Study of the interaction between Ξ baryons and light mesons via femtoscopy at the LHC
Publication date
2026-03
Authors
Abualrob, I. J.
Acharya, S.
Aglieri Rinella, G.
Aglietta, L.
Agrawal, N.
Ahammed, Z.
Ahmad, S.
Ahuja, I.
Akbar, Z. U.L.
Akindinov, A.
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Supervisors
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Article
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Abstract
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.
Keywords
Femtoscopy, Meson-baryon interaction, Molecular states, Strangeness, Strong interaction, Nuclear and High Energy Physics
Citation
Abualrob, I J, Acharya, S, Aglieri Rinella, G, Aglietta, L, Agrawal, N, Ahammed, Z, Ahmad, S, Ahuja, I, Akbar, Z U L, 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, J G M C A, Arsene, I C, Arslandok, M, Augustinus, A, Averbeck, R, Azmi, M D, Baba, H, Babu, A R J, Badalà, A, Bae, J, Bae, Y, Baek, Y W, 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, G G, Barnby, L S, Barreau, E, Barret, V, Barreto, L, Barth, K, Bartsch, E, Bastid, N, Batigne, G, Battistini, D, Batyunya, B, Bauri, D, Bazo Alba, J L, Bearden, I G, Becht, P, Behera, D, Behera, S, Belikov, I, Bella, V D, Bellini, F, Bellwied, R, Beltran, L G E, Beltran, Y A V, Bencedi, G, Bensaoula, A, Beole, S, Berdnikov, Y, Berdnikova, A, Bergmann, L, Bernardinis, L, Betev, L, Bhaduri, P P, Bhalla, T, Bhasin, A, Bhattacharjee, B, Bhattarai, S, Bianchi, L, Bielčík, J, Bielčíková, J, Bilandzic, A, Binoy, A, Biro, G, Biswas, S, Blau, D, Blidaru, M B, Bluhme, N, Blume, C, Bock, F, Bodova, T, Boldizsár, L, Bombara, M, Bond, P M, Bonomi, G, Borel, H, Borissov, A, Borquez Carcamo, A G, Botta, E, Bouziani, Y E M, Brandibur, D C, Bratrud, L, Braun-Munzinger, P, Bregant, M, Broz, M, Bruno, G E, Buchakchiev, V D, Buckland, M D, Buesching, H, Bufalino, S, Buhler, P, Burmasov, N, Buthelezi, Z, Bylinkin, A, Carr, C, Cabanillas Noris, J C, Cabrera, M F T, Caines, H, Caliva, A, Calvo Villar, E, Camacho, J M M, Camerini, P, Camerlingo, M T, Canedo, F D M, Cannito, S, Cantway, S L, Carabas, M, Carnesecchi, F, Carvalho, L A D, Castillo Castellanos, J, Castoldi, M, Catalano, F, Cattaruzzi, S, Cerri, R, Chakaberia, I, Chakraborty, P, Chan, J W O, Chandra, S, Chapeland, S, Chartier, M, Chattopadhay, S, Chen, M, Cheng, T, Cheshkov, C, Chiappara, D, Chibante Barroso, V, Chinellato, D D, Chinu, F, Chizzali, E S, Cho, J, Cho, S, Chochula, P, Chochulska, Z A, Christakoglou, P, Christensen, C H, Christiansen, P, Chujo, T, Ciacco, M, Cicalo, C, Cimador, G, Cindolo, F, Colamaria, F, Colella, D, Colelli, A, Colocci, M, Concas, M, Conesa Balbastre, G, Conesa