☆ 4.7 Article

IGJPC=1-1-+ tetraquark states

PHYSICAL REVIEW D (2008)

期刊

PHYSICAL REVIEW D

卷 78, 期 5, 页码 -

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AMER PHYSICAL SOC

DOI: 10.1103/PhysRevD.78.054017

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Astronomy & Astrophysics Physics, Particles & Fields

资金

National Natural Science Foundation of China [10625521, 10721063]
Ministry of Education of China
Ministry of Education, Culture, Science and Technology, Japan [19540297]
Grants-in-Aid for Scientific Research [19540297] Funding Source: KAKEN

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We study the tetraquark states with I(G)J(PC) = 1(-)1(-+) in the QCD sum rule. After exhausting all possible flavor structures, we analyze both the Shifman-Vainshtein-Zakharov (SVZ) and finite energy sum rules. Both approaches lead to a mass around 1.6 GeV for the state with the quark contents qq (q) over bar(q) over bar, and around 2.0 GeV for the state with the quark contents qs (q) over bar(s) over tilde. The flavor structure ((3) over bar circle times (6) over bar) circle plus (6 circle times 3) is preferred. Our analysis strongly indicates that both pi(1)(1600) and pi(1)(2015) are also compatible with the exotic tetraquark interpretation, which are sometimes labeled as candidates of the 1(-+) hybrid mesons. Moreover one of their dominant decay modes is a pair of axial- vector and pseudoscalar mesons such as b(1)(1235)pi, which is sometimes considered as the characteristic decay mode of the hybrid mesons.

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Hidden charm tetraquark states in a diquark model

Pan-Pan Shi, Fei Huang, Wen-Ling Wang

Summary: The study investigates the mass spectrum of hidden charm tetraquark states within a diquark model and systematically calculates the masses of various possible tetraquark states. The results confirm the composition of several known tetraquark states and provide predictions for other possible tetraquark states.

PHYSICAL REVIEW D (2021)

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Article Multidisciplinary Sciences

