Differential decay rate for B → pi;lν semileptonic decays

JLQCD Collaboration; Aoki, S; Burkhalter, R; Fukugita, M; Hashimoto, S; Ishikawa, Kenichi; Ishizuka, N; Iwasaki, Y; Kanaya, K; Kaneko, T; Kuramashi, Y; Okawa, Masanori; Onogi, T; Tominaga, S; Tsutsui, N; Ukawa, A; Yamada, N; Yoshié, T

doi:10.1016/S0920-5632(01)00954-9

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Differential decay rate for B → pi;lν semileptonic decays

https://hiroshima.repo.nii.ac.jp/records/2007872

名前 / ファイル	ライセンス	アクション
045_0011008.pdf (118.1 KB)

Item type

デフォルトアイテムタイプ_（フル）(1)

公開日

2023-03-18

タイトル

Differential decay rate for B → pi;lν semileptonic decays

言語

作成者

JLQCD Collaboration
Aoki, S
Burkhalter, R
Fukugita, M
Hashimoto, S
Ishikawa, Kenichi
Ishizuka, N
Iwasaki, Y
Kanaya, K
Kaneko, T
Kuramashi, Y
Okawa, Masanori
Onogi, T
Tominaga, S
Tsutsui, N
Ukawa, A
Yamada, N
Yoshié, T

アクセス権

open access

アクセス権URI

http://purl.org/coar/access_right/c_abf2

権利情報

主題

主題Scheme

NDC

主題

420

内容記述

We present our study on B → pi;lν semileptonic decay form factors using NRQCD action for heavy quark. In the analysis, we use the form factors f1(·kπ) and f2(·kπ) defined in the context of heavy quark effective theory by Burdman et al.. Since the NRQCD action for heavy quark respects the heavy quark symmetry, our results are described by the HQET form factors most naturally. From a quenched lattice QCD simulation at β=5.9 on a 163 × 48 lattice, we obtain the form factors f1(·kπ) and f2(·kπ), and find that their 1/mB correction is small. The limit of physical heavy and light quark masses can be reached without introducing any model function, and we obtain a prediction for the differential decay rate dΓ/dq2. We also discuss the soft pion limit of the form factors.

言語

出版者

Elsevier Science B.V.

言語

eng

資源タイプ

資源タイプ識別子

http://purl.org/coar/resource_type/c_6501

資源タイプ

journal article

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出版タイプResource

http://purl.org/coar/version/c_b1a7d7d4d402bcce

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2025-02-21 04:05:45.929252

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Differential decay rate for B → pi;lν semileptonic decays

× JLQCD Collaboration

× Aoki, S

× Burkhalter, R

× Fukugita, M

× Hashimoto, S

× Ishikawa, Kenichi

× Ishizuka, N

× Iwasaki, Y

× Kanaya, K

× Kaneko, T

× Kuramashi, Y

× Okawa, Masanori

× Onogi, T

× Tominaga, S

× Tsutsui, N

× Ukawa, A

× Yamada, N

× Yoshié, T

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