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Towards the understanding of the genuine three-body interaction for p–p–p and p–p–Λ.

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Title: Towards the understanding of the genuine three-body interaction for p–p–p and p–p–Λ.
Authors: Acharya, S.1,2 (AUTHOR), Adamová, D.3 (AUTHOR), Adler, A.4 (AUTHOR), Aglieri Rinella, G.5 (AUTHOR), Agnello, M.6 (AUTHOR), Agrawal, N.7 (AUTHOR), Ahammed, Z.2 (AUTHOR), Ahmad, S.8 (AUTHOR), Ahn, S. U.9 (AUTHOR), Ahuja, I.10 (AUTHOR), Akindinov, A.11 (AUTHOR), Al-Turany, M.12 (AUTHOR), Aleksandrov, D.11 (AUTHOR), Alessandro, B.13 (AUTHOR), Alfanda, H. M.14 (AUTHOR), Alfaro Molina, R.15 (AUTHOR), Ali, B.8 (AUTHOR), Ali, Y.16 (AUTHOR), Alici, A.17 (AUTHOR), Alizadehvandchali, N.18 (AUTHOR)
Source: European Physical Journal A -- Hadrons & Nuclei. Jul2023, Vol. 59 Issue 7, p1-22. 22p.
Subjects: Hyperfragments, Binding energy, Neutron stars, Hyperons, Statistical correlation, Cumulants
Abstract: Three-body nuclear forces play an important role in the structure of nuclei and hypernuclei and are also incorporated in models to describe the dynamics of dense baryonic matter, such as in neutron stars. So far, only indirect measurements anchored to the binding energies of nuclei can be used to constrain the three-nucleon force, and if hyperons are considered, the scarce data on hypernuclei impose only weak constraints on the three-body forces. In this work, we present the first direct measurement of the p–p–p and p–p– Λ systems in terms of three-particle correlation functions carried out for pp collisions at s = 13 TeV. Three-particle cumulants are extracted from the correlation functions by applying the Kubo formalism, where the three-particle interaction contribution to these correlations can be isolated after subtracting the known two-body interaction terms. A negative cumulant is found for the p–p–p system, hinting to the presence of a residual three-body effect while for p–p– Λ the cumulant is consistent with zero. This measurement demonstrates the accessibility of three-baryon correlations at the LHC. [ABSTRACT FROM AUTHOR]
Copyright of European Physical Journal A -- Hadrons & Nuclei 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: Towards the understanding of the genuine three-body interaction for p–p–p and p–p–Λ.
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  Data: <searchLink fieldCode="AR" term="%22Acharya%2C+S%2E%22">Acharya, S.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Adamová%2C+D%2E%22">Adamová, D.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Adler%2C+A%2E%22">Adler, A.</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Aglieri+Rinella%2C+G%2E%22">Aglieri Rinella, G.</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Agnello%2C+M%2E%22">Agnello, M.</searchLink><relatesTo>6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Agrawal%2C+N%2E%22">Agrawal, N.</searchLink><relatesTo>7</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ahammed%2C+Z%2E%22">Ahammed, Z.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ahmad%2C+S%2E%22">Ahmad, S.</searchLink><relatesTo>8</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ahn%2C+S%2E+U%2E%22">Ahn, S. U.</searchLink><relatesTo>9</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ahuja%2C+I%2E%22">Ahuja, I.</searchLink><relatesTo>10</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Akindinov%2C+A%2E%22">Akindinov, A.</searchLink><relatesTo>11</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Al-Turany%2C+M%2E%22">Al-Turany, M.</searchLink><relatesTo>12</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Aleksandrov%2C+D%2E%22">Aleksandrov, D.</searchLink><relatesTo>11</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Alessandro%2C+B%2E%22">Alessandro, B.</searchLink><relatesTo>13</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Alfanda%2C+H%2E+M%2E%22">Alfanda, H. M.</searchLink><relatesTo>14</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Alfaro+Molina%2C+R%2E%22">Alfaro Molina, R.</searchLink><relatesTo>15</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ali%2C+B%2E%22">Ali, B.</searchLink><relatesTo>8</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ali%2C+Y%2E%22">Ali, Y.</searchLink><relatesTo>16</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Alici%2C+A%2E%22">Alici, A.</searchLink><relatesTo>17</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Alizadehvandchali%2C+N%2E%22">Alizadehvandchali, N.</searchLink><relatesTo>18</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22European+Physical+Journal+A+--+Hadrons+%26+Nuclei%22">European Physical Journal A -- Hadrons & Nuclei</searchLink>. Jul2023, Vol. 59 Issue 7, p1-22. 22p.
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  Data: Three-body nuclear forces play an important role in the structure of nuclei and hypernuclei and are also incorporated in models to describe the dynamics of dense baryonic matter, such as in neutron stars. So far, only indirect measurements anchored to the binding energies of nuclei can be used to constrain the three-nucleon force, and if hyperons are considered, the scarce data on hypernuclei impose only weak constraints on the three-body forces. In this work, we present the first direct measurement of the p–p–p and p–p– Λ systems in terms of three-particle correlation functions carried out for pp collisions at s = 13 TeV. Three-particle cumulants are extracted from the correlation functions by applying the Kubo formalism, where the three-particle interaction contribution to these correlations can be isolated after subtracting the known two-body interaction terms. A negative cumulant is found for the p–p–p system, hinting to the presence of a residual three-body effect while for p–p– Λ the cumulant is consistent with zero. This measurement demonstrates the accessibility of three-baryon correlations at the LHC. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of European Physical Journal A -- Hadrons & Nuclei 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.</i> (Copyright applies to all Abstracts.)
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