Proton-Λ correlations in central Au+Au collisions at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msqrt><mml:mrow><mml:msub><mml:mi>s</mml:mi><mml:mrow><mml:mi mathvariant="italic">NN</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:msqrt><mml:mo>=</mml:mo><mml:mn>200</mml:mn></mml:mrow></mml:math>GeV

Adams, J. R.; Aggarwal, M. M.; Ahammed, Z.; Amonett, J.; Anderson, B. D.; Arkhipkin, D.; Averichev, G. S.; Badyal, S. K.; Bai, Y.; Balewski, J.; Barannikova, O.; Barnby, L. S.; Baudot, J.; Bekele, S.; Belaga, V. V.; Bellingeri-Laurikainen, A.; Bellwied, R.; Berger, J.; Bezverkhny, B. I.; Bharadwaj, Samarth; Bhasin, A.; Bhati, A. K.; Bhatia, V. S.; Bichsel, H.; Bielčík, J.; Bielčíková, J.; Billmeier, A.; Bland, L. C.; Blyth, C. O.; Blyth, S.; Bonner, B. E.; Botje, M.; Boucham, A.; Bouchet, J.; Brandin, A. V.; Bravar, A.; Bysterský, M.; Cadman, R. V.; Cai, X. Z.; Caines, H.; Sánchez, M. Calderón De La Barca; Castillo, J.; Catu, O.; Cebra, D.; Chajęcki, Z.; Chaloupka, P.; Chattopadhyay, S.; Chen, H. F.; Chen, J. H.; Chen, Y.; Cheng, J.; Cherney, M.; Chikanian, A.; Choi, H. A.; Christie, W.; Coffin, J. P.; Cormier, T. M.; Cosentino, M. R.; Cramer, J. G.; Crawford, H. J.; Das, Dipayan; Das, Sudipta; Daugherity, M.; Moura, M. M. de; Dedovich, T. G.; Dephillips, M.; Derevschikov, A. 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G.; Kabana, S.; Kang, K.; Kaplan, M.; Keane, D.; Kechechyan, A.; Khodyrev, V. Yu; Kim, B. C.; Kiryluk, J.; Kisiel, A.; Kislov, E. M.; Klay, J. L.; Klein, S. R.; Koetke, D. D.; Kollegger, T.; Kopytine, M.; Kotchenda, L.; Kowalik, K.; Krämer, M.; Кравцов, П.; Kravtsov, V. I.; Krueger, K.; Kuhn, C.; Куликов, А. И.; Kumar, Ajay; Kutuev, R.Kh.; Кузнецов, А. А.; Lamont, M. A.C.; Landgraf, J. M.; Lange, S.; Laue, F.; Lauret, J.; Lebedev, A.; Lednický, R.; Lee, C. H.; Lehocká, S.; LeVine, M. J.; Li, C.; Li, Q.; Li, Y.; Lin, G.; Lindenbaum, S. J.; Lisa, M. A.; Liu, F.; Liu, H.; Liu, J.; Liu, L.; Liu, Q. J.; Liu, Z.; Ljubičić, T.; Llope, W. J.; Long, H.; Longacre, R. S.; Lopez-Noriega, M.; Love, W. A.; Lu, Y.; Ludlam, T.; Lynn, D.; L., G.; G., J.; G., Y.; Magestro, D.; Mahajan, S.; Mahapatra, D. P.; Majka, R.; Mangotra, L. K.; Manweiler, R.; Margetis, S.; Markert, C.; Martin, L.; Marx, J. N.; Matis, H. S.; Matulenko, Yu. A.; McClain, C. J.; McShane, T. 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doi:10.1103/physrevc.74.064906

Cited by 56 publications

(24 citation statements)

References 41 publications

Supporting

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“…The wave functions for this potential, which is given in separable form in momentum space, can be calculated again via Eq. (11). Furthermore, we performed a rough refit of the JülichKN model with the aim to bring the K − p results more in line with the value extracted from the level shifts.…”

Section: 2kn Interactionmentioning

confidence: 99%

“…After all, those correlations do not only depend on quantum statistical effects and on the source but also reflect the final-state interaction (FSI) of the emitted particle pair. With that aim, measurements of the momentum correlations for baryon-baryon systems such as pΛ [11,12,13,14],pΛ (pΛ) [11], and ΛΛ [14,15,16] have been performed over the last few years, in heavy ion collisions but also in high-energetic proton-proton (pp) collisions, and analyzed theoretically [6,7,8,9]. See also Ref.…”

Section: Introductionmentioning

confidence: 99%

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Coupled-channel effects in hadron–hadron correlation functions