Study of the doubly charmed tetraquark Tcc+

R. Aaij, A. S. W. Abdelmotteleb, C. Abellan Beteta, F. J. Abudinen Gallego, T. Ackernley, B. Adeva, M. Adinolfi, H. Afsharnia, C. Agapopoulou, C. A. Aidala, S. Aiola, Z. Ajaltouni, S. Akar, J. Albrecht, F. Alessio, M. Alexander, A. Alfonso Albero, Z. Aliouche, G. Alkhazov, P. Alvarez Cartelle, S. Amato, J. L. Amey, Y. Amhis, L. An, L. Anderlini, A. Andreianov, M. Andreotti, F. Archilli, A. Artamonov, M. Artuso, K. Arzymatov, E. Aslanides, M. Atzeni, B. Audurier, S. Bachmann, M. Bachmayer, J. J. Back, P. Baladron Rodriguez, V Balagura, W. Baldini, J. Baptista Leite, M. Barbetti, R. J. Barlow, S. Barsuk, W. Barter, M. Bartolini, F. Baryshnikov, J. M. Basels, S. Bashir, G. Bassi, B. Batsukh, A. Battig, A. Bay, A. Beck, M. Becker, F. Bedeschi, I Bediaga, A. Beiter, V Belavin, S. Belin, V Bellee, K. Belous, I Belov, I Belyaev, G. Bencivenni, E. Ben-Haim, A. Berezhnoy, R. Bernet, D. Berninghoff, H. C. Bernstein, C. Bertella, A. Bertolin, C. Betancourt, F. Betti, Ia Bezshyiko, S. Bhasin, J. Bhom, L. Bian, M. S. Bieker, S. Bifani, P. Billoir, M. Birch, F. C. R. Bishop, A. Bitadze, A. Bizzeti, M. Bjorn, M. P. Blago, T. Blake, F. Blanc, S. Blusk, D. Bobulska, J. A. Boelhauve, O. Boente Garcia, T. Boettcher, A. Boldyrev, A. Bondar, N. Bondar, S. Borghi, M. Borisyak, M. Borsato, J. T. Borsuk, S. A. Bouchiba, T. J. Bowcock, A. Boyer, C. Bozzi, M. J. Bradley, S. Braun, A. Brea Rodriguez, J. Brodzicka, A. Brossa Gonzalo, D. Brundu, A. Buonaura, L. Buonincontri, A. T. Burke, C. Burr, A. Bursche, A. Butkevich, J. S. Butter, J. Buytaert, W. Byczynski, S. Cadeddu, H. Cai, R. Calabrese, L. Calefice, L. Calero Diaz, S. Cali, R. Calladine, M. Calvi, M. Calvo Gomez, P. Camargo Magalhaes, P. Campana, A. F. Campoverde Quezada, S. Capelli, L. Capriotti, A. Carbone, G. Carboni, R. Cardinale, A. Cardini, I Carli, P. Carniti, L. Carus, K. Carvalho Akiba, A. Casais Vidal, G. Casse, M. Cattaneo, G. Cavallero, S. Celani, J. Cerasoli, D. Cervenkov, A. J. Chadwick, M. G. Chapman, M. Charles, Ph Charpentier, G. Chatzikonstantinidis, C. A. Chavez Barajas, M. Chefdeville, C. Chen, S. Chen, A. Chernov, V Chobanova, S. Cholak, M. Chrzaszcz, A. Chubykin, V Chulikov, P. Ciambrone, M. F. Cicala, X. Cid Vidal, G. Ciezarek, P. E. L. Clarke, M. Clemencic, H. Cliff, J. Closier, J. L. Cobbledick, V Coco, J. A. B. Coelho, J. Cogan, E. Cogneras, L. Cojocariu, P. Collins, T. Colombo, L. Congedo, A. Contu, N. Cooke, G. Coombs, I Corredoira, G. Corti, C. M. Costa Sobral, B. Couturier, D. C. Craik, J. Crkovska, M. Cruz Torres, R. Currie, C. L. Da Silva, S. Dadabaev, L. Dai, E. Dall'Occo, J. Dalseno, C. D'Ambrosio, A. Danilina, P. D'Argent, J. E. Davies, A. Davis, O. De Aguiar Francisco, K. De Bruyn, S. De Capua, M. De Cian, J. M. De Miranda, L. De Paula, M. De Serio, D. De Simone, P. De Simone, F. De Vellis, J. A. de Vries, C. T. Dean, F. Debernardis, D. Decamp, V Dedu, L. Del Buono, B. Delaney, H-P Dembinski, A. Dendek, V Denysenko, D. Derkach, O. Deschamps, F. Desse, F. Dettori, B. Dey, A. Di Cicco, P. Di Nezza, S. Didenko, L. Dieste Maronas, H. Dijkstra, V Dobishuk, C. Dong, A. M. Donohoe, F. Dordei, A. C. dos Reis, L. Douglas, A. Dovbnya, A. G. Downes, M. W. Dudek, L. Dufour, V