Decay widths of the excited Ωb baryons

被引：29

作者：

Agaev, S. S. ^{[1
]}

Azizi, K. ^{[2
,3
]}

Sundu, H. ^{[4
]}

机构：

[1] Baku State Univ, Inst Phys Problems, AZ-1148 Baku, Azerbaijan

[2] Inst Res Fundamental Sci IPM, Sch Phys, POB 19395-5531, Tehran, Iran

[3] Dogus Univ, Dept Phys, TR-34722 Istanbul, Turkey

[4] Kocaeli Univ, Dept Phys, TR-41380 Izmit, Turkey

来源：

PHYSICAL REVIEW D | 2017年 / 96卷 / 09期

关键词：

STRONG-COUPLING CONSTANTS; HEAVY BARYONS; MASSES; SPECTRA; MESONS;

D O I：

10.1103/PhysRevD.96.094011

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The LHCb Collaboration recently observed five narrow Omega(0)(c) resonances and measured their masses and widths through the decays Omega(0)(c) -> Xi(+)(c) K-. Motivated by this discovery, and also by the fact that the groundstate bottom baryon Omega(-)(b) with spin 1/2 was already found experimentally, we perform a theoretical investigation of the spin-1/2 and spin-3/2, Omega(b), baryons by calculating the decay width of their first orbitally and radially excited states to Xi(0)(b) K-. For this purpose, we employ the QCD sum rule method on the light cone by including in the analysis the K-meson distribution amplitudes up to twist 4. Obtained analytical expressions are utilized to extract parameters of these decay processes, which may be useful for forthcoming experimental studies of bottom baryons.

引用

页数：15

共 52 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] On the nature of the newly discovered Ω states [J].

Agaev, S. S. ;

Azizi, K. ;

Sundu, H. .

EPL, 2017, 118 (06)

[4]

Agaev SS, 2017, EUR PHYS J C, V77, DOI 10.1140/epjc/s10052-017-4953-z

[5] Radial excitations of the decuplet baryons [J].

Aliev, T. M. ;

Azizi, K. ;

Sundu, H. .

EUROPEAN PHYSICAL JOURNAL C, 2017, 77 (04)

[6] Strong coupling constants of heavy spin-3/2 baryons with light pseudoscalar mesons [J].

Aliev, T. M. ;

Azizi, K. ;

Savci, M. .

NUCLEAR PHYSICS A, 2011, 870-71 :58-71

[7] Vertices of the heavy spin-3/2 sextet baryons with light vector mesons in QCD [J].

Aliev, T. M. ;

Azizi, K. ;

Savci, M. .

EUROPEAN PHYSICAL JOURNAL A, 2011, 47 (10)

[8] Spin-3/2 to spin-1/2 heavy baryons and pseudoscalar mesons transitions in QCD [J].

Aliev, T. M. ;

Azizi, K. ;

Savci, M. .

EUROPEAN PHYSICAL JOURNAL C, 2011, 71 (06)

[9] Analysis of heavy spin-3/2 baryon-heavy spin-1/2 baryon-light vector meson vertices in QCD [J].

Aliev, T. M. ;

Azizi, K. ;

Savci, M. ;

Zamiralov, V. S. .

PHYSICAL REVIEW D, 2011, 83 (09)

[10] Heavy baryon-light vector meson couplings in QCD [J].

Aliev, T. M. ;

Azizi, K. ;

Savci, M. .

NUCLEAR PHYSICS A, 2011, 852 (01) :141-154

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