Analysis of (1/2)<SUP>+</SUP> baryon states containing fourth-family quarks from QCD sum rules

YOU Fu-Yi; WANG Zhi-Gang; WAN Shao-Long

doi:10.1088/1674-1137/36/6/004

Chinese Physics C> 2012, Vol. 36> Issue(6) : 498-504 DOI: 10.1088/1674-1137/36/6/004

Analysis of (1/2)⁺ baryon states containing fourth-family quarks from QCD sum rules

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Abstract：
When the fourth generation of quarks have sufficiently small mixing with ordinary standard-model quarks, the hadrons made up from these quarks can be long-lived enough. We analyze the (1/2)⁺ baryon states containing fourth-generation quarks and standard-model quarks, i.e. the charm or bottom quarks, in the QCD sum rules approach. Considering the perturbative and two gluon condensate contributions in the calculation, we give the numerical results of the masses and pole residues.

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YOU Fu-Yi, WANG Zhi-Gang and WAN Shao-Long. Analysis of (1/2)⁺ baryon states containing fourth-family quarks from QCD sum rules[J]. Chinese Physics C, 2012, 36(6): 498-504. doi: 10.1088/1674-1137/36/6/004

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Received: 2011-08-31
Revised: 2011-10-08

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Analysis of (1/2)⁺ baryon states containing fourth-family quarks from QCD sum rules

Corresponding author: YOU Fu-Yi,

Received Date: 2011-08-31

Accepted Date: 2011-10-08

Available Online: 2012-06-05

Abstract: When the fourth generation of quarks have sufficiently small mixing with ordinary standard-model quarks, the hadrons made up from these quarks can be long-lived enough. We analyze the (1/2)⁺ baryon states containing fourth-generation quarks and standard-model quarks, i.e. the charm or bottom quarks, in the QCD sum rules approach. Considering the perturbative and two gluon condensate contributions in the calculation, we give the numerical results of the masses and pole residues.

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Analysis of (1/2)⁺ baryon states containing fourth-family quarks from QCD sum rules

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Analysis of (1/2)⁺ baryon states containing fourth-family quarks from QCD sum rules

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Analysis of (1/2)+ baryon states containing fourth-family quarks from QCD sum rules

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Analysis of (1/2)+ baryon states containing fourth-family quarks from QCD sum rules

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Analysis of (1/2)⁺ baryon states containing fourth-family quarks from QCD sum rules

Analysis of (1/2)⁺ baryon states containing fourth-family quarks from QCD sum rules