Doubly charmed Ξcc molecular states from meson-baryon interaction

被引：24

作者：

Dias, J. M. ^{[1
,2
,3
,4
]}

Debastiani, V. R. ^{[1
,2
,3
]}

Xie, Ju-Jun ^{[1
]}

Oset, E. ^{[1
,2
,3
]}

机构：

[1] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China

[2] Univ Valencia, CSIC, Inst Invest Paterna, Dept Fis Teor,Ctr Mixto, Aptdo 22085, Valencia 46071, Spain

[3] Univ Valencia, CSIC, Inst Invest Paterna, IFIC,Ctr Mixto, Aptdo 22085, Valencia 46071, Spain

[4] Univ Sao Paulo, Inst Fis, CP 66318, BR-05389970 Sao Paulo, SP, Brazil

来源：

PHYSICAL REVIEW D | 2018年 / 98卷 / 09期

基金：

巴西圣保罗研究基金会; 中国国家自然科学基金;

关键词：

CHIRAL DYNAMICS; LAGRANGIANS;

D O I：

10.1103/PhysRevD.98.094017

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Stimulated by the new experimental LHCb findings associated with the Omega(c) states, some of which we have described in a previous work as being dynamically generated through meson-baryon interaction, we have extended this approach to make predictions for new Xi(cc) molecular states in the C = 2, S = 0, and I = 1/2 sector. These states manifest themselves as poles in the solution of the Bethe-Salpeter equation in coupled channels. The kernels of this equation were obtained using general Lagrangians coming from the hidden local gauge symmetry or massive Yang-Mills theory, and the interactions are dominated by the exchange of light vector mesons. The extension of this approach to the heavy sector stems from the realization that the dominant interaction corresponds to having the heavy quarks as spectators, which implies the preservation of the heavy quark symmetry. As a result, we get several states: three states from the pseudoscalar meson-baryon interaction with J(P) = 1/2(-), and masses around 3840, 4080 and 4090 MeV, and two at 3920 and 4150 MeV for J(P) = 3/2(-). Furthermore, from the vector meson-baryon interaction we get three states degenerate with J(P) 1/2(-) and 3/2(-) from 4220 MeV to 4290 MeV, and two more states around 4280 and 4370 MeV, degenerate with J(P) = 1/2(-), 3/2(-), and 5/2(-).

引用

页数：11

共 62 条

[1] Observation of the Doubly Charmed Baryon Ξcc++ [J].

Aaij, R. ;

Adeva, B. ;

Adinolfi, M. ;

Ajaltouni, Z. ;

Akar, S. ;

Albrecht, J. ;

Alessio, F. ;

Alexander, M. ;

Albero, A. Alfonso ;

Ali, S. ;

Alkhazov, G. ;

Cartelle, P. Alvarez ;

Amato, S. ;

Amerio, S. ;

Amhis, Y. ;

An, L. ;

Anderlini, L. ;

Andreassi, G. ;

Andreotti, M. ;

Andrews, J. E. ;

Appleby, R. B. ;

Archilli, F. ;

d'Argent, P. ;

Romeu, J. Arnau ;

Artamonov, A. ;

Artuso, M. ;

Aslanides, E. ;

Auriemma, G. ;

Baalouch, M. ;

Babuschkin, I. ;

Bachmann, S. ;

Back, J. J. ;

Badalov, A. ;

Baesso, C. ;

Baker, S. ;

Balagura, V. ;

Baldini, W. ;

Baranov, A. ;

Barlow, R. J. ;

Barschel, C. ;

Barsuk, S. ;

Barter, W. ;

Baryshnikov, F. ;

Batozskaya, V. ;

Battista, V. ;

Bay, A. ;

Beaucourt, L. ;

Beddow, J. ;

Bedeschi, F. ;

Bediaga, I. .

PHYSICAL REVIEW LETTERS, 2017, 119 (11)

[2] Observation of Five New Narrow Ωc0 States Decaying to Ξc+K- [J].

Aaij, R. ;

Adeva, B. ;

Adinolfi, M. ;

Ajaltouni, Z. ;

Akar, S. ;

Albrecht, J. ;

Alessio, F. ;

Alexander, M. ;

Ali, S. ;

Alkhazov, G. ;

Cartelle, P. Alvarez ;

Alves, A. A., Jr. ;

Amato, S. ;

Amerio, S. ;

Amhis, Y. ;

An, L. ;

Anderlini, L. ;

Andreassi, G. ;

Andreotti, M. ;

Andrews, J. E. ;

Appleby, R. B. ;

Archilli, F. ;

d'Argent, P. ;

Romeu, J. Arnau ;

Artamonov, A. ;

Artuso, M. ;

Aslanides, E. ;

Auriemma, G. ;

Baalouch, M. ;

Babuschkin, I. ;

Bachmann, S. ;

Back, J. J. ;

Badalov, A. ;

Baesso, C. ;

Baker, S. ;

Balagura, V. ;

Baldini, W. ;

Baranov, A. ;

Barlow, R. J. ;

Barschel, C. ;

Barsuk, S. ;

Barter, W. ;

Baryshnikov, F. ;

Baszczyk, M. ;

Batozskaya, V. ;

Batsukh, B. ;

Battista, V. ;

Bay, A. ;

Beaucourt, L. ;

Beddow, J. .

PHYSICAL REVIEW LETTERS, 2017, 118 (18)

[3] Evidence for Exotic Hadron Contributions to Λb0 → J/ψpπ- Decays [J].

