Two-pole structure of the D0*(2400)

被引：78

作者：

Albaladejo, Miguel ^{[1
,2
]}

Fernandez-Soler, Pedro ^{[1
]}

Guo, Feng-Kun ^{[3
,4
]}

Nieves, Juan ^{[1
]}

机构：

[1] Univ Valencia, Ctr Mixto CSIC, Inst Invest Paterna, Inst Fis Corpuscular IFIC, Aptd 22085, E-46071 Valencia, Spain

[2] Univ Murcia, Fac Quim, Dept Fis, E-30071 Murcia, Spain

[3] Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China

[4] Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China

来源：

PHYSICS LETTERS B | 2017年 / 767卷

关键词：

QUARK MASS DEPENDENCE; MESON RESONANCES; CHIRAL DYNAMICS; HEAVY MESONS; FORM-FACTORS; OPEN-CHARM; B-DECAYS; S MESONS; STATES; MODEL;

D O I：

10.1016/j.physletb.2017.02.036

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The so far only known charmed non-strange scalar meson is dubbed as D-0(*)(2400) in the Review of Particle Physics. We show, within the framework of unitarized chiral perturbation theory, that there are in fact two (I = 1/2, J(P) = 0(+)) poles in the region of the D-0(*)( 2400) in the coupled-channel D pi, D eta and D-s (K) over bar scattering amplitudes. With all the parameters previously fixed, we predict the energy levels for the coupled-channel system in a finite volume, and find that they agree remarkably well with recent lattice QCD calculations. This successful description of the lattice data is regarded as a strong evidence for the two-pole structure of the D-0(*)( 2400). With the physical quark masses, the poles are located at (2105(-8)(+6) - i102(-12)(+10)) MeV and (2451(-26)(+36) - i134(-8)(+7)) MeV, with the largest couplings to the D pi and D-s (K) over bar channels, respectively. Since the higher pole is close to the D-s (K) over bar threshold, we expect it to show up as a threshold enhancement in the D-s (K) over bar invariant mass distribution. This could be checked by high-statistic data in future experiments. We also show that the lower pole belongs to the same SU(3) multiplet as the D-s0(*)(2317) state. Predictions for partners in the bottom sector are also given. (C) 2017 Published by Elsevier B.V.

引用

页码：465 / 469

页数：5

共 83 条

[1] Search for Structure in the Bs0π± Invariant Mass Spectrum [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. ;

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. ;

Babuschkin, I. ;

Bachmann, S. ;

Back, J. J. ;

Badalov, A. ;

Baesso, C. ;

Baker, S. ;

Baldini, W. ;

Barlow, R. J. ;

Barschel, C. ;

Barsuk, S. ;

Barter, W. ;

Batozskaya, V. ;

Batsukh, B. ;

Battista, V. ;

Bay, A. ;

Beaucourt, L. ;

Beddow, J. ;

Bedeschi, F. ;

Bediaga, I. ;

Bel, L. J. .

PHYSICAL REVIEW LETTERS, 2016, 117 (15)

[2] Amplitude analysis of B0 → (D)over-bar0K+π- 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. ;

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. ;

Belyaev, I. ;

Ben-Haim, E. ;

Bencivenni, G. .

PHYSICAL REVIEW D, 2015, 92 (01)

[3] Evidence for a Bs0π± State [J].

Abazov, V. M. ;

Abbott, B. ;

Acharya, B. S. ;

Adams, M. ;

Adams, T. ;

Agnew, J. P. ;

Alexeev, G. D. ;

Alkhazov, G. ;

Alton, A. ;

Askew, A. ;

Atkins, S. ;

Augsten, K. ;

Aushev, V. ;

Aushev, Y. ;

Avila, C. ;

Badaud, F. ;

Bagby, L. ;

Baldin, B. ;

Bandurin, D. V. ;

Banerjee, S. ;

Barberis, E. ;

Baringer, P. ;

Bartlett, J. F. ;

Bassler, U. ;

Bazterra, V. ;

Bean, A. ;

Begalli, M. ;

Bellantoni, L. ;

Beri, S. B. ;

Bernardi, G. ;

Bernhard, R. ;

Bertram, I. ;

Besancon, M. ;

Beuselinck, R. ;

Bhat, P. C. ;

Bhatia, S. ;

Bhatnagar, V. ;

Blazey, G. ;

Blessing, S. ;

Bloom, K. ;

Boehnlein, A. ;

Boline, D. ;

Boos, E. E. ;

Borissov, G. ;

Borysova, M. ;

Brandt, A. ;

Brandt, O. ;

Brochmann, M. ;

Brock, R. ;

Bross, A. .

PHYSICAL REVIEW LETTERS, 2016, 117 (02)

[4] Study of B-→D**0π-(D**0→D(*)+π-) decays -: art. no. 112002 [J].

Abe, K ;

Abe, T ;

Adachi, I ;

Aihara, H ;

Akatsu, M ;

Asano, Y ;

Aso, T ;

Aushev, T ;

Bakich, AM ;

Ban, Y ;

Banas, E ;

Banerjee, S ;

Bay, A ;

Bedny, I ;

Behera, PK ;

Bizjak, I ;

Blyth, S ;

Bondar, A ;

Bracko, M ;

Brodzicka, J ;

Browder, TE ;

Casey, BCK ;

Chang, P ;

Chao, Y ;

Chen, KF ;

Cheon, BG ;

Chistov, R ;

Choi, SK ;

Choi, Y ;

Choi, YK ;

Danilov, M ;

Dong, LY ;

Drutskoy, A ;

Eidelman, S ;

Eiges, V ;

Enari, Y ;

Fukunaga, C ;

Gabyshev, N ;

Garmash, A ;

Gershon, T ;

Golob, B ;

Guo, R ;

Hagner, C ;

Handa, F ;

Hara, T ;

Hayashii, H ;

Hazumi, M ;

Higuchi, T ;

Hinz, L .

PHYSICAL REVIEW D, 2004, 69 (11)

[5]

Albaladejo M, 2016, EUR PHYS J C, V76, DOI 10.1140/epjc/s10052-016-4144-3

[6] Size of the σ meson and its nature [J].

Albaladejo, M. ;

Oller, J. A. .

PHYSICAL REVIEW D, 2012, 86 (03)

[7] Can X(5568) be described as a Bsπ, B(K)over-bar resonant state? [J].

Albaladejo, Miguel ;

Nieves, Juan ;

Oset, Eulogio ;

Sun, Zhi-Feng ;

Liu, Xiang .

PHYSICS LETTERS B, 2016, 757 :515-519

[8]

[Anonymous], ARXIV14127515HEPEX

[9] The role of D☆☆ in B-→Ds+K-π- [J].

Antipin, Oleg ;

Valencia, G. .

PHYSICS LETTERS B, 2007, 647 (2-3) :164-172

[10]

Aoki S., ARXIV160700299HEPLAT

← 1 2 3 4 5 6 7 8 9 →