del Valle, Z, Contin, G, Contreras, J G, Coquet, M L, Cortese, P, Cosentino, M R, Costa, F, Costanza, S, Crochet, P, Czarnynoga, M M, Dainese, A, Dange, G, Danisch, M C, Danu, A, Daribayeva, A, Das, P, Das, S, Dash, A R, Dash, S, De Caro, A, de Cataldo, G, de Cuveland, J, De Falco, A, De Gruttola, D, De Marco, N, De Martin, C, De Pasquale, S, Deb, R, Del Grande, R, Dello Stritto, L, de Souza, G G A, Dhankher, P, Di Bari, D, Di Costanzo, M, Di Mauro, A, Di Ruzza, B, Diab, B, Ding, Y, Ditzel, J, Divià, R, Dmitrieva, U, Dobrin, A, Dönigus, B, Döpper, L, Dubinski, J M, Dubla, A, Dupieux, P, Dzalaiova, N, Eder, T M, Ehlers, R J, Eisenhut, F, Ejima, R, Elia, D, Erazmus, B, Ercolessi, F, Espagnon, B, Eulisse, G, Evans, D, Fabbietti, L, Faggin, M, Faivre, J, Fan, F, Fan, W, Fang, T, Fantoni, A, Fasel, M, Feliciello, A, Feofilov, G, Fernández Téllez, A, Ferrandi, L, Ferrero, A, Ferrero, C, Ferretti, A, Feuillard, V J G, Finogeev, D, Fionda, F M, Flores, A N, Foertsch, S, Fokin, I, Fokin, S, Follo, U, Forynski, R, Fragiacomo, E, Fribert, H, Fuchs, U, Funicello, N, Furget, C, Furs, A, Fusayasu, T, Gaardhøje, J J, Gagliardi, M, Gago, A M, Gahlaut, T, Galvan, C D, Gami, S, Ganoti, P, Garabatos, C, Garcia, J M, García Chávez, T, Garcia-Solis, E, Garetti, S, Gargiulo, C, Gasik, P, Gaur, H M, Gautam, A, Gay Ducati, M B, Germain, M, Gernhaeuser, R A, Ghosh, C, Giacalone, M, Gioachin, G, Giri, S K, Giubellino, P, Giubilato, P, Glässel, P, Glimos, E, Gonella, L, Gonzalez, V, Gorgon, M, Goswami, K, Gotovac, S, Grabski, V, Graczykowski, L K, Grecka, E, Grelli, A, Grigoras, C, Grigoriev, V, Grigoryan, S, Groettvik, O S, Grosa, F, Gross-Bölting, S, Grosse-Oetringhaus, J F, Grosso, R, Grund, D, Grunwald, N A, Guernane, R, Guilbaud, M, Gulbrandsen, K, Gumprecht, J K, Gündem, T, Gunji, T, Guo, J, Guo, W, Gupta, A, Gupta, R, Gupta, R, Gwizdziel, K, Gyulai, L, Hadjidakis, C, Haider, F U, Haidlova, S, Haldar, M, Hamagaki, H, Han, Y, Hanley, B G, Hannigan, R, Hansen, J, Harris, J W, Harton, A, Hartung, M V, Hasan, A, Hassan, H, Hatzifotiadou, D, Hauer, P, Havener, L B, Hellbär, E, Helstrup, H, Hemmer, M, Herman, T, Hernandez, S G, Herrera Corral, G, Hetland, K F, Heybeck, B, Hillemanns, H, Hippolyte, B, Hobus, I P M, Hoffmann, F W, Hofman, B, Horst, M, Horzyk, A, Hou, Y, Hristov, P, Huhn, P, Huhta, L M, Humanic, T J, Humlova, V, Hutson, A, Hutter, D, Hwang, M C, Ilkaev, R, Inaba, M, Ippolitov, M, Isakov, A, Isidori, T, Islam, M S, Ivanov, M, Ivanov, M, Iversen, K E, Kim, J G, Jablonski, M, Jacak, B, Jacazio, N, Jacobs, P M, Jadlovska, A, Jadlovska, S, Jaelani, S, Jahnke, C, Jakubowska, M J, Jamro, E P, Janik, D M, Janik, M