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• W3092279346 abstract "Abstract Inspired by the newly observed $$Omega _b$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:msub><mml:mi>Ω</mml:mi><mml:mi>b</mml:mi></mml:msub></mml:math> states by the LHCb Collaboration, we investigate the two-body strong decays of the low-lying $$lambda $$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mi>λ</mml:mi></mml:math> -mode $$Omega _b$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:msub><mml:mi>Ω</mml:mi><mml:mi>b</mml:mi></mml:msub></mml:math> baryons up to $$N=2$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mrow><mml:mi>N</mml:mi><mml:mo>=</mml:mo><mml:mn>2</mml:mn></mml:mrow></mml:math> shell using the chiral quark model within the j - j coupling scheme. Our results indicate that: (i) the newly observed states $$Omega _b(6316)^-$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mrow><mml:msub><mml:mi>Ω</mml:mi><mml:mi>b</mml:mi></mml:msub><mml:msup><mml:mrow><mml:mo>(</mml:mo><mml:mn>6316</mml:mn><mml:mo>)</mml:mo></mml:mrow><mml:mo>-</mml:mo></mml:msup></mml:mrow></mml:math> and $$Omega _b(6330)^-$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mrow><mml:msub><mml:mi>Ω</mml:mi><mml:mi>b</mml:mi></mml:msub><mml:msup><mml:mrow><mml:mo>(</mml:mo><mml:mn>6330</mml:mn><mml:mo>)</mml:mo></mml:mrow><mml:mo>-</mml:mo></mml:msup></mml:mrow></mml:math> are good candidates of the light spin $$j=1$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mrow><mml:mi>j</mml:mi><mml:mo>=</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:math> states, while the spin-parity $$J^P=1/2^-$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mrow><mml:msup><mml:mi>J</mml:mi><mml:mi>P</mml:mi></mml:msup><mml:mo>=</mml:mo><mml:mn>1</mml:mn><mml:mo>/</mml:mo><mml:msup><mml:mn>2</mml:mn><mml:mo>-</mml:mo></mml:msup></mml:mrow></mml:math> and $$J^P=3/2^-$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mrow><mml:msup><mml:mi>J</mml:mi><mml:mi>P</mml:mi></mml:msup><mml:mo>=</mml:mo><mml:mn>3</mml:mn><mml:mo>/</mml:mo><mml:msup><mml:mn>2</mml:mn><mml:mo>-</mml:mo></mml:msup></mml:mrow></mml:math> cannot be distinguished. The other two states, $$Omega _b(6340)$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mrow><mml:msub><mml:mi>Ω</mml:mi><mml:mi>b</mml:mi></mml:msub><mml:mrow><mml:mo>(</mml:mo><mml:mn>6340</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:mrow></mml:math> and $$Omega _b(6350)$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mrow><mml:msub><mml:mi>Ω</mml:mi><mml:mi>b</mml:mi></mml:msub><mml:mrow><mml:mo>(</mml:mo><mml:mn>6350</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:mrow></mml:math> mostly correspond to the light spin $$j=2$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mrow><mml:mi>j</mml:mi><mml:mo>=</mml:mo><mml:mn>2</mml:mn></mml:mrow></mml:math> states, while the spin-parity $$J^P=3/2^-$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mrow><mml:msup><mml:mi>J</mml:mi><mml:mi>P</mml:mi></mml:msup><mml:mo>=</mml:mo><mml:mn>3</mml:mn><mml:mo>/</mml:mo><mml:msup><mml:mn>2</mml:mn><mml:mo>-</mml:mo></mml:msup></mml:mrow></mml:math> and $$J^P=5/2^-$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mrow><mml:msup><mml:mi>J</mml:mi><mml:mi>P</mml:mi></mml:msup><mml:mo>=</mml:mo><mml:mn>5</mml:mn><mml:mo>/</mml:mo><mml:msup><mml:mn>2</mml:mn><mml:mo>-</mml:mo></mml:msup></mml:mrow></mml:math> cannot be distinguished as well. (ii) The 2 S states with spin-parity $$J^P=1/2^+$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mrow><mml:msup><mml:mi>J</mml:mi><mml:mi>P</mml:mi></mml:msup><mml:mo>=</mml:mo><mml:mn>1</mml:mn><mml:mo>/</mml:mo><mml:msup><mml:mn>2</mml:mn><mml:mo>+</mml:mo></mml:msup></mml:mrow></mml:math> and $$J^P=3/2^+$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mrow><mml:msup><mml:mi>J</mml:mi><mml:mi>P</mml:mi></mml:msup><mml:mo>=</mml:mo><mml:mn>3</mml:mn><mml:mo>/</mml:mo><mml:msup><mml:mn>2</mml:mn><mml:mo>+</mml:mo></mml:msup></mml:mrow></mml:math> , respectively, might be narrow states with a width of $$Gamma <2$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mrow><mml:mi>Γ</mml:mi><mml:mo><</mml:mo><mml:mn>2</mml:mn></mml:mrow></mml:math> MeV. (iii) The 1 D states are not broad and the total decay widths vary from several to dozens of MeV, which have a good potential to be observed in future experiments." @default.
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• W3092279346 title "Possible interpretation of the newly observed $$Omega _b$$ states" @default.
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