Scholars@Duke publication: Study of the interaction between Ξ baryons and light mesons via femtoscopy at the LHC

Study of the interaction between Ξ baryons and light mesons via femtoscopy at the LHC

Publication , Journal Article

Abualrob, IJ; Acharya, S; Aglieri Rinella, G; Aglietta, L; Agrawal, N; Ahammed, Z; Ahmad, S; Ahuja, I; Akbar, ZUL; Akindinov, A; Akishina, V ...

Published in: Physics Letters Section B Nuclear Elementary Particle and High Energy Physics

March 1, 2026

Published version (DOI)

Meson-baryon systems with strangeness content provide a unique laboratory for investigating the strong interaction and testing theoretical models of hadron structure and dynamics. In this work, the measured correlation functions for oppositely charged Ξ-K and Ξ−π pairs obtained in high-multiplicity pp collisions at s=13 TeV at the LHC are presented. For the first time, high-precision data on the Ξ-K interaction are delivered at small relative momenta. The scattering lengths, extracted via the Lednický–Lyuboshits expression of the pair wavefunction, indicate a repulsive and a shallow attractive strong interaction for the Ξ-K and Ξ−π systems, respectively. The Ξ(1620) and Ξ(1690) states are observed in the Ξ−π correlation function and their properties, mass and width, are determined. These measurements are in agreement with other available results. Such high-precision data can help refine the understanding of these resonant states, provide stronger constraints for chirally motivated potentials, and address the key challenge of describing the coupled-channel dynamics that may give rise to molecular configurations.

Duke Scholars

Author Seog Oh Physics

Published In

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics

DOI

10.1016/j.physletb.2026.140227

ISSN

0370-2693

Publication Date

March 1, 2026

Volume

874

Related Subject Headings

Nuclear & Particles Physics
51 Physical sciences
49 Mathematical sciences

Citation

APA

Chicago

ICMJE

MLA

NLM

Abualrob, I. J., Acharya, S., Aglieri Rinella, G., Aglietta, L., Agrawal, N., Ahammed, Z., … Binoy, A. (2026). Study of the interaction between Ξ baryons and light mesons via femtoscopy at the LHC. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, 874. https://doi.org/10.1016/j.physletb.2026.140227

Abualrob, I. J., S. Acharya, G. Aglieri Rinella, L. Aglietta, N. Agrawal, Z. Ahammed, S. Ahmad, et al. “Study of the interaction between Ξ baryons and light mesons via femtoscopy at the LHC.” Physics Letters Section B Nuclear Elementary Particle and High Energy Physics 874 (March 1, 2026). https://doi.org/10.1016/j.physletb.2026.140227.

Abualrob IJ, Acharya S, Aglieri Rinella G, Aglietta L, Agrawal N, Ahammed Z, et al. Study of the interaction between Ξ baryons and light mesons via femtoscopy at the LHC. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics. 2026 Mar 1;874.

Abualrob, I. J., et al. “Study of the interaction between Ξ baryons and light mesons via femtoscopy at the LHC.” Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, vol. 874, Mar. 2026. Scopus, doi:10.1016/j.physletb.2026.140227.

Abualrob IJ, Acharya S, Aglieri Rinella G, Aglietta L, Agrawal N, Ahammed Z, Ahmad S, Ahuja I, Akbar ZUL, Akindinov A, Akishina V, Al-Turany M, Aleksandrov D, Alessandro B, Alfaro Molina R, Ali B, Alici A, Alkin A, Alme J, Alocco G, Alt T, Altsybeev I, Andrei C, Andreou N, Andronic A, Andronov E, Angeletti M, Anguelov V, Antinori F, Antonioli P, Apadula N, Appelshäuser H, Arcelli S, Arnaldi R, Arneiro JGMCA, Arsene IC, Arslandok M, Augustinus A, Averbeck R, Azmi MD, Baba H, Babu ARJ, Badalà A, Bae J, Bae Y, Baek YW, Bai X, Bailhache R, Bailung Y, Bala R, Baldisseri A, Balis B, Bangalia S, Banoo Z, Barbasova V, Barile F, Barioglio L, Barlou M, Barman B, Barnaföldi GG, Barnby LS, Barreau E, Barret V, Barreto L, Barth K, Bartsch E, Bastid N, Batigne G, Battistini D, Batyunya B, Bauri D, Bazo Alba JL, Bearden IG, Becht P, Behera D, Behera S, Belikov I, Bella VD, Bellini F, Bellwied R, Beltran LGE, Beltran YAV, Bencedi G, Bensaoula A, Beole S, Berdnikov Y, Berdnikova A, Bergmann L, Bernardinis L, Betev L, Bhaduri PP, Bhalla T, Bhasin A, Bhattacharjee B, Bhattarai S, Bianchi L, Bielčík J, Bielčíková J, Bilandzic A, Binoy A. Study of the interaction between Ξ baryons and light mesons via femtoscopy at the LHC. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics. 2026 Mar 1;874.

Published In

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics

DOI

10.1016/j.physletb.2026.140227

ISSN

0370-2693

Publication Date

March 1, 2026

Volume

874

Related Subject Headings

Nuclear & Particles Physics
51 Physical sciences
49 Mathematical sciences