A, Ji, S, Ji, Y, Jia, S, Jiang, T, Jimenez, A A P, Jin, S, Jonas, F, Jones, D M, Jowett, J M, Jung, J, Jung, M, Junique, A, Jusko, A, Kaewjai, J, Kalinak, P, Kalweit, A, Karasu Uysal, A, Karatzenis, N, Karavichev, O, Karavicheva, T, Karwowska, M J, Kashyap, V, Keil, M, Ketzer, B, Keul, J, Khade, S S, Khan, A M, Khanzadeev, A, Kharlov, Y, Khatun, A, Khuntia, A, Khuranova, Z, Kileng, B, Kim, B, Kim, D J, Kim, D, Kim, E J, Kim, G, Kim, H, Kim, J, Kim, J, Kim, J, Kim, M, Kim, S, Kim, T, Kimura, K, Kinner, J T, Kirsch, S, Kisel, I, Kiselev, S, Kisiel, A, Klay, J L, Klein, J, Klein, S, Klein-Bösing, C, Kleiner, M, Kluge, A, Knuesel, M B, Kobdaj, C, Kohara, R, Kondratyev, A, Kondratyeva, N, Konig, J, Konopka, P J, Kornakov, G, Korwieser, M, Koryciak, S D, Koster, C, Kotliarov, A, Kovacic, N, Kovalenko, V, Kowalski, M, Kozhuharov, V, Kozlov, G, Králik, I, Kravčáková, A, Krcal, L, Krivda, M, Krizek, F, Krizkova Gajdosova, K, Krug, C, Krüger, M, Kryshen, E, Kučera, V, Kuhn, C, Kumaoka, T, Kumar, D, Kumar, L, Kumar, N, Kumar, S, Kundu, S, Kuo, M, Kurashvili, P, Kurepin, A B, Kurita, S, Kuryakin, A, Kushpil, S, Kuznetsov, A, Kweon, M J, Kwon, Y, La Pointe, S L, La Rocca, P, Lakrathok, A, Lambert, S, Landou, A R, Langoy, R, Laudi, E, Lautner, L, Laveaga, R A N, Lavicka, R, Lea, R, Lebert, J B, Lee, H, Legrand, I, Legras, G, Lejeune, A M, Lelek, T M, León Monzón, I, Lesch, M M, Lévai, P, Li, M, Li, P, Li, X, Liang-Gilman, B E, Lien, J, Lietava, R, Likmeta, I, Lim, B, Lim, H, Lim, S H, Lin, S, Lindenstruth, V, Lippmann, C, Liskova, D, Liu, D H, Liu, J, Liveraro, G S S, Lofnes, I M, Loizides, C, Lokos, S, Lömker, J, Lopez, X, López Torres, E, Lotteau, C, Lu, P, Lu, W, Lu, Z, Lubynets, O, Lugo, F V, Luo, J, Luparello, G, Johnson, M A T, Friedrich, J M, Ma, Y G, Mager, M, Maire, A, Majerz, E M, Makariev, M V, Malfattore, G, Malik, N, Malik, N, Malik, S K, Mallick, D, Mallick, N, Mandaglio, G, Mandal, S K, Manea, A, Manhart, R S, Manko, V, Manna, A K, Manso, F, Mantzaridis, G, Manzari, V, Mao, Y, Marcjan, R W, Margagliotti, G V, Margotti, A, Marín, A, Markert, C, Martinengo, P, Martínez, M I, Martins, M P P, Masciocchi, S, Masera, M, Masoni, A, Massacrier, L, Massen, O, Mastroserio, A, Mattei, L, Mattiazzo, S, Matyja, A, Mayo, J L, Mazzaschi, F, Mazzilli, M, Melikyan, Y, Melo, M, Menchaca-Rocha, A, Mendez, J E M, Meninno, E, Menzel, M W, Meres, M, Micheletti, L, Mihai, D, Mihaylov, D L, Mikalsen, A U, Mikhaylov, K, Millot, L, Minafra, N, Miśkowiec, D, Modak, A, Mohanty, B, Mohisin Khan, M, Molander, M A, Mondal, M M, Monira, S, Moreira De Godoy, D A, Morsch, A, Mrnjavac, T, Mrozinski, S, Muccifora, V, Muhuri, S, Mulliri, A, Munhoz, M G, Munzer, R H, Murakami, H, Musa, L, Musinsky, J, Myrcha, J W, Naik, B, Nambrath, A I, Nandi, B K, Nania, R, Nappi, E, Nassirpour, A F, Nastase, V, Nath, A, Nathanson, N F, Naumov, K, Neagu, A, Nellen, L, Nepeivoda, R, Nese, S, Nicassio, N, Nielsen, B S, Nielsen, E G, Nikolaev, S, Nikulin, V, Noferini, F, Noh, S, Nomokonov, P, Norman, J, Novitzky, N, Nyanin, A, Nystrand, J, Ockleton, M R, Ogino, M, Oh, J, Oh, S, Ohlson, A, Oida, M, Okorokov, V A, Oppedisano, C, Ortiz Velasquez, A, Osanai, H, Otwinowski, J, Oya, M, Oyama, K, Padhan, S, Pagano, D, Paić, G, Paisano-Guzmán, S, Palasciano, A, Panasenko, I, Panigrahi, P, Pantouvakis, C, Park, H, Park, J, Park, S, Park, T Y, Parkkila, J E, Pati, P B, Patley, Y, Patra, R N, Paudel, P, Paul, B, Pei, H, Peitzmann, T, Peng, X, Pennisi, M, Perciballi, S, Peresunko, D, Perez, G M, Pestov, Y, Petrovici, M, Piano, S, Pikna, M, Pillot, P, Pinazza, O, Pinto, C, Pisano, S, Płoskoń, M, Planinic, M, Plociennik, D K, Poghosyan, M G, Polichtchouk, B, Politano, S, Poljak, N, Pop, A, Porteboeuf-Houssais, S, Potgieter, J S, Pozos, I Y, Pradhan, K K, Prasad, S K, Prasad, S, Preghenella, R, Prino, F, Pruneau, C A, Pshenichnov, I, Puccio, M, Pucillo, S, Pulawski, S, Quaglia, L, Radhakrishnan, A M K, Ragoni, S, Rai, A, Rakotozafindrabe, A, Ramasubramanian, N, Ramello, L, Ramírez-Álvarez, C O, Rasa, M, Räsänen, S S, Rath, R, Rauch, M P, Ravasenga, I, Read, K F, Reckziegel, C, Redelbach, A R, Redlich, K, Reetz, C A, Regules-Medel, H D, Rehman, A, Reidt, F, Reme-Ness, H A, Reygers, K, Ricci, R, Richter, M, Riedel, A A, Riegler, W, Riffero, A G, Rignanese, M, Ripoli, C, Ristea, C, Rodriguez, M V, Rodríguez Cahuantzi, M, Røed, K, Rogalev, R, Rogochaya, E, Rohr, D, Röhrich, D, Rojas Torres, S, Rokita, P S, Romanenko, G, Ronchetti, F, Rosales Herrera, D, Rosas, E D, Roslon, K, Rossi, A, Roy, A, Roy, S, Rubini, N, Rudolph, J A, Ruggiano, D, Rui, R, Russek, P G, Rustamov, A, Ryabov, Y, Rybicki, A, Ryder, L C V, Ryu, G, Ryu, J, Rzesa, W, Sabiu, B, Sadek, R, Sadhu, S, Sadovsky, S, Saha, A, Saha, S, Sahoo, B, Sahoo, R, Sahu, D, Sahu, P K, Saini, J, Sakai, S, Sambyal, S, Samitz, D, Sanna, I, Saramela, T B, Sarkar, D, Sarritzu, V, Sarti, V M, Savino, U, Sawan, S, Scapparone, E, Schambach, J, Scheid, H S, Schiaua, C, Schicker, R, Schlepper, F, Schmah, A, Schmidt, C, Schmidt, M, Schmidt, N V, Schoengarth, J, Schotter, R, Schröter, A, Schukraft, J, Schweda, K, Scioli, G, Scomparin, E, Seger, J E, Sekiguchi, Y, Sekihata, D, Selina, M, Selyuzhenkov, I, Senyukov, S, Seo, J J, Serebryakov, D, Serkin, L, Šerkšnytė, L, Sevcenco, A, Shaba, T