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Production of ω mesons in pp collisions at s=7TeV.

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Title: Production of ω mesons in pp collisions at s=7TeV.
Authors: Acharya, S.1 (AUTHOR), Adamová, D.2 (AUTHOR), Adler, A.3 (AUTHOR), Adolfsson, J.4 (AUTHOR), Aggarwal, M. M.5 (AUTHOR), Agha, S.6 (AUTHOR), Aglieri Rinella, G.7 (AUTHOR), Agnello, M.8 (AUTHOR), Agrawal, N.9,10 (AUTHOR), Ahammed, Z.1 (AUTHOR), Ahmad, S.11 (AUTHOR), Ahn, S. U.12 (AUTHOR), Akbar, Z.13 (AUTHOR), Akindinov, A.14 (AUTHOR), Al-Turany, M.15 (AUTHOR), Alam, S. N.16 (AUTHOR), Albuquerque, D. S. D.17 (AUTHOR), Aleksandrov, D.18 (AUTHOR), Alessandro, B.19 (AUTHOR), Alfanda, H. M.20 (AUTHOR)
Source: European Physical Journal C -- Particles & Fields. Dec2020, Vol. 80 Issue 12, p1-81. 81p.
Abstract: The invariant differential cross section of inclusive ω (782) meson production at midrapidity ( | y | < 0.5 ) in pp collisions at s = 7 TeV was measured with the ALICE detector at the LHC over a transverse momentum range of 2 < p T < 17 GeV / c . The ω meson was reconstructed via its ω → π + π - π 0 decay channel. The measured ω production cross section is compared to various calculations: PYTHIA 8.2 Monash 2013 describes the data, while PYTHIA 8.2 Tune 4C overestimates the data by about 50%. A recent NLO calculation, which includes a model describing the fragmentation of the whole vector-meson nonet, describes the data within uncertainties below 6 GeV / c , while it overestimates the data by up to 50% for higher p T . The ω / π 0 ratio is in agreement with previous measurements at lower collision energies and the PYTHIA calculations. In addition, the measurement is compatible with transverse mass scaling within the measured p T range and the ratio is constant with C ω / π 0 = 0.67 ± 0.03 (stat) ± 0.04 (sys) above a transverse momentum of 2.5 GeV / c . [ABSTRACT FROM AUTHOR]
Copyright of European Physical Journal C -- Particles & Fields is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Production of ω mesons in pp collisions at s=7TeV.
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  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Acharya%2C+S%2E%22&quot;&gt;Acharya, S.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Adamov&#225;%2C+D%2E%22&quot;&gt;Adamov&#225;, D.&lt;/searchLink&gt;&lt;relatesTo&gt;2&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Adler%2C+A%2E%22&quot;&gt;Adler, A.&lt;/searchLink&gt;&lt;relatesTo&gt;3&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Adolfsson%2C+J%2E%22&quot;&gt;Adolfsson, J.&lt;/searchLink&gt;&lt;relatesTo&gt;4&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Aggarwal%2C+M%2E+M%2E%22&quot;&gt;Aggarwal, M. M.&lt;/searchLink&gt;&lt;relatesTo&gt;5&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Agha%2C+S%2E%22&quot;&gt;Agha, S.&lt;/searchLink&gt;&lt;relatesTo&gt;6&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Aglieri+Rinella%2C+G%2E%22&quot;&gt;Aglieri Rinella, G.&lt;/searchLink&gt;&lt;relatesTo&gt;7&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Agnello%2C+M%2E%22&quot;&gt;Agnello, M.&lt;/searchLink&gt;&lt;relatesTo&gt;8&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Agrawal%2C+N%2E%22&quot;&gt;Agrawal, N.&lt;/searchLink&gt;&lt;relatesTo&gt;9,10&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Ahammed%2C+Z%2E%22&quot;&gt;Ahammed, Z.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Ahmad%2C+S%2E%22&quot;&gt;Ahmad, S.&lt;/searchLink&gt;&lt;relatesTo&gt;11&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Ahn%2C+S%2E+U%2E%22&quot;&gt;Ahn, S. U.&lt;/searchLink&gt;&lt;relatesTo&gt;12&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Akbar%2C+Z%2E%22&quot;&gt;Akbar, Z.&lt;/searchLink&gt;&lt;relatesTo&gt;13&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Akindinov%2C+A%2E%22&quot;&gt;Akindinov, A.&lt;/searchLink&gt;&lt;relatesTo&gt;14&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Al-Turany%2C+M%2E%22&quot;&gt;Al-Turany, M.&lt;/searchLink&gt;&lt;relatesTo&gt;15&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Alam%2C+S%2E+N%2E%22&quot;&gt;Alam, S. N.&lt;/searchLink&gt;&lt;relatesTo&gt;16&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Albuquerque%2C+D%2E+S%2E+D%2E%22&quot;&gt;Albuquerque, D. S. D.&lt;/searchLink&gt;&lt;relatesTo&gt;17&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Aleksandrov%2C+D%2E%22&quot;&gt;Aleksandrov, D.&lt;/searchLink&gt;&lt;relatesTo&gt;18&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Alessandro%2C+B%2E%22&quot;&gt;Alessandro, B.&lt;/searchLink&gt;&lt;relatesTo&gt;19&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Alfanda%2C+H%2E+M%2E%22&quot;&gt;Alfanda, H. M.&lt;/searchLink&gt;&lt;relatesTo&gt;20&lt;/relatesTo&gt; (AUTHOR)
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  Data: The invariant differential cross section of inclusive ω (782) meson production at midrapidity ( | y | &lt; 0.5 ) in pp collisions at s = 7 TeV was measured with the ALICE detector at the LHC over a transverse momentum range of 2 &lt; p T &lt; 17 GeV / c . The ω meson was reconstructed via its ω → π + π - π 0 decay channel. The measured ω production cross section is compared to various calculations: PYTHIA 8.2 Monash 2013 describes the data, while PYTHIA 8.2 Tune 4C overestimates the data by about 50%. A recent NLO calculation, which includes a model describing the fragmentation of the whole vector-meson nonet, describes the data within uncertainties below 6 GeV / c , while it overestimates the data by up to 50% for higher p T . The ω / π 0 ratio is in agreement with previous measurements at lower collision energies and the PYTHIA calculations. In addition, the measurement is compatible with transverse mass scaling within the measured p T range and the ratio is constant with C ω / π 0 = 0.67 &#177; 0.03 (stat) &#177; 0.04 (sys) above a transverse momentum of 2.5 GeV / c . [ABSTRACT FROM AUTHOR]
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  Data: &lt;i&gt;Copyright of European Physical Journal C -- Particles &amp; Fields is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
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