@article{3191124,
    title = "Investigation of the p-Sigma(0) interaction via femtoscopy in pp
collisions",
    author = "Acharya, S. and Adamova, D. and Adler, A. and Adolfsson, J. and and Aggarwal, M. M. and Rinella, G. Aglieri and Agnello, M. and Agrawal, N. and and Ahammed, Z. and Ahmad, S. and Ahn, S. U. and Akindinov, A. and and Al-Turany, M. and Alam, S. N. and Albuquerque, D. S. D. and Aleksandrov, and D. and Alessandro, B. and Alfanda, H. M. and Alfaro Molina, R. and Ali, and B. and Ali, Y. and Alici, A. and Alkin, A. and Alme, J. and Alt, T. and and Altenkamper, L. and Altsybeev, I and Anaam, M. N. and Andrei, C. and and Andreou, D. and Andrews, H. A. and Andronic, A. and Angeletti, M. and and Anguelov, V and Anson, C. and Anticic, T. and Antinori, F. and and Antonioli, P. and Anwar, R. and Apadula, N. and Aphecetche, L. and and Appelshaeuser, H. and Arcelli, S. and Arnaldi, R. and Arratia, M. and and Arsene, I. C. and Arslandok, M. and Augustinus, A. and Averbeck, R. and and Aziz, S. and Azmi, M. D. and Badal, A. and Baek, Y. W. and Bagnasco, S. and and Bai, X. and Bailhache, R. and Bala, R. and Baldisseri, A. and Ball, and M. and Balouza, S. and Barbera, R. and Barioglio, L. and Barnafoldi, G. and G. and Barnby, L. S. and Barret, V and Bartalini, P. and Barth, K. and and Bartsch, E. and Baruffaldi, F. and Bastid, N. and Basu, S. and Batigne, and G. and Batyunya, B. and Bauri, D. and Bazo Alba, J. L. and Bearden, I. and G. and Bedda, C. and Behera, N. K. and Belikov, I and Hechavarria, A. D. and C. Bell and Bellini, F. and Bellwied, R. and Belyaev, V and Bencedi, G. and and Beole, S. and Bercuci, A. and Berdnikov, Y. and Berenyi, D. and and Bertens, R. A. and Berzano, D. and Besoiu, M. G. and Betev, L. and and Bhasin, A. and Bhat, I. R. and Bhat, M. A. and Bhatt, H. and and Bhattacharjee, B. and Bianchi, A. and Bianchi, L. and Bianchi, N. and and Bielcik, J. and Bielcikova, J. and Bilandzic, A. and Biro, G. and and Biswas, R. and Biswas, S. and Blair, J. 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B. and Zinovjev, G. and Zurlo, N. and ALICE and Collaboration",
    journal = "PHYSICS LETTERS B",
    year = "2020",
    volume = "805",
    publisher = "Elsevier",
    issn = "0370-2693",
    doi = "10.1016/j.physletb.2020.135419",
    abstract = "This Letter presents the first direct investigation of the p-Sigma(0)
interaction, using the femtoscopy technique in high-multiplicity pp
collisions at root s = 13 TeV measured by the ALICE detector. The
Sigma(0) is reconstructed via the decay channel to Lambda gamma, and the
subsequent decay of Lambda to p pi(-). The photon is detected via the
conversion in material to e(+)e(-) pairs exploiting the capability of
the ALICE detector to measure electrons at low transverse momenta. The
measured p-Sigma(0) correlation indicates a shallow strong interaction.
The comparison of the data to several theoretical predictions obtained
employing the Correlation Analysis Tool using the Schrodinger Equation
(CATS) and the Lednicky-Lyuboshits approach shows that the current
experimental precision does not yet allow to discriminate between
different models, as it is the case for the available scattering and
hypernuclei data. Nevertheless, the p-Sigma(0) correlation function is
found to be sensitive to the strong interaction, and driven by the
interplay of the different spin and isospin channels. This pioneering
study demonstrates the feasibility of a femtoscopic measurement in the
p-Sigma(0) channel and with the expected larger data samples in LHC Run
3 and Run 4, the p-Sigma(0) interaction will be constrained with high
precision. (C) 2020 European Organization for Nuclear Research.
Published by Elsevier B.V."
}