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Matches in SemOpenAlex for { <https://semopenalex.org/work/W4200577978> ?p ?o ?g. }

• W4200577978 abstract "A bstract This paper presents the prospects for a precise measurement of the branching fraction of the leptonic $$ {B}_c^{+} $$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:msubsup> <mml:mi>B</mml:mi> <mml:mi>c</mml:mi> <mml:mo>+</mml:mo> </mml:msubsup> </mml:math> → τ + ν τ decay at the Future Circular Collider (FCC-ee) running at the Z -pole. A detailed description of the simulation and analysis framework is provided. To select signal candidates, two Boosted Decision Tree algorithms are employed and optimised. The first stage suppresses inclusive $$ boverline{b} $$ <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> , $$ coverline{c} $$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mi>c</mml:mi> <mml:mover> <mml:mi>c</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:math> , and $$ qoverline{q} $$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mi>q</mml:mi> <mml:mover> <mml:mi>q</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:math> backgrounds using event-based topological information. A second stage utilises the properties of the hadronic τ + → π + π + π − $$ overline{nu} $$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mover> <mml:mi>ν</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:math> τ decay to further suppress these backgrounds, and is also found to achieve high rejection for the B + → τ + ν τ background. The number of $$ {B}_c^{+} $$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:msubsup> <mml:mi>B</mml:mi> <mml:mi>c</mml:mi> <mml:mo>+</mml:mo> </mml:msubsup> </mml:math> → τ + ν τ candidates is estimated for various Tera- Z scenarios, and the potential precision of signal yield and branching fraction measurements evaluated. The phenomenological impact of such measurements on various New Physics scenarios is also explored." @default.
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• W4200577978 date "2021-12-01" @default.
• W4200577978 modified "2023-10-06" @default.
• W4200577978 title "Prospects for $$ {B}_c^{+} $$→ τ +ντ at FCC-ee" @default.
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• W4200577978 doi "https://doi.org/10.1007/jhep12(2021)133" @default.
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