J, Shabetai, A, Shahoyan, R, Sharma, B, Sharma, D, Sharma, H, Sharma, M, Sharma, S, Sharma, T, Sharma, U, Sheibani, O, Shigaki, K, Shimomura, M, Shirinkin, S, Shou, Q, Sibiriak, Y, Siddhanta, S, Siemiarczuk, T, Silva, T F, Silva, W D, Silvermyr, D, Simantathammakul, T, Simeonov, R, Singh, B, Singh, B, Singh, K, Singh, R, Singh, R, Singh, S, Singh, V K, Singhal, V, Sinha, T, Sitar, B, Sitta, M, Skaali, T B, Skorodumovs, G, Smirnov, N, Smith, K L, Snellings, R J M, Solheim, E H, Sonnabend, C, Sonneveld, J M, Soramel, F, Soto-Hernandez, A B, Spijkers, R, Sporleder, C, Sputowska, I, Staa, J, Stachel, J, Stan, I, Stellhorn, T, Stiefelmaier, S F, Stocco, D, Storehaug, I, Strangmann, N J, Stratmann, P, Strazzi, S, Sturniolo, A, Suaide, A A P, Suire, C, Suiu, A, Sukhanov, M, Suljic, M, Sultanov, R, Sumberia, V, Sumowidagdo, S, Sundstrom, N B, Tabares, L H, Taghavi, S F, Takahashi, J, Tambave, G J, Tang, Z, Tanwar, J, Tapia Takaki, J D, Tapus, N, Tarasovicova, L A, Tarzila, M G, Tauro, A, Tavira García, A, Tejeda Muñoz, G, Terlizzi, L, Terrevoli, C, Thakur, D, Thakur, S, Thogersen, M, Thomas, D, Tiltmann, N, Timmins, A R, Toia, A, Tokumoto, R, Tomassini, S, Tomohiro, K, Topilskaya, N, Torres, V V, Trifiró, A, Triloki, T, Triolo, A S, Tripathy, S, Tripathy, T, Trogolo, S, Trubnikov, V, Trzaska, W H, Trzcinski, T P, Tsolanta, C, Tu, R, Tumkin, A, Turrisi, R, Tveter, T S, Ullaland, K, Ulukutlu, B, Upadhyaya, S, Uras, A, Urioni, M, Usai, G L, Vaid, M, Vala, M, Valle, N, van Doremalen, L V R, van Leeuwen, M, van Veen, C A, van Weelden, R J G, Varga, D, Varga, Z, Vargas Torres, P, Vasileiou, M, Vázquez Doce, O, Vazquez Rueda, O, Vechernin, V, Veen, P, Vercellin, E, Verma, R, Vértesi, R, Verweij, M, Vickovic, L, Vilakazi, Z, Villani, A, Vinogradov, A, Virgili, T, Virta, M M O, Vodopyanov, A, Völkl, M A, Voloshin, S A, Volpe, G, von Haller, B, Vorobyev, I, Vozniuk, N, Vrláková, J, Wan, J, Wang, C, Wang, D, Wang, Y, Wang, Y, Wang, Z, Weiglhofer, F, Wenzel, S C, Wessels, J P, Wiacek, P K, Wiechula, J, Wikne, J, Wilk, G, Wilkinson, J, Willems, G A, Windelband, B, Witte, J, Wojnar, M, Wright, J R, Wu, C T, Wu, W, Wu, Y, Xiong, K, Xiong, Z, Xu, L, Xu, R, Yadav, A, Yadav, A K, Yamaguchi, Y, Yang, S, Yang, S, Yano, S, Ye, Z, Yeats, E R, Yi, J, Yin, R, Yin, Z, Yoo, I K, Yoon, J H, Yu, H, Yuan, S, Yuncu, A, Zaccolo, V, Zampolli, C, Zanone, F, Zardoshti, N, Závada, P, Zhang, B, Zhang, C, Zhang, L, Zhang, M, Zhang, M, Zhang, S, Zhang, X, Zhang, Y, Zhang, Y, Zhang, Z, Zherebchevskii, V, Zhi, Y, Zhou, D, Zhou, Y, Zhu, J, Zhu, S, Zhu, Y, Zingaretti, A, Zugravel, S C & Zurlo, N 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, vol. 874, 140227. https://doi.org/10.1016/j.physletb.2026.140227