Aaij, R. ;

Beteta, C. Abellan ;

Adeva, B. ;

Adinolfi, M. ;

Ajaltouni, Z. ;

Akar, S. ;

Albrecht, J. ;

Alessio, F. ;

Alexander, M. ;

Ali, S. ;

Alkhazov, G. ;

Cartelle, P. Alvarez ;

Alves, A. A., Jr. ;

Amato, S. ;

Amerio, S. ;

Amhis, Y. ;

An, L. ;

Anderlini, L. ;

Andreassi, G. ;

Andreotti, M. ;

Andrews, J. E. ;

Appleby, R. B. ;

Gutierrez, O. Aquines ;

Archilli, F. ;

d'Argent, P. ;

Romeu, J. Arnau ;

Artamonov, A. ;

Artuso, M. ;

Aslanides, E. ;

Auriemma, G. ;

Baalouch, M. ;

Bachmann, S. ;

Back, J. J. ;

Badalov, A. ;

Baesso, C. ;

Baldini, W. ;

Barlow, R. J. ;

Barschel, C. ;

Barsuk, S. ;

Barter, W. ;

Batozskaya, V. ;

Battista, V. ;

Bay, A. ;

Beaucourt, L. ;

Beddow, J. ;

Bedeschi, F. ;

Bediaga, I. ;

Bel, L. J. ;

Bellee, V. ;

Belloli, N. .

PHYSICAL REVIEW LETTERS, 2016, 117 (08)

[4] Model-Independent Evidence for J/ψp Contributions to Λb0 → J/ψpK- Decays [J].

Aaij, R. ;

Beteta, C. Abellan ;

Adeva, B. ;

Adinolfi, M. ;

Ajaltouni, Z. ;

Akar, S. ;

Albrecht, J. ;

Alessio, F. ;

Alexander, M. ;

Ali, S. ;

Alkhazov, G. ;

Cartelle, P. Alvarez ;

Alves, A. A., Jr. ;

Amato, S. ;

Amerio, S. ;

Amhis, Y. ;

An, L. ;

Anderlini, L. ;

Andreassi, G. ;

Andreotti, M. ;

Andrews, J. E. ;

Appleby, R. B. ;

Gutierrez, O. Aquines ;

Archilli, F. ;

d'Argent, P. ;

Artamonov, A. ;

Artuso, M. ;

Aslanides, E. ;

Auriemma, G. ;

Baalouch, M. ;

Bachmann, S. ;

Back, J. J. ;

Badalov, A. ;

Baesso, C. ;

Baker, S. ;

Baldini, W. ;

Barlow, R. J. ;

Barschel, C. ;

Barsuk, S. ;

Barter, W. ;

Batozskaya, V. ;

Battista, V. ;

Bay, A. ;

Beaucourt, L. ;

Beddow, J. ;

Bedeschi, F. ;

Bediaga, I. ;

Bel, L. J. ;

Bellee, V. ;

Belloli, N. .

PHYSICAL REVIEW LETTERS, 2016, 117 (08)

[5] Observation of J/ψp Resonances Consistent with Pentaquark States in Λb0 → J/ψK-p Decays [J].

Aaij, R. ;

Adeva, B. ;

Adinolfi, M. ;

Affolder, A. ;

Ajaltouni, Z. ;

Akar, S. ;

Albrecht, J. ;

Alessio, F. ;

Alexander, M. ;

Ali, S. ;

Alkhazov, G. ;

Cartelle, P. Alvarez ;

Alves, A. A., Jr. ;

Amato, S. ;

Amerio, S. ;

Amhis, Y. ;

An, L. ;

Anderlini, L. ;

Anderson, J. ;

Andreassi, G. ;

Andreotti, M. ;

Andrews, J. E. ;

Appleby, R. B. ;

Gutierrez, O. Aquines ;

Archilli, F. ;

d'Argent, P. ;

Artamonov, A. ;

Artuso, M. ;

Aslanides, E. ;

Auriemma, G. ;

Baalouch, M. ;

Bachmann, S. ;

Back, J. J. ;

Badalov, A. ;

Baesso, C. ;

Baldini, W. ;

Barlow, R. J. ;

Barschel, C. ;

Barsuk, S. ;

Barter, W. ;

Batozskaya, V. ;

Battista, V. ;

Bay, A. ;

Beaucourt, L. ;

Beddow, J. ;

Bedeschi, F. ;

Bediaga, I. ;

Bel, L. J. ;

Bellee, V. ;

Belloli, N. .

PHYSICAL REVIEW LETTERS, 2015, 115 (07)

[6]

AAIJ R, 2013, JHEP, V1312

[7] Hyperfine mixing in b → c semileptonic decay of doubly heavy baryons [J].

Albertus, C. ;

Hernandez, E. ;

Nieves, J. .

PHYSICS LETTERS B, 2010, 683 (01) :21-25

[8]

Aubert B, 2006, PHYS REV D, V74, DOI [10.1103/PhysRevD.74.011103, 10.1103/PhysRevD.74.091103]

[9] NONLINEAR REALIZATION AND HIDDEN LOCAL SYMMETRIES [J].

BANDO, M ;

KUGO, T ;

YAMAWAKI, K .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1988, 164 (4-5) :217-314

[10] Establishing low-lying doubly charmed baryons [J].

Chen, Hua-Xing ;

Mao, Qiang ;

Chen, Wei ;

Liu, Xiang ;

Zhu, Shi-Lin .

PHYSICAL REVIEW D, 2017, 96 (03)

← 1 2 3 4 5 6 7 →