Duk, P. Durante, J. M. Durham, D. Dutta, A. Dziurda, A. Dzyuba, S. Easo, U. Egede, V Egorychev, S. Eidelman, S. Eisenhardt, S. Ek-In, L. Eklund, S. Ely, A. Ene, E. Epple, S. Escher, J. Eschle, S. Esen, T. Evans, A. Falabella, J. Fan, Y. Fan, B. Fang, S. Farry, D. Fazzini, M. Feo, A. Fernandez Prieto, A. D. Fernez, F. Ferrari, L. Ferreira Lopes, F. Ferreira Rodrigues, S. Ferreres Sole, M. Ferrillo, M. Ferro-Luzzi, S. Filippov, R. A. Fini, M. Fiorini, M. Firlej, K. M. Fischer, D. S. Fitzgerald, C. Fitzpatrick, T. Fiutowski, A. Fkiaras, F. Fleuret, M. Fontana, F. Fontanelli, R. Forty, D. Foulds-Holt, V. Franco Lima, M. Franco Sevilla, M. Frank, E. Franzoso, G. Frau, C. Frei, D. A. Friday, J. Fu, Q. Fuehring, E. Gabriel, G. Galati, A. Gallas Torreira, D. Galli, S. Gambetta, Y. Gan, M. Gandelman, P. Gandini, Y. Gao, M. Garau, L. M. Garcia Martin, P. Garcia Moreno, J. Garcia Pardinas, B. Garcia Plana, F. A. Garcia Rosales, L. Garrido, C. Gaspar, R. E. Geertsema, D. Gerick, L. L. Gerken, E. Gersabeck, M. Gersabeck, T. Gershon, D. Gerstel, L. Giambastiani, V Gibson, H. K. Giemza, A. L. Gilman, M. Giovannetti, A. Gioventu, P. Gironella Gironell, L. Giubega, C. Giugliano, K. Gizdov, E. L. Gkougkousis, V. V. Gligorov, C. Gobel, E. Golobardes, D. Golubkov, A. Golutvin, A. Gomes, S. Gomez Fernandez, F. Goncalves Abrantes, M. Goncerz, G. Gong, P. Gorbounov, I. Gorelov, C. Gotti, E. Govorkova, J. P. Grabowski, T. Grammatico, L. A. Granado Cardoso, E. Grauges, E. Graverini, G. Graziani, A. Grecu, L. M. Greeven, N. A. Grieser, L. Grillo, S. Gromov, B. R. Gruberg Cazon, C. Gu, M. Guarise, M. Guittiere, P. A. Gunther, E. Gushchin, A. Guth, Y. Guz, T. Gys, T. Hadavizadeh, G. Haefeli, C. Haen, J. Haimberger, T. Halewood-leagas, P. M. Hamilton, J. P. Hammerich, Q. Han, X. Han, T. H. Hancock, E. B. Hansen, S. Hansmann-Menzemer, N. Harnew, T. Harrison, C. Hasse, M. Hatch, J. He, M. Hecker, K. Heijhoff, K. Heinicke, A. M. Hennequin, K. Hennessy, L. Henry, J. Heuel, A. Hicheur, D. Hill, M. Hilton, S. E. Hollitt, R. Hou, Y. Hou, J. Hu, J. Hu, W. Hu, X. Hu, W. Huang, X. Huang, W. Hulsbergen, R. J. Hunter, M. Hushchyn, D. Hutchcroft, D. Hynds, P. Ibis, M. Idzik, D. Ilin, P. Ilten, A. Inglessi, A. Ishteev, K. Ivshin, R. Jacobsson, H. Jage, S. Jakobsen, E. Jans, B. K. Jashal, A. Jawahery, V Jevtic, F. Jiang, M. John, D. Johnson, C. R. Jones, T. P. Jones, B. Jost, N. Jurik, S. H. Kalavan Kadavath, S. Kandybei, Y. Kang, M. Karacson, M. Karpov, F. Keizer, D. M. Keller, M. Kenzie, T. Ketel, B. Khanji, A. Kharisova, S. Kholodenko, T. Kirn, V. S. Kirsebom, O. Kitouni, S. Klaver, N. Kleijne, K. Klimaszewski, M. R. Kmiec, S. Koliiev, A. Kondybayeva, A. Konoplyannikov, P. Kopciewicz, R. Kopecna, P. Koppenburg, M. Korolev, I Kostiuk, O. Kot, S. Kotriakhova, P. Kravchenko, L. Kravchuk, R. D. Krawczyk, M. Kreps, F. Kress, S. Kretzschmar, P. Krokovny, W. Krupa, W. Krzemien, M. Kucharczyk, V Kudryavtsev, H. S. Kuindersma, G. J. Kunde, T. Kvaratskheliya, D. Lacarrere, G. Lafferty, A. Lai, A. Lampis, D. Lancierini, J. J. Lane, R. Lane, G. Lanfranchi, C. Langenbruch, J. Langer, O. Lantwin, T. Latham, F. Lazzari, R. Le