Improvements to the spectator model of B meson decays

V. Barger; C. S. Kim; R. J.N. Phillips

doi:10.1016/0370-2693(90)90118-P

Improvements to the spectator model of B meson decays

V. Barger, C. S. Kim, R. J.N. Phillips

Department of Physics

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

18 Citations (Scopus)

Abstract

The inclusive model of semileptonic decays B→ℓvX can be appreciably improved by considering the observed dependence on hadronic invariant mass m_x, in addition to the lepton energy spectrum that is usually discussed. The parameter freedom is thereby reduced, but the model can successfully reproduce the D and D^* enhancements in the m_x distribution, while simultaneously fitting the lepton energy distribution. With these improvements the model provides a more reliable basis for determining KM matrix elements from inclusive data.

Original language	English
Pages (from-to)	187-192
Number of pages	6
Journal	Physics Letters B
Volume	235
Issue number	1-2
DOIs	https://doi.org/10.1016/0370-2693(90)90118-P
Publication status	Published - 1990 Jan 25

Bibliographical note

Funding Information:
We thank K. Hagiwara for a stimulating conversation. This research was supported in part by the University of Wisconsin Research Committee with funds granted by the Wisconsin Alumni Research Foundation, and in part by the US Department of Energy under contract DE-AC02-76ER00881. The work of C.S.K. is supported in part by the UK Science and Engineering Research Council.

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

Access to Document

10.1016/0370-2693(90)90118-P

Cite this

@article{a3a9b959246b4553b86e88ee06e29b29,

title = "Improvements to the spectator model of B meson decays",

abstract = "The inclusive model of semileptonic decays B→ℓvX can be appreciably improved by considering the observed dependence on hadronic invariant mass mx, in addition to the lepton energy spectrum that is usually discussed. The parameter freedom is thereby reduced, but the model can successfully reproduce the D and D* enhancements in the mx distribution, while simultaneously fitting the lepton energy distribution. With these improvements the model provides a more reliable basis for determining KM matrix elements from inclusive data.",

author = "V. Barger and Kim, {C. S.} and Phillips, {R. J.N.}",

note = "Funding Information: We thank K. Hagiwara for a stimulating conversation. This research was supported in part by the University of Wisconsin Research Committee with funds granted by the Wisconsin Alumni Research Foundation, and in part by the US Department of Energy under contract DE-AC02-76ER00881. The work of C.S.K. is supported in part by the UK Science and Engineering Research Council.",

year = "1990",

month = jan,

day = "25",

doi = "10.1016/0370-2693(90)90118-P",

language = "English",

volume = "235",

pages = "187--192",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

number = "1-2",

}

TY - JOUR

T1 - Improvements to the spectator model of B meson decays

AU - Barger, V.

AU - Kim, C. S.

AU - Phillips, R. J.N.

N1 - Funding Information: We thank K. Hagiwara for a stimulating conversation. This research was supported in part by the University of Wisconsin Research Committee with funds granted by the Wisconsin Alumni Research Foundation, and in part by the US Department of Energy under contract DE-AC02-76ER00881. The work of C.S.K. is supported in part by the UK Science and Engineering Research Council.

PY - 1990/1/25

Y1 - 1990/1/25

N2 - The inclusive model of semileptonic decays B→ℓvX can be appreciably improved by considering the observed dependence on hadronic invariant mass mx, in addition to the lepton energy spectrum that is usually discussed. The parameter freedom is thereby reduced, but the model can successfully reproduce the D and D* enhancements in the mx distribution, while simultaneously fitting the lepton energy distribution. With these improvements the model provides a more reliable basis for determining KM matrix elements from inclusive data.

AB - The inclusive model of semileptonic decays B→ℓvX can be appreciably improved by considering the observed dependence on hadronic invariant mass mx, in addition to the lepton energy spectrum that is usually discussed. The parameter freedom is thereby reduced, but the model can successfully reproduce the D and D* enhancements in the mx distribution, while simultaneously fitting the lepton energy distribution. With these improvements the model provides a more reliable basis for determining KM matrix elements from inclusive data.

UR - http://www.scopus.com/inward/record.url?scp=0010948999&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0010948999&partnerID=8YFLogxK

U2 - 10.1016/0370-2693(90)90118-P

DO - 10.1016/0370-2693(90)90118-P

M3 - Article

AN - SCOPUS:0010948999

SN - 0370-2693

VL - 235

SP - 187

EP - 192

JO - Physics Letters B

JF - Physics Letters B

IS - 1-2

ER -

Improvements to the spectator model of B meson decays

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this