Haidenbauer¹

2019

Nuclear Physics A

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Two-particle momentum correlation functions as measured in heavy ion collisions or in high-energetic proton-proton collisions are studied. Special emphasis is put on systems like ΛΛ or K − p where effects from the coupling to other channels could be relevant. In both cases other channels open at relatively low momenta or are already open at the reaction threshold. To have a solid basis, realistic coupled-channel interactions for ΛΛ − ΞN − ΛΣ − ΣΣ and πΛ − πΣ −KN are utilized in the actual calculations. It is found that the opening of the ΞN channel leaves a trace in the ΛΛ correlation function that could be detectable in experiments. Should the proposed H-dibaryon be located close to or below the ΞN it will have a very pronounced effect. The presence of open channels in systems like Ξ − p or K − p does influence the correlation functions significantly at low momenta and will certainly complicate any dedicated analysis.

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Section: 2kn Interactionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Coupled-channel effects in hadron–hadron correlation functions

Haidenbauer¹

2019

Nuclear Physics A

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“…They allows for (see ref 16,20 and references therein) coalescence femtoscopy, correlation femtoscopy with non-identical particles, including access to the relative space-time production asymmetries, and a measurement of the strong interaction between specific particles. The latter measurement is often difficult to access by other means and is the focus of this paper (for recent studies see ref 21,22 ).…”

mentioning

confidence: 99%

“…C ΛΛ (k * ) is from an experimental measurement corrected for misidentified Λ's 22 . R pp and R pΛ , assumed numerically to be the same, are the invariant Gaussian radii 21 from the proton-proton correlation and the proton-Λ correlation, respectively. x pp , x pΛ and x ΛΛ , taken from the THERMINATOR2 model 26 , are the relative contributions from pairs with both daughters from the primary collision, pairs with one daughter from the primary collision and the other one from a Λ decay, and pairs with both daughters from a Λ decay, respectively.…”

mentioning

confidence: 99%

“…In this model, for given swave scattering parameters, the correlation function with FSI is calculated as the square of the properly symmetrized wave function averaged over the total pair spin and the distribution of relative distances of particle emission points in the pair rest frame (see Methods). C pΛ (k * ; R pΛ ) is the proton-Λ CF from a theoretical calculation 19 , which includes all final-state interactions and explains experimental data well 21 . C ΛΛ (k * ) is from an experimental measurement corrected for misidentified Λ's 22 .…”

mentioning

confidence: 99%

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Measurement of interaction between antiprotons

Adamczyk

Adkins

Agakishiev

et al. 2015

Nature

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One of the primary goals of nuclear physics is to understand the force between nucleons, which is a necessary step for understanding the structure of nuclei and how nuclei interact with each other. Rutherford discovered the atomic nucleus in 1911, and the large body of knowledge about the nuclear force since acquired was derived from studies made on nucleons or nuclei. Although antinuclei up to antihelium-4 have been discovered 1 and their masses measured, we have no direct knowledge of the nuclear force between antinucleons. Here, we study antiproton pair correlations among data taken by the STAR experiment 2 at the Relativistic Heavy Ion Collider (RHIC) 3 and show that the force between two antiprotons is attractive. In addition, we report two key parameters that characterize the corresponding strong interaction: namely, the scattering length (f 0 ) and effective range (d 0 ). As direct information on the interaction between two antiprotons, one of the simplest systems of antinucleons, our result provides a fundamental ingredient for understanding the structure of more complex antinuclei and their properties.Although the theory of Quantum Chromodynamics (QCD) provides us with an understanding of the foundation of the nuclear force, this binding interaction in nuclei operates at low energy, where the force is strong and difficult to calculate directly from the theory. For that reason, a common parameterization of the effective interaction between nucleons is based on experimental measurements, and the corresponding parameterization for antinucleons remains undetermined. Ultra-relativistic nuclear collisions produce an energy density similar to that of the Universe microseconds after the Big Bang, and the high energy density creates a favourable environment for antimatter production. The abundantly produced antiprotons provide the opportunity to measure, for the first time, the parameters f 0 and d 0 of the strong nuclear force between antinucleons rather than nucleons.The technique used to probe the antiproton-antiproton interaction involves momentum correlations, and it resembles the space-time correlation technique used in Hanbury-Brown and Twiss (HBT) intensity interferometry. Since its invention for use in astronomy by Robert Hanbury-

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Femtoscopy of the Origin of the Nucleon Mass

Krein

Peixoto

2020

Few-Body Syst

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Proton-Λ correlations in central Au+Au collisions atsNN=200GeV

Cited by 56 publications

References 41 publications

Coupled-channel effects in hadron–hadron correlation functions

Coupled-channel effects in hadron–hadron correlation functions

Measurement of interaction between antiprotons

Femtoscopy of the Origin of the Nucleon Mass

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