Novel approaches to determine B± and B0 meson production fractions

被引：0

作者：

Bernlochner, Florian ^{[1
]}

Jung, Martin ^{[2
,3
]}

Khan, Munira ^{[1
]}

Landsberg, Greg ^{[4
]}

Ligeti, Zoltan ^{[5
]}

机构：

[1] Rheinische Friedrich Wilhelms Univ Bonn, Phys Inst, D-53115 Bonn, Germany

[2] Univ Torino, Dipartimento Fis, I-10125 Turin, Italy

[3] INFN, Sez Torino, I-10125 Turin, Italy

[4] Brown Univ, Dept Phys, Providence, RI 02912 USA

[5] Univ Calif Berkeley, Ernest Orlando Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW D | 2024年 / 110卷 / 01期

关键词：

RELATIVE YIELD; DECAY; RATIO;

D O I：

10.1103/PhysRevD.110.014007

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We propose novel methods to determine Gamma(4S) -> B+B- and Gamma(4S) -> B-0(B) over bar (0) decay rates. The precision to which they and their ratio are known yields at present a limiting uncertainty around 2% in measurements of absolute B decay rates, and thus in a variety of applications, such as precision determinations of elements of the Cabibbo-Kobayashi-Maskawa matrix and flavor-symmetry relations. The new methods we propose are based in one case on exploiting the Gamma(5S) datasets, in the other case on the different average number of charged tracks in B-perpendicular to and B-0 decays. We estimate future sensitivities using these methods and discuss possible measurements of f(d)/f(u) at the (HL-)LHC.

引用

页数：10

共 30 条

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Artuso, M.
Arzymatov, K.
Aslanides, E.
Atzeni, M.
Audurier, B.
Bachmann, S.
Back, J. J.
Baker, S.
Balagura, V
Baldini, W.
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Barlow, R. J.
Barsuk, S.
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Ajaltouni, Z.
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Albrecht, J.
Alessio, F.
Alexander, M.
Alfonso Albero, A.
Alkhazov, G.
Alvarez Cartelle, P.
Alves Jr, A. A.
Amato, S.
Amerio, S.
Amhis, Y.
An, L.
Anderlini, L.
Andreassi, G.
Andreotti, M.
Andrews, J. E.
Appleby, R. B.
Archilli, F.
Romeu, J. Arnau
Artamonov, A.
Artuso, M.
Arzymatov, K.
Aslanides, E.
Atzeni, M.
Audurier, B.
Bachmann, S.
Back, J. J.
Baker, S.
Balagura, V
Baldini, W.
Baranov, A.
Barlow, R. J.
Barsuk, S.
Barter, W.
Baryshnikov, F.
Batozskaya, V
Batsukh, B.
Battista, V
Bay, A.
Beddow, J.
Bedeschi, F.
Bediaga, I
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PHYSICAL REVIEW LETTERS, 2019, 122 (01)

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