Correlation function for the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>T</mml:mi><mml:mrow><mml:mi>b</mml:mi><mml:mi>b</mml:mi></mml:mrow></mml:msub></mml:math> state: Determination of the binding, scattering lengths, effective ranges, and molecular probabilities

Abstract

We perform a study of the <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msup><a:mi>B</a:mi><a:mrow><a:mo>*</a:mo><a:mo>+</a:mo></a:mrow></a:msup><a:msup><a:mi>B</a:mi><a:mn>0</a:mn></a:msup><a:mo>,</a:mo><a:msup><a:mi>B</a:mi><a:mrow><a:mo>*</a:mo><a:mn>0</a:mn></a:mrow></a:msup><a:msup><a:mi>B</a:mi><a:mo>+</a:mo></a:msup></a:math> correlation functions using an extension of the local hidden gauge approach which provides the interaction from the exchange of light vector mesons and gives rise to a bound state of these components in <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mi>I</c:mi><c:mo>=</c:mo><c:mn>0</c:mn></c:math> with a binding energy of about 21 MeV. After that, we face the inverse problem of determining the low energy observables, scattering length and effective range for each channel, the possible existence of a bound state, and, if found, the couplings of such a state to each <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"><e:msup><e:mi>B</e:mi><e:mrow><e:mo>*</e:mo><e:mo>+</e:mo></e:mrow></e:msup><e:msup><e:mi>B</e:mi><e:mn>0</e:mn></e:msup><e:mo>,</e:mo><e:msup><e:mi>B</e:mi><e:mrow><e:mo>*</e:mo><e:mn>0</e:mn></e:mrow></e:msup><e:msup><e:mi>B</e:mi><e:mo>+</e:mo></e:msup></e:math> component as well as the molecular probabilities of each of the channels. We use the bootstrap method to determine these magnitudes and find that, with errors in the correlation function typical of present experiments, we can determine all these magnitudes with acceptable precision. In addition, the size of the source function of the experiment from where the correlation functions are measured can be also determined with a high precision. Published by the American Physical Society 2024

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