9157 et al (show 2935 more authors) (2024) Measurement of the production cross-section of $$J/\psi $$ and $$\psi (2{\textrm{S}})$$ mesons in pp collisions at $$\sqrt{s} = 13$$ TeV with the ATLAS detector. The European Physical Journal C, 84 (2). 169-.

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Abstract

<jats:title>Abstract</jats:title><jats:p>Measurements of the differential production cross-sections of prompt and non-prompt <jats:inline-formula><jats:alternatives><jats:tex-math>$$J/\psi $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>J</mml:mi> <mml:mo>/</mml:mo> <mml:mi>ψ</mml:mi> </mml:mrow> </mml:math></jats:alternatives></jats:inline-formula> and <jats:inline-formula><jats:alternatives><jats:tex-math>$$\psi (2{\textrm{S}})$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>ψ</mml:mi> <mml:mo>(</mml:mo> <mml:mn>2</mml:mn> <mml:mtext>S</mml:mtext> <mml:mo>)</mml:mo> </mml:mrow> </mml:math></jats:alternatives></jats:inline-formula> mesons with transverse momenta between 8 and 360 GeV and rapidity in the range <jats:inline-formula><jats:alternatives><jats:tex-math>$$|y|&lt;2$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mo>|</mml:mo> <mml:mi>y</mml:mi> <mml:mo>|</mml:mo> <mml:mo>&lt;</mml:mo> <mml:mn>2</mml:mn> </mml:mrow> </mml:math></jats:alternatives></jats:inline-formula> are reported. Furthermore, measurements of the non-prompt fractions of <jats:inline-formula><jats:alternatives><jats:tex-math>$$J/\psi $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>J</mml:mi> <mml:mo>/</mml:mo> <mml:mi>ψ</mml:mi> </mml:mrow> </mml:math></jats:alternatives></jats:inline-formula> and <jats:inline-formula><jats:alternatives><jats:tex-math>$$\psi (2{\textrm{S}})$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>ψ</mml:mi> <mml:mo>(</mml:mo> <mml:mn>2</mml:mn> <mml:mtext>S</mml:mtext> <mml:mo>)</mml:mo> </mml:mrow> </mml:math></jats:alternatives></jats:inline-formula>, and the prompt and non-prompt <jats:inline-formula><jats:alternatives><jats:tex-math>$$\psi (2{\textrm{S}})$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>ψ</mml:mi> <mml:mo>(</mml:mo> <mml:mn>2</mml:mn> <mml:mtext>S</mml:mtext> <mml:mo>)</mml:mo> </mml:mrow> </mml:math></jats:alternatives></jats:inline-formula>-to-<jats:inline-formula><jats:alternatives><jats:tex-math>$$J/\psi $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>J</mml:mi> <mml:mo>/</mml:mo> <mml:mi>ψ</mml:mi> </mml:mrow> </mml:math></jats:alternatives></jats:inline-formula> production ratios, are presented. The analysis is performed using 140 fb<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> of <jats:inline-formula><jats:alternatives><jats:tex-math>$$\sqrt{s}=13$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> <mml:mo>=</mml:mo> <mml:mn>13</mml:mn> </mml:mrow> </mml:math></jats:alternatives></jats:inline-formula> TeV <jats:italic>pp</jats:italic> collision data recorded by the ATLAS detector at the LHC during the years 2015–2018.</jats:p>

Item Type: Article
Divisions: Faculty of Health and Life Sciences
Faculty of Science and Engineering > School of Physical Sciences
Faculty of Health and Life Sciences > Institute of Systems, Molecular and Integrative Biology
Depositing User: Symplectic Admin
Date Deposited: 18 Mar 2024 14:48
Last Modified: 18 Mar 2024 14:49
DOI: 10.1140/epjc/s10052-024-12439-9
Open Access URL: https://link.springer.com/article/10.1140/epjc/s10...
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3179612
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