Measurement of the energy dependence of the e+e− → $$ B\overline{B} $$, $$ B{\overline{B}}^{\ast } $$ and $$ {B}^{\ast }{\overline{B}}^{\ast } $$ exclusive cross sections
説明
<jats:title>A<jats:sc>bstract</jats:sc> </jats:title><jats:p>We report the first measurement of the exclusive cross sections <jats:italic>e</jats:italic><jats:sup>+</jats:sup><jats:italic>e</jats:italic><jats:sup><jats:italic>−</jats:italic></jats:sup> → <jats:inline-formula><jats:alternatives><jats:tex-math>$$ B\overline{B} $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>B</mml:mi> <mml:mover> <mml:mi>B</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:math></jats:alternatives></jats:inline-formula>, <jats:italic>e</jats:italic><jats:sup>+</jats:sup><jats:italic>e</jats:italic><jats:sup><jats:italic>−</jats:italic></jats:sup> → <jats:inline-formula><jats:alternatives><jats:tex-math>$$ B{\overline{B}}^{\ast } $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>B</mml:mi> <mml:msup> <mml:mover> <mml:mi>B</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> <mml:mo>∗</mml:mo> </mml:msup> </mml:math></jats:alternatives></jats:inline-formula>, and <jats:italic>e</jats:italic><jats:sup>+</jats:sup><jats:italic>e</jats:italic><jats:sup><jats:italic>−</jats:italic></jats:sup> → <jats:inline-formula><jats:alternatives><jats:tex-math>$$ {B}^{\ast }{\overline{B}}^{\ast } $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mi>B</mml:mi> <mml:mo>∗</mml:mo> </mml:msup> <mml:msup> <mml:mover> <mml:mi>B</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> <mml:mo>∗</mml:mo> </mml:msup> </mml:math></jats:alternatives></jats:inline-formula> in the energy range from 10<jats:italic>.</jats:italic>63 GeV to 11<jats:italic>.</jats:italic>02 GeV. The <jats:italic>B</jats:italic> mesons are fully reconstructed in a large number of hadronic final states and the three channels are identified using a beam-constrained-mass variable. The shapes of the exclusive cross sections show oscillatory behavior with several maxima and minima. The results are obtained using data collected by the Belle experiment at the KEKB asymmetric-energy <jats:italic>e</jats:italic><jats:sup>+</jats:sup><jats:italic>e</jats:italic><jats:sup><jats:italic>−</jats:italic></jats:sup> collider.</jats:p>
収録刊行物
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- Journal of High Energy Physics
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Journal of High Energy Physics 2021 (6), 2021-06
Springer Science and Business Media LLC
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キーワード
- Upsilon(10570): electroproduction
- final state: ((n)jet)
- B: hadronic decay
- e+-e− Experiments
- Quarkonium
- FOS: Physical sciences
- BELLE
- QC770-798
- electron positron: annihilation
- Particle and resonance production
- 530
- High Energy Physics - Experiment
- energy dependence
- High Energy Physics - Experiment (hep-ex)
- KEK-B
- e+-e��� Experiments
- Nuclear and particle physics. Atomic energy. Radioactivity
- [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
- info:eu-repo/classification/ddc/530
- Spectroscopy
- B: pair production
- Physics
- ddc:530
- e +-e − Experiments
- electron positron: colliding beams
- 541
- Upsilon(10870): electroproduction
- 10.63-11.02 GeV-cms
- channel cross section: measured
- experimental results
詳細情報 詳細情報について
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- CRID
- 1360584345415826048
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- ISSN
- 10298479
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- データソース種別
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- Crossref
- OpenAIRE