Determination of V(ub) at the Z boson resonance

Kim, C.S.; Martin, Alan D.

doi:10.1016/0370-2693(94)01594-3

Determination of V(ub) at the Z boson resonance

C.S. Kim
(
- Yonsei U.
)
,
Alan D. Martin
(
- Durham U.
)

Aug, 1994

5 pages

Published in:

Phys.Lett.B 345 (1995) 296-300

Published: 1995

e-Print:

hep-ph/9409317 [hep-ph]

DOI:

10.1016/0370-2693(94)01594-3

Report number:

DTP-94-68,
YUMS-94-21,
SNUTP-94-78

View in:

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Abstract:

We show that the observation of energetic charged leptons from semileptonic

b

becays at the LEP and SLC

Z

--boson factories offers a unique opportunity to measure the quark mixing matrix element

V_{ub}

. We present various distributions of the

b

decay products to show that the

b \to u

decays can be cleanly separated from the

b \to c

decays, with a signal of

O(100)

events per million

Z

bosons produced.

B: semileptonic decay
semileptonic decay: B
B: branching ratio
CKM matrix matrix
Z0: nonleptonic decay
nonleptonic decay: Z0
bottom: pair production
pair production: bottom
Z0: width
numerical calculations

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Figures(0)

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