We study the decays , , , , , , with , from the perspective of the being a molecular state made from the interaction of the , and components. We consider both the external and internal emission decay mechanisms and find an explanation for the and production rates, based on the mass difference of the charged and neutral components. We also find that the internal and external emission mechanisms add constructively in the , reactions, while they add destructively in the case of , reactions. This feature explains the decay widths of the present measurements and allows us to make predictions for the unmeasured modes of and . The future measurement of these decay modes will help us get a better perspective on the nature of the and the mechanisms present in production reactions of that state.
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"raw_name": "Wei-Hong Liang",
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"country": "China",
"value": "Department of Physics, Guangxi Normal University, Guilin 541004, China"
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"value": "Department of Physics, Guangxi Normal University, Guilin 541004, China"
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"surname": "Ban",
"given_names": "Ting",
"full_name": "Ban, Ting"
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{
"raw_name": "Eulogio Oset",
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"country": "China",
"value": "Department of Physics, Guangxi Normal University, Guilin 541004, China"
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"value": "Departamento de F\u00edsica Te\u00f3rica and IFIC, Centro Mixto Universidad de Valencia-CSIC Institutos de Investigaci\u00f3n de Paterna, Apartado 22085, 46071 Valencia, Spain"
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"title": "<math><mrow><msup><mrow><mover><mrow><mi>B</mi></mrow><mrow><mo>\u00af</mo></mrow></mover></mrow><mn>0</mn></msup><mo>\u2192</mo><msup><mrow><mover><mrow><mi>K</mi></mrow><mrow><mo>\u00af</mo></mrow></mover></mrow><mrow><mo>(</mo><mo>*</mo><mo>)</mo><mn>0</mn></mrow></msup><mi>X</mi></mrow></math>, <math><mrow><msup><mrow><mi>B</mi></mrow><mrow><mo>\u2212</mo></mrow></msup><mo>\u2192</mo><msup><mrow><mi>K</mi></mrow><mrow><mo>(</mo><mo>*</mo><mo>)</mo><mo>\u2212</mo></mrow></msup><mi>X</mi></mrow></math>, <math><mrow><msubsup><mrow><mover><mrow><mi>B</mi></mrow><mrow><mo>\u00af</mo></mrow></mover></mrow><mrow><mi>s</mi></mrow><mn>0</mn></msubsup><mo>\u2192</mo><mi>\u03b7</mi><mo>(</mo><msup><mrow><mi>\u03b7</mi></mrow><mrow><mo>\u2032</mo></mrow></msup><mo>,</mo><mtext> </mtext><mi>\u03d5</mi><mo>)</mo><mi>X</mi></mrow></math> from the <math><mrow><mi>X</mi><mo>(</mo><mn>3872</mn><mo>)</mo></mrow></math> molecular perspective"
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"value": "We study the decays <math><msup><mover><mi>B</mi><mo>\u00af</mo></mover><mn>0</mn></msup><mo>\u2192</mo><msup><mover><mi>K</mi><mo>\u00af</mo></mover><mn>0</mn></msup><mi>X</mi></math>, <math><msup><mi>B</mi><mo>\u2212</mo></msup><mo>\u2192</mo><msup><mi>K</mi><mo>\u2212</mo></msup><mi>X</mi></math>, <math><msubsup><mover><mi>B</mi><mo>\u00af</mo></mover><mi>s</mi><mn>0</mn></msubsup><mo>\u2192</mo><mi>\u03b7</mi><mo>(</mo><msup><mi>\u03b7</mi><mo>\u2032</mo></msup><mo>)</mo><mi>X</mi></math>, <math><msup><mover><mi>B</mi><mo>\u00af</mo></mover><mn>0</mn></msup><mo>\u2192</mo><msup><mover><mi>K</mi><mo>\u00af</mo></mover><mrow><mo>*</mo><mn>0</mn></mrow></msup><mi>X</mi></math>, <math><msup><mi>B</mi><mo>\u2212</mo></msup><mo>\u2192</mo><msup><mi>K</mi><mrow><mo>*</mo><mo>\u2212</mo></mrow></msup><mi>X</mi></math>, <math><msubsup><mover><mi>B</mi><mo>\u00af</mo></mover><mi>s</mi><mn>0</mn></msubsup><mo>\u2192</mo><mi>\u03d5</mi><mi>X</mi></math>, with <math><mi>X</mi><mo>\u2261</mo><mi>X</mi><mo>(</mo><mn>3872</mn><mo>)</mo></math>, from the perspective of the <math><mi>X</mi><mo>(</mo><mn>3872</mn><mo>)</mo></math> being a molecular state made from the interaction of the <math><msup><mi>D</mi><mrow><mo>*</mo><mo>+</mo></mrow></msup><msup><mi>D</mi><mo>\u2212</mo></msup><mo>,</mo><msup><mi>D</mi><mrow><mo>*</mo><mn>0</mn></mrow></msup><msup><mover><mi>D</mi><mo>\u00af</mo></mover><mn>0</mn></msup></math>, and <math><mrow><mi>c</mi><mo>.</mo><mi>c</mi><mo>.</mo></mrow></math> components. We consider both the external and internal emission decay mechanisms and find an explanation for the <math><msup><mover><mi>K</mi><mo>\u00af</mo></mover><mn>0</mn></msup><mi>X</mi></math> and <math><msup><mi>K</mi><mo>\u2212</mo></msup><mi>X</mi></math> production rates, based on the mass difference of the charged and neutral <math><msup><mi>D</mi><mo>*</mo></msup><mover><mi>D</mi><mo>\u00af</mo></mover></math> components. We also find that the internal and external emission mechanisms add constructively in the <math><msup><mover><mi>B</mi><mo>\u00af</mo></mover><mn>0</mn></msup><mo>\u2192</mo><msup><mover><mi>K</mi><mo>\u00af</mo></mover><mn>0</mn></msup><mi>X</mi></math>, <math><msup><mi>B</mi><mo>\u2212</mo></msup><mo>\u2192</mo><msup><mi>K</mi><mo>\u2212</mo></msup><mi>X</mi></math> reactions, while they add destructively in the case of <math><msup><mover><mi>B</mi><mo>\u00af</mo></mover><mn>0</mn></msup><mo>\u2192</mo><msup><mover><mi>K</mi><mo>\u00af</mo></mover><mrow><mo>*</mo><mn>0</mn></mrow></msup><mi>X</mi></math>, <math><msup><mi>B</mi><mo>\u2212</mo></msup><mo>\u2192</mo><msup><mi>K</mi><mrow><mo>*</mo><mo>\u2212</mo></mrow></msup><mi>X</mi></math> reactions. This feature explains the decay widths of the present measurements and allows us to make predictions for the unmeasured modes of <math><msubsup><mover><mi>B</mi><mo>\u00af</mo></mover><mi>s</mi><mn>0</mn></msubsup><mo>\u2192</mo><mi>\u03b7</mi><mo>(</mo><msup><mi>\u03b7</mi><mo>\u2032</mo></msup><mo>)</mo><mi>X</mi><mo>(</mo><mn>3872</mn><mo>)</mo></math> and <math><msup><mi>B</mi><mo>\u2212</mo></msup><mo>\u2192</mo><msup><mi>K</mi><mrow><mo>*</mo><mo>\u2212</mo></mrow></msup><mi>X</mi><mo>(</mo><mn>3872</mn><mo>)</mo></math>. The future measurement of these decay modes will help us get a better perspective on the nature of the <math><mi>X</mi><mo>(</mo><mn>3872</mn><mo>)</mo></math> and the mechanisms present in production reactions of that state."
}
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