Gac, S. H. Lee, R. Lefevre, A. Leflat, S. Legotin, O. Leroy, T. Lesiak, B. Leverington, H. Li, P. Li, S. Li, Y. Li, Z. Li, X. Liang, T. Lin, R. Lindner, V Lisovskyi, R. Litvinov, G. Liu, H. Liu, Q. Liu, S. Liu, A. Lobo Salvia, A. Loi, J. Lomba Castro, I Longstaff, J. H. Lopes, S. Lopez Solino, G. H. Lovell, Y. Lu, C. Lucarelli, D. Lucchesi, S. Luchuk, M. Lucio Martinez, V Lukashenko, Y. Luo, A. Lupato, E. Luppi, O. Lupton, A. Lusiani, X. Lyu, L. Ma, R. Ma, S. Maccolini, F. Machefert, F. Maciuc, V Macko, P. Mackowiak, S. Maddrell-Mander, O. Madejczyk, L. R. Madhan Mohan, O. Maev, A. Maevskiy, D. Maisuzenko, M. W. Majewski, J. J. Malczewski, S. Malde, B. Malecki, A. Malinin, T. Maltsev, H. Malygina, G. Manca, G. Mancinelli, D. Manuzzi, D. Marangotto, J. Maratas, J. F. Marchand, U. Marconi, S. Mariani, C. Marin Benito, M. Marinangeli, J. Marks, A. M. Marshall, P. J. Marshall, G. Martelli, G. Martellotti, L. Martinazzoli, M. Martinelli, D. Martinez Santos, F. Martinez Vidal, A. Massafferri, M. Materok, R. Matev, A. Mathad, V Matiunin, C. Matteuzzi, K. R. Mattioli, A. Mauri, E. Maurice, J. Mauricio, M. Mazurek, M. McCann, L. Mcconnell, T. H. Mcgrath, N. T. Mchugh, A. McNab, R. McNulty, J. Mead, B. Meadows, G. Meier, N. Meinert, D. Melnychuk, S. Meloni, M. Merk, A. Merli, L. Meyer Garcia, M. Mikhasenko, D. A. Milanes, E. Millard, M. Milovanovic, M-N Minard, A. Minotti, L. Minzoni, S. E. Mitchell, B. Mitreska, D. S. Mitzel, A. Moedden, R. A. Mohammed, R. D. Moise, S. Mokhnenko, T. Mombacher, I. A. Monroy, S. Monteil, M. Morandin, G. Morello, M. J. Morello, J. Moron, A. B. Morris, A. G. Morris, R. Mountain, H. Mu, F. Muheim, M. Mulder, D. Mueller, K. Mueller, C. H. Murphy, D. Murray, P. Muzzetto, P. Naik, T. Nakada, R. Nandakumar, T. Nanut, I Nasteva, M. Needham, I Neri, N. Neri, S. Neubert, N. Neufeld, R. Newcombe, E. M. Niel, S. Nieswand, N. Nikitin, N. S. Nolte, C. Normand, C. Nunez, A. Oblakowska-Mucha, V Obraztsov, T. Oeser, D. P. O'Hanlon, S. Okamura, R. Oldeman, F. Oliva, M. E. Olivares, C. J. G. Onderwater, R. H. O'neil, J. M. Otalora Goicochea, T. Ovsiannikova, P. Owen, A. Oyanguren, K. O. Padeken, B. Pagare, P. R. Pais, T. Pajero, A. Palano, M. Palutan, Y. Pan, G. Panshin, A. Papanestis, M. Pappagallo, L. L. Pappalardo, C. Pappenheimer, W. Parker, C. Parkes, B. Passalacqua, G. Passaleva, A. Pastore, M. Patel, C. Patrignani, C. J. Pawley, A. Pearce, A. Pellegrino, M. Pepe Altarelli, S. Perazzini, D. Pereima, A. Pereiro Castro, P. Perret, M. Petric, K. Petridis, A. Petrolini, A. Petrov, S. Petrucci, M. Petruzzo, T. T. H. Pham, L. Pica, M. Piccini, B. Pietrzyk, G. Pietrzyk, M. Pili, D. Pinci, F. Pisani, M. Pizzichemi, P. K. Resmi, V Placinta, J. Plews, M. Plo Casasus, F. Polci, M. Poli Lener, M. Poliakova, A. Poluektov, N. Polukhina, I Polyakov, E. Polycarpo, S. Ponce, D. Popov, S. Popov, S. Poslavskii, K. Prasanth, L. Promberger, C. Prouve, V Pugatch, V Puill, H. Pullen, G. Punzi, H. Qi, W. Qian, J. Qin, N. Qin, R. Quagliani, B. Quintana, N. Raab, R. I. Rabadan Trejo, B. Rachwal, J. H. Rademacker, M. Rama, M. Ramos Pernas, M. S. Rangel, F. Ratnikov, G. Raven, M. Reboud, F. Redi, F. Reiss, C. Remon Alepuz, Z. Ren, V Renaudin, R. Ribatti, S. Ricciardi, K. Rinnert, P. Robbe, G. Robertson, A. B. Rodrigues, E. Rodrigues, J. A. Rodriguez