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Measurement of the moments of the hadronic invariant mass distribution in semileptonic B decays

Publication ,  Journal Article
Acosta, D; Adelman, J; Affolder, T; Akimoto, T; Albrow, MG; Ambrose, D; Amerio, S; Amidei, D; Anastassov, A; Anikeev, K; Annovi, A; Antos, J ...
Published in: Physical Review D - Particles, Fields, Gravitation and Cosmology
2005

Using 180 pb -1 of data collected with the CDF II detector at the Tevatron, we measure the first two moments of the hadronic invariant mass-squared distribution in charmed semileptonic B decays. From these we determine the nonperturbative Heavy Quark Effective Theory parameters Λ and λ 1 used to relate the B meson semileptonic branching ratio to the CKM matrix element |V cb|. For a minimum lepton momentum of 0.7 GeV/c in the B rest frame we measure the first two moments of the D** → D (*)π component to be 〈m D**2〉 = (5.83 ± 0.16 stat ± 0.08 syst) GeV 2/c 4 and 〈(m D**2 - 〈m D**2〉) 2〉 = (1.30 ± 0.69 stat ± 0.22 syst) GeV 4/c 8. Combining these with the discrete mass terms from the D and D* mesons, we find the total moments to be 〈M Ξc2〉 - m̄ D2 = (0.467 ± 0.038 stat ± 0.068 syst GeV 2/c 4 and 〈(M Ξc2 - 〈M Ξc2〉) 2〉 = (1.05 ± 0.26 stat ± 0.13 syst) GeV 4/c 8, where m̄ D is the spin-averaged D mass. The systematic error is dominated by the uncertainties in the world-average branching ratios used to combine the D, D*, and D** contributions. The analysis makes no assumptions about the shape or resonant structure of the D** → D (*)π invariant mass distribution. © 2005 The American Physical Society.

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Published In

Physical Review D - Particles, Fields, Gravitation and Cosmology

DOI

ISSN

1550-7998

Publication Date

2005

Volume

71

Issue

5

Start / End Page

1 / 9

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5101 Astronomical sciences
  • 4902 Mathematical physics
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
 

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Acosta, D., Adelman, J., Affolder, T., Akimoto, T., Albrow, M. G., Ambrose, D., … Shepard, P. F. (2005). Measurement of the moments of the hadronic invariant mass distribution in semileptonic B decays. Physical Review D - Particles, Fields, Gravitation and Cosmology, 71(5), 1–9. https://doi.org/10.1103/PhysRevD.71.051103
Acosta, D., J. Adelman, T. Affolder, T. Akimoto, M. G. Albrow, D. Ambrose, S. Amerio, et al. “Measurement of the moments of the hadronic invariant mass distribution in semileptonic B decays.” Physical Review D - Particles, Fields, Gravitation and Cosmology 71, no. 5 (2005): 1–9. https://doi.org/10.1103/PhysRevD.71.051103.
Acosta D, Adelman J, Affolder T, Akimoto T, Albrow MG, Ambrose D, et al. Measurement of the moments of the hadronic invariant mass distribution in semileptonic B decays. Physical Review D - Particles, Fields, Gravitation and Cosmology. 2005;71(5):1–9.
Acosta, D., et al. “Measurement of the moments of the hadronic invariant mass distribution in semileptonic B decays.” Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 71, no. 5, 2005, pp. 1–9. Scival, doi:10.1103/PhysRevD.71.051103.
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M, Giurgiu G, Glagolev V, Glenzinski D, Gold M, Goldschmidt N, Goldstein D, Goldstein J, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Gotra Y, Goulianos K, Gresele A, Griffiths M, Grosso-Pilcher C, Grundler U, Guenther M, Costa JGD, Haber C, Hahn K, Hahn SR, Halkiadakis E, Hamilton A, Han BY, Handler R, Happacher F, Hara K, Hare M, Harr RF, Harris RM, Hartmann F, Hatakeyama K, Hauser J, Hays C, Hayward H, Heider E, Heinemann B, Heinrich J, Hennecke M, Herndon M, Hill C, Hirschbuehl D, Hocker A, Hoffman KD, Holloway A, Hou S, Houlden MA, Huffman BT, Huang Y, Hughes RE, Huston J, Ikado K, Incandela J, Introzzi G, Iori M, Ishizawa Y, Issever C, Ivanov A, Iwata Y, Iyutin B, James E, Jang D, Jarrell J, Jeans D, Jensen H, Jeon EJ, Jones M, Joo KK, Jun SY, Junk T, Kamon T, Kang J, Unel MK, Karchin PE, Kartal S, Kato Y, Kemp Y, Kephart R, Kerzel U, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim JE, Kim MJ, Kim MS, Kim SB, Kim SH, Kim TH, Kim YK, King BT, Kirby M, 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Miladinovic N, Miller L, Miller R, Miller JS, Miquel R, Miscetti S, Mitselmakher G, Miyamoto A, Miyazaki Y, Moggi N, Mohr B, Moore R, Morello M, Fernandez PAM, Mukherjee A, Mulhearn M, Muller T, Mumford R, Munar A, Murat P, Nachtman J, Nahn S, Nakamura I, Nakano I, Napier A, Napora R, Naumov D, Necula V, Niell F, Nielsen J, Nelson C, Nelson T, Neu C, Neubauer MS, Newman-Holmes C, Nigmanov T, Nodulman L, Norniella O, Oesterberg K, Ogawa T, Oh SH, Oh YD, Ohsugi T, Okusawa T, Oldeman R, Orava R, Orejudos W, Pagliarone C, Palencia E, Paoletti R, Papadimitriou V, Pashapour S, Patrick J, Pauletta G, Paulini M, Pauly T, Paus C, Pellett D, Penzo A, Phillips TJ, Piacentino G, Piedra J, Pitts KT, Plager C, Pompoš A, Pondrom L, Pope G, Portell X, Poukhov O, Prakoshyn F, Pratt T, Pronko A, Proudfoot J, Ptohos F, Punzi G, Rademacker J, Rahaman MA, Rakitine A, Rappoccio S, Ratnikov F, Ray H, Reisert B, Rekovic V, Renton P, Rescigno M, Rimondi F, Rinnert K, Ristori L, Robertson WJ, Robson A, Rodrigo 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Measurement of the moments of the hadronic invariant mass distribution in semileptonic B decays. Physical Review D - Particles, Fields, Gravitation and Cosmology. 2005;71(5):1–9.

Published In

Physical Review D - Particles, Fields, Gravitation and Cosmology

DOI

ISSN

1550-7998

Publication Date

2005

Volume

71

Issue

5

Start / End Page

1 / 9

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5101 Astronomical sciences
  • 4902 Mathematical physics
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences