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Measurement of the |Vcb| element of the CKM matrix in tt¯ decays with the ATLAS detector.

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Τίτλος: Measurement of the |Vcb| element of the CKM matrix in tt¯ decays with the ATLAS detector.
Συγγραφείς: Aad, G., Aakvaag, E., Abbott, B., Abdelhameed, S., Abeling, K., Abicht, N. J., Abidi, S. H., Aboelela, M., Aboulhorma, A., Abramowicz, H., Acharya, B. S., Ackermann, A., Adam Bourdarios, C., Adamczyk, L., Addepalli, S. V., Addison, M. J., Adelman, J., Adiguzel, A., Adye, T., Affolder, A. A.
Πηγή: Journal of High Energy Physics; Jul2026, Vol. 2026 Issue 7, p1-51, 51p
Θεματικοί όροι: CKM matrix, Large Hadron Collider, Particle decays, Particle detectors, Quark decay
Περίληψη: The first measurement of the magnitude of the CKM quark mixing matrix element |Vcb| using on-shell W-boson decays is presented. The measurement is made with t t ¯ events from pp collision data corresponding to an integrated luminosity of 140 fb−1 at a centre-of-mass energy of 13 TeV collected by the ATLAS experiment at the Large Hadron Collider. A value of: V cb = 50 − 14 + 11 × 10 − 3 is measured, where the uncertainties have roughly equal contributions from the limited size of the data sample and from systematic effects. This is consistent with existing measurements made at much lower energy scales in B hadron decays. While the sensitivity does not yet rival that of previous determinations, this novel approach probes a very different physical situation, namely the rare hadronic t → b b ¯ c decay at high momentum-transfer, rather than semileptonic B decays at low momentum-transfer. [ABSTRACT FROM AUTHOR]
Copyright of Journal of High Energy Physics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  – Url: https://dx.doi.org/doi:10.1007/JHEP07%282026%29078
    Name: EDS - Springer Nature Journals (s7799221)
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DbLabel: Complementary Index
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PubTypeId: academicJournal
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IllustrationInfo
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  Label: Title
  Group: Ti
  Data: Measurement of the |V<subscript>cb</subscript>| element of the CKM matrix in tt¯ decays with the ATLAS detector.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Aad%2C+G%2E%22">Aad, G.</searchLink><br /><searchLink fieldCode="AR" term="%22Aakvaag%2C+E%2E%22">Aakvaag, E.</searchLink><br /><searchLink fieldCode="AR" term="%22Abbott%2C+B%2E%22">Abbott, B.</searchLink><br /><searchLink fieldCode="AR" term="%22Abdelhameed%2C+S%2E%22">Abdelhameed, S.</searchLink><br /><searchLink fieldCode="AR" term="%22Abeling%2C+K%2E%22">Abeling, K.</searchLink><br /><searchLink fieldCode="AR" term="%22Abicht%2C+N%2E+J%2E%22">Abicht, N. J.</searchLink><br /><searchLink fieldCode="AR" term="%22Abidi%2C+S%2E+H%2E%22">Abidi, S. H.</searchLink><br /><searchLink fieldCode="AR" term="%22Aboelela%2C+M%2E%22">Aboelela, M.</searchLink><br /><searchLink fieldCode="AR" term="%22Aboulhorma%2C+A%2E%22">Aboulhorma, A.</searchLink><br /><searchLink fieldCode="AR" term="%22Abramowicz%2C+H%2E%22">Abramowicz, H.</searchLink><br /><searchLink fieldCode="AR" term="%22Acharya%2C+B%2E+S%2E%22">Acharya, B. S.</searchLink><br /><searchLink fieldCode="AR" term="%22Ackermann%2C+A%2E%22">Ackermann, A.</searchLink><br /><searchLink fieldCode="AR" term="%22Adam+Bourdarios%2C+C%2E%22">Adam Bourdarios, C.</searchLink><br /><searchLink fieldCode="AR" term="%22Adamczyk%2C+L%2E%22">Adamczyk, L.</searchLink><br /><searchLink fieldCode="AR" term="%22Addepalli%2C+S%2E+V%2E%22">Addepalli, S. V.</searchLink><br /><searchLink fieldCode="AR" term="%22Addison%2C+M%2E+J%2E%22">Addison, M. J.</searchLink><br /><searchLink fieldCode="AR" term="%22Adelman%2C+J%2E%22">Adelman, J.</searchLink><br /><searchLink fieldCode="AR" term="%22Adiguzel%2C+A%2E%22">Adiguzel, A.</searchLink><br /><searchLink fieldCode="AR" term="%22Adye%2C+T%2E%22">Adye, T.</searchLink><br /><searchLink fieldCode="AR" term="%22Affolder%2C+A%2E+A%2E%22">Affolder, A. A.</searchLink>
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  Data: Journal of High Energy Physics; Jul2026, Vol. 2026 Issue 7, p1-51, 51p
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  Data: <searchLink fieldCode="DE" term="%22CKM+matrix%22">CKM matrix</searchLink><br /><searchLink fieldCode="DE" term="%22Large+Hadron+Collider%22">Large Hadron Collider</searchLink><br /><searchLink fieldCode="DE" term="%22Particle+decays%22">Particle decays</searchLink><br /><searchLink fieldCode="DE" term="%22Particle+detectors%22">Particle detectors</searchLink><br /><searchLink fieldCode="DE" term="%22Quark+decay%22">Quark decay</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The first measurement of the magnitude of the CKM quark mixing matrix element |V<subscript>cb</subscript>| using on-shell W-boson decays is presented. The measurement is made with t t ¯ events from pp collision data corresponding to an integrated luminosity of 140 fb<superscript>−1</superscript> at a centre-of-mass energy of 13 TeV collected by the ATLAS experiment at the Large Hadron Collider. A value of: V cb = 50 − 14 + 11 × 10 − 3 is measured, where the uncertainties have roughly equal contributions from the limited size of the data sample and from systematic effects. This is consistent with existing measurements made at much lower energy scales in B hadron decays. While the sensitivity does not yet rival that of previous determinations, this novel approach probes a very different physical situation, namely the rare hadronic t → b b ¯ c decay at high momentum-transfer, rather than semileptonic B decays at low momentum-transfer. [ABSTRACT FROM AUTHOR]
– Name: Abstract
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of High Energy Physics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=edb&AN=196096768
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        Value: 10.1007/JHEP07(2026)078
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        Text: English
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