Lopez, E. R. R. Rodriguez Rodriguez, A. Rollings, P. Roloff, V Romanovskiy, M. Romero Lamas, A. Romero Vidal, J. D. Roth, M. Rotondo, M. S. Rudolph, T. Ruf, R. A. Ruiz Fernandez, J. Ruiz Vidal, A. Ryzhikov, J. Ryzka, J. J. Saborido Silva, N. Sagidova, N. Sahoo, B. Saitta, M. Salomoni, C. Sanchez Gras, R. Santacesaria, C. Santamarina Rios, M. Santimaria, E. Santovetti, D. Saranin, G. Sarpis, M. Sarpis, A. Sarti, C. Satriano, A. Satta, M. Saur, D. Savrina, H. Sazak, L. G. Scantlebury Smead, A. Scarabotto, S. Schael, S. Scherl, M. Schiller, H. Schindler, M. Schmelling, B. Schmidt, S. Schmitt, O. Schneider, A. Schopper, M. Schubiger, S. Schulte, M. H. Schune, R. Schwemmer, B. Sciascia, S. Sellam, A. Semennikov, M. Senghi Soares, A. Sergi, N. Serra, L. Sestini, A. Seuthe, Y. Shang, D. M. Shangase, M. Shapkin, I Shchemerov, L. Shchutska, T. Shears, L. Shekhtman, Z. Shen, V Shevchenko, E. B. Shields, Y. Shimizu, E. Shmanin, J. D. Shupperd, B. G. Siddi, R. Silva Coutinho, G. Simi, S. Simone, N. Skidmore, T. Skwarnicki, M. W. Slater, I Slazyk, J. C. Smallwood, J. G. Smeaton, A. Smetkina, E. Smith, M. Smith, A. Snoch, M. Soares, L. Soares Lavra, M. D. Sokoloff, F. J. P. Soler, A. Solovev, I Solovyev, F. L. Souza De Almeida, B. Souza De Paula, B. Spaan, E. Spadaro Norella, P. Spradlin, F. Stagni, M. Stahl, S. Stahl, S. Stanislaus, O. Steinkamp, O. Stenyakin, H. Stevens, S. Stone, M. Straticiuc, D. Strekalina, F. Suljik, J. Sun, L. Sun, Y. Sun, P. Svihra, P. N. Swallow, K. Swientek, A. Szabelski, T. Szumlak, M. Szymanski, S. Taneja, A. R. Tanner, M. D. Tat, A. Terentev, F. Teubert, E. Thomas, D. J. D. Thompson, K. A. Thomson, V Tisserand, S. T'Jampens, M. Tobin, L. Tomassetti, X. Tong, D. Torres Machado, D. Y. Tou, E. Trifonova, C. Trippl, G. Tuci, A. Tully, N. Tuning, A. Ukleja, D. J. Unverzagt, E. Ursov, A. Usachov, A. Ustyuzhanin, U. Uwer, A. Vagner, V. Vagnoni, A. Valassi, G. Valenti, N. Valls Canudas, M. van Beuzekom, M. Van Dijk, E. van Herwijnen, C. B. Van Hulse, M. van Veghel, R. Vazquez Gomez, P. Vazquez Regueiro, C. Vazquez Sierra, S. Vecchi, J. J. Velthuis, M. Veltri, A. Venkateswaran, M. Veronesi, M. Vesterinen, D. Vieira, M. Vieites Diaz, H. Viemann, X. Vilasis-Cardona, E. Vilella Figueras, A. Villa, P. Vincent, F. C. Volle, D. Vom Bruch, A. Vorobyev, V. Vorobyev, N. Voropaev, K. Vos, R. Waldi, J. Walsh, C. Wang, J. Wang, J. Wang, J. Wang, R. Wang, Y. Wang, Z. Wang, Z. Wang, Z. Wang, J. A. Ward, N. K. Watson, S. G. Weber, D. Websdale, C. Weisser, B. D. C. Westhenry, D. J. White, M. Whitehead, A. R. Wiederhold, D. Wiedner, G. Wilkinson, M. Wilkinson, I Williams, M. Williams, M. R. J. Williams, F. F. Wilson, W. Wislicki, M. Witek, L. Witola, G. Wormser, S. A. Wotton, H. Wu, K. Wyllie, Z. Xiang, D. Xiao, Y. Xie, A. Xu, J. Xu, L. Xu, M. Xu, Q. Xu, Z. Xu, Z. Xu, D. Yang, S. Yang, Y. Yang, Z. Yang, Z. Yang, Y. Yao, L. E. Yeomans, H. Yin, J. Yu, X. Yuan, O. Yushchenko, E. Zaffaroni, M. Zavertyaev, M. Zdybal, O. Zenaiev, M. Zeng, D. Zhang, L. Zhang, S. Zhang, S. Zhang, Y. Zhang, Y. Zhang, A. Zharkova, A. Zhelezov, Y. Zheng, T. Zhou, X. Zhou, Y. Zhou, V Zhovkovska, X. Zhu, X. Zhu, Z. Zhu, V Zhukov, J. B. Zonneveld, Q. Zou, S. Zucchelli, D. Zuliani, G. Zunica

