Strong and radiative decays of the doubly charmed baryons

被引：73

作者：

Xiao, Li-Ye ^{[1
,2
,3
]}

Wang, Kai-Lei ^{[4
,5
]}

Lu, Qi-Fang ^{[4
,5
,6
]}

Zhong, Xian-Hui ^{[4
,5
,6
]}

Zhu, Shi-Lin ^{[1
,2
,3
,7
]}

机构：

[1] Peking Univ, Sch Phys, Beijing 100871, Peoples R China

[2] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China

[3] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China

[4] Hunan Normal Univ, Dept Phys, Changsha 410081, Hunan, Peoples R China

[5] Hunan Normal Univ, Minist Educ, Key Lab Low Dimens Quantum Struct & Quantum Contr, Changsha 410081, Hunan, Peoples R China

[6] Hunan Normal Univ, SICQEA, Changsha 410081, Hunan, Peoples R China

[7] Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China

来源：

PHYSICAL REVIEW D | 2017年 / 96卷 / 09期

基金：

中国国家自然科学基金;

关键词：

HEAVY BARYONS; SEMILEPTONIC DECAYS; ETA-PHOTOPRODUCTION; QUARK-MODEL; NUCLEONS;

D O I：

10.1103/PhysRevD.96.094005

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have systematically studied the strong and radiative decays of the low-lying 1P-wave doubly charmed baryons. Some interesting observations are: (i) The states. Xi*(cc) and Omega*(cc) with J(P) = 3/2(+) have a fairly large decay rate into the Xi(cc)gamma and Omega(cc)gamma channels with a width similar to 15 and similar to 7 keV, respectively. (ii) The lowest lying excited doubly charmed baryons are dominated by the 1P. mode excitations, which should be quite narrow states. They decay into the ground state with J(P) = 1/2(+) through the radiative transitions with a significant ratio. (iii) The total decay widths of the first orbital excitations of lambda mode (1P(lambda) states with J(P) = 1/2(-), 3/2(-), 5/2(-)) are about Gamma similar to 100 MeV, and the ratio between the radiative and hadronic decay widths is about O(10(-3)).

引用

页数：11

共 75 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] Static properties and semileptonic decays of doubly heavy baryons in a nonrelativistic quark model (vol 32, pg 183, 2007) [J].

Albertus, C. ;

Hernandez, E. ;

Nieves, J. ;

Verde-Velasco, J. M. .

EUROPEAN PHYSICAL JOURNAL A, 2008, 36 (01) :119-119

[3] Static properties and semileptonic decays of doubly heavy baryons in a nonrelativistic quark model [J].

Albertus, C. ;

Hernandez, E. ;

Nieves, J. ;

Verde-Velasco, J. M. .

EUROPEAN PHYSICAL JOURNAL A, 2007, 32 (02) :183-199

[4] 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

[5] Radiative M1 transitions of heavy baryons in the bag model [J].

Bernotas, A. ;

Simonis, V. .

PHYSICAL REVIEW D, 2013, 87 (07)

[6] Radiative decays of double heavy baryons in a relativistic constituent three-quark model including hyperfine mixing effects [J].

Branz, Tanja ;

Faessler, Amand ;

Gutsche, Thomas ;

Ivanov, Mikhail A. ;

Koerner, Juergen G. ;

Lyubovitskij, Valery E. ;

Oexl, Bettina .

PHYSICAL REVIEW D, 2010, 81 (11)

[7] ELECTROMAGNETIC INTERACTIONS OF COMPOSITE SYSTEMS [J].

BRODSKY, SJ ;

PRIMACK, JR .

ANNALS OF PHYSICS, 1969, 52 (02) :315-&

[8] Charmed bottom baryon spectroscopy from lattice QCD [J].

Brown, Zachary S. ;

Detmold, William ;

Meinel, Stefan ;

Orginos, Kostas .

PHYSICAL REVIEW D, 2014, 90 (09)

[9] 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)

[10] Spectrum and electromagnetic transitions of bottomonium [J].

Deng, Wei-Jun ;

Liu, Hui ;

Gui, Long-Cheng ;

Zhong, Xian-Hui .

PHYSICAL REVIEW D, 2017, 95 (07)

← 1 2 3 4 5 6 7 8 →