K-Shell photodetachment of Li−: Experiment and theory

CLEO Collaboration

doi:10.1103/PhysRevLett.87.251808

K-Shell photodetachment of Li⁻: Experiment and theory

CLEO Collaboration

Physics

University at Albany

University of Rochester
Southern Methodist University
Syracuse University
University of Texas at Austin
University of Texas-Pan American
Vanderbilt University
Virginia Polytechnic Institute and State University
Wayne State University
California Institute of Technology
University of California at San Diego
University of California at Santa Barbara

Research output: Contribution to journal › Article › peer-review

Abstract

We have measured the first and second moments of the hadronic mass-squared distribution in B→X_clv, for P_lepton>1.5 GeV/c. We find(M_X²−M_D⁻²)= 0.251 ± 0.66 GeV²,((M_X²−M_X²)²)=0.576 ± 0.170 GeV⁴, where M^¯_Dis the spin-averaged D meson mass. From that first moment and the first moment of the photon energy spectrum in b→s γ, we find the heavy quark effective theory parameter λ₁(in the modified minimal subtraction renormalization scheme, to order 1/M_B³and γ₀α_s²) to be −0.24±0.11GeV². Using these first moments and the B semileptonic width, and assuming parton-hadron duality, we obtain|V_cb|=0.0404±0.0013.

Original language	English
Journal	Physical Review Letters
Volume	87
Issue number	25
DOIs	https://doi.org/10.1103/PhysRevLett.87.251808
State	Published - Dec 3 2001

Access to Document

10.1103/PhysRevLett.87.251808

Cite this

@article{869cd59a0bce424cbd8d77888cece3ca,

title = "K-Shell photodetachment of Li−: Experiment and theory",

abstract = "We have measured the first and second moments of the hadronic mass-squared distribution in B→Xclv, for Plepton>1.5 GeV/c. We find(MX2−MD−2)= 0.251 ± 0.66 GeV2,((MX2−MX2)2)=0.576 ± 0.170 GeV4, where M¯Dis the spin-averaged D meson mass. From that first moment and the first moment of the photon energy spectrum in b→s γ, we find the heavy quark effective theory parameter λ1(in the modified minimal subtraction renormalization scheme, to order 1/MB3and γ0αs2) to be −0.24±0.11GeV2. Using these first moments and the B semileptonic width, and assuming parton-hadron duality, we obtain|Vcb|=0.0404±0.0013.",

author = "\{CLEO Collaboration\} and D. Cronin-Hennessy and Lyon, \{A. L.\} and S. Roberts and Thorndike, \{E. H.\} and Coan, \{T. E.\} and V. Fadeyev and Gao, \{Y. S.\} and Y. Maravin and I. Narsky and R. Stroynowski and J. Ye and T. Wlodek and M. Artuso and K. Benslama and C. Boulahouache and K. Bukin and E. Dambasuren and G. Majumder and R. Mountain and T. Skwarnicki and S. Stone and Wang, \{J. C.\} and A. Wolf and S. Kopp and M. Kostin and Mahmood, \{A. H.\} and Csorna, \{S. E.\} and I. Danko and McLean, \{K. W.\} and Z. Xu and R. Godang and G. Bonvicini and D. Cinabro and M. Dubrovin and S. McGee and Zhou, \{G. J.\} and A. Bornheim and E. Lipeles and Pappas, \{S. P.\} and A. Shapiro and Sun, \{W. M.\} and Weinstein, \{A. J.\} and Jaffe, \{D. E.\} and R. Mahapatra and G. Masek and Paar, \{H. P.\} and Asner, \{D. M.\} and A. Eppich and Hill, \{T. S.\} and J. Ernst",

year = "2001",

month = dec,

day = "3",

doi = "10.1103/PhysRevLett.87.251808",

language = "English",

volume = "87",

journal = "Physical Review Letters",

issn = "0031-9007",

number = "25",

}

TY - JOUR

T1 - K-Shell photodetachment of Li−

T2 - Experiment and theory

AU - CLEO Collaboration

AU - Cronin-Hennessy, D.

AU - Lyon, A. L.

AU - Roberts, S.

AU - Thorndike, E. H.

AU - Coan, T. E.

AU - Fadeyev, V.

AU - Gao, Y. S.

AU - Maravin, Y.

AU - Narsky, I.

AU - Stroynowski, R.

AU - Ye, J.

AU - Wlodek, T.

AU - Artuso, M.

AU - Benslama, K.

AU - Boulahouache, C.

AU - Bukin, K.

AU - Dambasuren, E.

AU - Majumder, G.

AU - Mountain, R.

AU - Skwarnicki, T.

AU - Stone, S.

AU - Wang, J. C.

AU - Wolf, A.

AU - Kopp, S.

AU - Kostin, M.

AU - Mahmood, A. H.

AU - Csorna, S. E.

AU - Danko, I.

AU - McLean, K. W.

AU - Xu, Z.

AU - Godang, R.

AU - Bonvicini, G.

AU - Cinabro, D.

AU - Dubrovin, M.

AU - McGee, S.

AU - Zhou, G. J.

AU - Bornheim, A.

AU - Lipeles, E.

AU - Pappas, S. P.

AU - Shapiro, A.

AU - Sun, W. M.

AU - Weinstein, A. J.

AU - Jaffe, D. E.

AU - Mahapatra, R.

AU - Masek, G.

AU - Paar, H. P.

AU - Asner, D. M.

AU - Eppich, A.

AU - Hill, T. S.

AU - Ernst, J.

PY - 2001/12/3

Y1 - 2001/12/3

N2 - We have measured the first and second moments of the hadronic mass-squared distribution in B→Xclv, for Plepton>1.5 GeV/c. We find(MX2−MD−2)= 0.251 ± 0.66 GeV2,((MX2−MX2)2)=0.576 ± 0.170 GeV4, where M¯Dis the spin-averaged D meson mass. From that first moment and the first moment of the photon energy spectrum in b→s γ, we find the heavy quark effective theory parameter λ1(in the modified minimal subtraction renormalization scheme, to order 1/MB3and γ0αs2) to be −0.24±0.11GeV2. Using these first moments and the B semileptonic width, and assuming parton-hadron duality, we obtain|Vcb|=0.0404±0.0013.

AB - We have measured the first and second moments of the hadronic mass-squared distribution in B→Xclv, for Plepton>1.5 GeV/c. We find(MX2−MD−2)= 0.251 ± 0.66 GeV2,((MX2−MX2)2)=0.576 ± 0.170 GeV4, where M¯Dis the spin-averaged D meson mass. From that first moment and the first moment of the photon energy spectrum in b→s γ, we find the heavy quark effective theory parameter λ1(in the modified minimal subtraction renormalization scheme, to order 1/MB3and γ0αs2) to be −0.24±0.11GeV2. Using these first moments and the B semileptonic width, and assuming parton-hadron duality, we obtain|Vcb|=0.0404±0.0013.

UR - https://www.scopus.com/pages/publications/85039594222

U2 - 10.1103/PhysRevLett.87.251808

DO - 10.1103/PhysRevLett.87.251808

M3 - Article

SN - 0031-9007

VL - 87

JO - Physical Review Letters

JF - Physical Review Letters

IS - 25

ER -

K-Shell photodetachment of Li⁻: Experiment and theory

Abstract

Access to Document

Other files and links

Fingerprint

Cite this