Summary: This study reports the discovery of a narrow exotic state in the (DD0)-D-0 pi(+) mass spectrum, which is consistent with a tetraquark state with specific quark content and spin-parity quantum numbers. The study also reveals an unexpected dependence of the production rate on track multiplicity.

NATURE COMMUNICATIONS (2022)

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Article Physics, Particles & Fields

Resonance X (7300): excited 2S tetraquark or hadronic molecule χc1χc1?

S. S. Agaev, K. Azizi, B. Barsbay, H. Sundu

Summary: In this article, we explore the first radial excitation X-4c(& lowast;) of the fully charmed diquark-antidiquark state X-4c=cccc built of axial-vector components, and the hadronic molecule M=chi c1 chi c1. The masses and current couplings of these scalar states are calculated using the QCD two-point sum rule approach, and their full widths are evaluated by considering their kinematically allowed decay channels. Partial widths of these processes are found using the strong couplings g(i )(& lowast;) and G(i)(& lowast;) at the X-4c(& lowast;)(M)-conventional mesons vertices computed by means of the QCD three-point sum rule method. The obtained predictions for the parameters m=(7235 +/- 75) MeV, Gamma=(144 +/- 18) MeV and m=(7180 +/- 120) MeV, Gamma=(169 +/- 21) MeV of these structures are compared with experimental data, suggesting that both the excited tetraquark and hadronic molecule can be considered as candidates for the resonance X(7300). However, detailed analysis demonstrates that the preferable model for X(7300) is a hybrid involving the molecule M and a substantial part of X-4c(& lowast;).

EUROPEAN PHYSICAL JOURNAL C (2023)

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Article Physics, Particles & Fields

Spectrum of the S-wave fully-heavy tetraquark states

Jie Zhang, Jin-Bao Wang, Gang Li, Chun-Sheng An, Cheng-Rong Deng, Ju-Jun Xie

Summary: This study systematically investigates the fully heavy tetraquark states using a nonrelativistic constituent quark model, taking into account the instanton-induced and one-gluon exchange interactions. The results show the existence of specific states at certain energy ranges. It suggests that the newly observed X(6900) state by LHCb may be an excited state, while the reported X(6600) state by CMS and ATLAS may be a ground state tetraquark.

EUROPEAN PHYSICAL JOURNAL C (2022)

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Article Astronomy & Astrophysics

Towards the understanding of fully-heavy tetraquark states from various models

Chengrong Deng, Hong Chen, Jialun Ping

Summary: The study reveals that the color-magnetic interaction model cannot fully absorb QCD dynamical effects, and the Coulomb interaction plays a critical role in dynamical model calculations for heavy quarks. Different color configurations dominate in the ground and excited states of the states investigated.

PHYSICAL REVIEW D (2021)

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Article Agronomy

Can 'relative culm wall thickness' be used to evaluate the lodging resistance of rice?

Zhen-Zhen Li, Fei Deng, Chi Zhang, Li Zhu, Lian-Hua He, Tao Zhou, Hui Lu, Shi-Lin Zhu, Yu-Ling Zeng, Xiao-Yuan Zhong, Wei Zhou, Yong Chen, Wan-Jun Ren, Jian-Feng Hu

Summary: A simple and low-cost index, called relative culm wall thickness (RCWT), is proposed to evaluate the lodging resistance of rice. Through a field experiment, RCWT was found to be significantly correlated with various lodging-related indexes. Rice plants with high RCWT were characterized by lower plant height and center of gravity, as well as shorter basal internodes, thicker culm wall thickness, and smaller pith diameter. These features increased the fullness of the stem, resulting in higher cellulose and lignin content, enhanced bending resistance, and decreased lodging index.

ARCHIVES OF AGRONOMY AND SOIL SCIENCE (2023)

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Review Physics, Multidisciplinary

An updated review of the new hadron states

Hua-Xing Chen, Wei Chen, Xiang Liu, Yan-Rui Liu, Shi-Lin Zhu

Summary: The past decades have seen significant advancements in hadron physics, particularly in the observation of excited open heavy flavor mesons and baryons since 2017. This review provides updated information on the recent experimental and theoretical developments in this field, including the observation of unconventional heavy hadrons, tetraquark states, and hidden heavy flavor multiquark states. Additionally, the review covers progress in understanding glueballs and light hybrid mesons, which are manifestations of the non-Abelian SU(3) gauge interaction in Quantum Chromodynamics at low energies.

REPORTS ON PROGRESS IN PHYSICS (2023)

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Review Environmental Sciences

Simultaneous nitrification, denitrification and phosphorus removal: What have we done so far and how do we need to do in the future?

Tong Wu, Shan-Shan Yang, Le Zhong, Ji-Wei Pang, Luyan Zhang, Xue-Fen Xia, Fan Yang, Guo-Jun Xie, Bing-Feng Liu, Nan-Qi Ren, Jie Ding

Summary: This paper provides a comprehensive review of studies on simultaneous nitrogen and phosphorus removal. The most promising process is found to be simultaneous nitrification, denitrification, and phosphorus removal (SNDPR). Factors influencing SNDPR are analyzed and future research directions are suggested, including balancing microbial competition, achieving continuous flow operation, and maximizing phosphorus recovery.

SCIENCE OF THE TOTAL ENVIRONMENT (2023)

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Review Cell & Tissue Engineering

Research Progress of Three-Dimensional Bioprinting Artificial Cardiac Tissue

Xin Mao, Zhehui Wang

Summary: Cardiovascular disease is a major threat to human life and health, and heart transplantation is the most effective treatment. However, the shortage of living heart organs has always been an issue. With the development of bioprinting technology, 3D bioprinted hearts have become a promising solution, and research in this field has become a hot topic.

TISSUE ENGINEERING AND REGENERATIVE MEDICINE (2023)

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Article Physics, Particles & Fields

The investigations of the P-wave Bs states combining quark model and lattice QCD in the coupled channel framework

Zhi Yang, Guang-Juan Wang, Jia-Jun Wu, Makoto Oka, Shi-Lin Zhu

Summary: In this study, we investigated the near-threshold P-wave B-s states using the Hamiltonian effective field theory, combining the quark model, the quark-pair-creation mechanism and B-(*)(K) over bar interaction. By fitting the lattice data and applying the heavy quark flavor symmetry, we determined all the parameters in the D-s sector. The predicted masses of the bottom-strange partners of the D-30*(2317) and D-31*(2460) are consistent with lattice QCD simulation. We also observed a crossing point in the finite volume spectrum, which corresponds to a CDD zero in the B(K) over bar scattering T-matrix, providing further insights into the near-threshold states.

JOURNAL OF HIGH ENERGY PHYSICS (2023)

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Article Physics, Multidisciplinary

QCD sum rule study on the fully strange tetraquark states of JPC=2++

Rui-Rui Dong, Niu Su, Hua-Xing Chen, Er-Liang Cui

Summary: We applied the QCD sum rule method to study fully strange tetraquark states with J(PC) = 2(++) systematically. Both diquark-antidiquark and mesonic-mesonic currents were constructed, and their correlation functions were calculated. Three mixing currents that were nearly non-correlated were further constructed based on the obtained results. One of the mixing currents was used to extract the mass of the lowest-lying state, which was found to be 2.03(+0.16) (-0.15) GeV. This supports the interpretation of f(2)(2010) as a fully strange tetraquark state with J(PC) = 2(++), which was observed by BESIII in the phi phi channel. We propose to confirm this state in the eta((')) eta((')) channel.

FRONTIERS IN PHYSICS (2023)

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Proceedings Paper Physics, Particles & Fields

Molecular tetraquarks and pentaquarks in chiral effective field theory

Bo Wang, Lu Meng, Shi-Lin Zhu

Summary: In this study, we investigated di-hadron interactions including D (D) over bar*/D*(D) over bar, D*(D) over bar, DsD*/D*D-s, BB*/BB* and B*B* in chiral effective field theory (chi EFT) up to next-to-leading (NLO) order. The tetraquark states Z(c)(3900), Z(c)(4020), Z(cs)(3985), Z(b)(10610), Z(b)(10650) above threshold can be explained as corresponding di-hadron resonances. We also studied the interactions of Sigma(()(c)*) (D) over bar(*) to investigate the three hidden-charm pentaquarks Pc(4312), Pc(4440) and Pc(4457). Using the parameters fixed from the Pc states, we predicted possible molecular states in Xi D-c* Xi cD* and Xi & lowast; c recently observed by the LHCb Collaboration. Our predictions of the Xi D-c(*) bound states are in good agreement with two new near-threshold structures.

NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS (2023)

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Article Astronomy & Astrophysics

Ground state baryons in the flux-tube three-body confinement model using diffusion Monte Carlo

Yao Ma, Lu Meng, Yan-Ke Chen, Shi-Lin Zhu

Summary: In this article, we use a systematic diffusion Monte Carlo (DMC) calculation to study the ground state baryons under two confinement scenarios. We demonstrate a feasible procedure to investigate few-quark states with possible confinement mechanisms, which can be extended to multiquark states easily. Our results show that both pairwise and three-body confinement mechanisms can describe the experimental data well if the parameters are chosen properly. We also obtain the real ground state of the ccc over bar c over bar system starting from diquark-antidiquark spin-color channels alone.

PHYSICAL REVIEW D (2023)

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Article Astronomy & Astrophysics

Light double-gluon hybrid states with the exotic quantum numbers JPC=1-+ and 3-+

Niu Su, Wei-Han Tan, Hua-Xing Chen, Wei Chen, Shi-Lin Zhu

Summary: The QCD sum rule method was used to study double-gluon hybrid states with quark-gluon contents q over bar qgg (q 1/4 u=d) and s over bar sgg. Twenty-eight double-gluon hybrid currents were constructed, with eleven of them found to be zero due to internal symmetries between the two gluon fields. The masses of nonvanishing currents with exotic quantum numbers JPC 1/4 1- thorn and 3- thorn were calculated to be Mjq over bar qgg;1- thorn i 1/4 4.35 thorn 0.26 and Mjs over bar sgg;3- thorn i 1/4 3.16 thorn 0.22-0.28 GeV. The decay behaviors of JPC 1/4 3- thorn states were studied, and their search in the xa1o1260 thorn =pco=00 channels in future particle experiments is proposed.

PHYSICAL REVIEW D (2023)

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Article Astronomy & Astrophysics

Light double-gluon hybrid states from QCD sum rules

Niu Su, Hua-Xing Chen, Wei Chen, Shi-Lin Zhu

Summary: We investigate the double-gluon hybrid states composed of quark-gluon contents q over bar qgg (q = u/d) and s over bar sgg. Twelve double-gluon hybrid currents with various quantum numbers are constructed, and five of them are found to be zero due to some internal symmetries. The remaining seven currents are used for QCD sum rule analyses. In particular, the masses of the double-gluon hybrid states with exotic quantum number JPC = 2+- are calculated to be Mlq over bar qgg;2+-) = 2.26+0.20 -0.25 GeV and Mls over bar sgg;2+-) = 2.38+0.19 -0.25 GeV. Their two-and three-meson decay patterns are also studied.

PHYSICAL REVIEW D (2023)

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Article Astronomy & Astrophysics

Double-charm and hidden-charm hexaquark states under the complex scaling method

Jian-Bo Cheng, Du-xin Zheng, Zi-Yang Lin, Shi-Lin Zhu

Summary: We investigate the double-charm and hidden-charm hexaquarks as molecular states using the one-boson-exchange potential model. We consider multichannel coupling and S-D wave mixing and use the complex scaling method to study quasibound states. We find a quasibound state in the double-charm system, but not in the hidden-charm system.

PHYSICAL REVIEW D (2023)

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Article Physics, Particles & Fields

Phase shifts of the light pseudoscalar meson and heavy meson scattering in heavy meson chiral perturbation theory

Bo-Lin Huang, Zi-Yang Lin, Kan Chen, Shi-Lin Zhu

Summary: We calculate the complete T matrices of elastic light pseudoscalar meson and heavy meson scattering to the third order in heavy meson chiral perturbation theory. We determine the low-energy constants by fitting the phase shifts and scattering lengths from lattice QCD simulations simultaneously, and predict the phase shifts at the physical meson masses. The strong phase shifts in various channels suggest the presence of bound states or resonances, including the well-known exotic state D-s0*(2317).

EUROPEAN PHYSICAL JOURNAL C (2023)

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Article Astronomy & Astrophysics

Double thresholds distort the line shapes of the P??s?4338?0 resonance

Lu Meng, Bo Wang, Shi-Lin Zhu

Summary: The LHCb Collaboration has recently observed the first hidden-charm pentaquark with strangeness, P?,yso4338 thorn 0. The state is close to the Xi 0c over bar D0 and Xi thorn c D- thresholds, raising concerns about the bias of the Breit-Wigner parametrization and its coupling to these double thresholds. Through qualitative and formalism-based analyses, it is shown that the peak of P?,yso4338 thorn 0 could originate from either an o-; thorn thorn sheet pole above the Xi thorn c D- threshold or an o-; - thorn sheet pole below the Xi 0c over bar D0 threshold. The authors suggest a refined experimental analysis considering unitarity and analyticity.

PHYSICAL REVIEW D (2023)

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