form factors from lattice QCD and phenomenology of and decays
Abstract
We report on a lattice QCD determination of the Λc→N vector, axial vector, and tensor form factors. Here, the calculation was performed with 2+1 flavors of domain wall fermions at lattice spacings of a≈0.11 and 0.085 fm and pion masses in the range 230 MeV≲ mπ ≲ 350 MeV. The form factors are extrapolated to the continuum limit and the physical pion mass using modified z expansions. The rates of the charged-current decays Λc→ne+νe and Λc→nμ+νμ are predicted to be (0.405 ± 0.016stat ± 0.020syst)|Vcd|2ps₋1 and (0.396 ± 0.016stat ± 0.020syst)|Vcd|2ps₋1, respectively. The phenomenology of the rare charm decay Λc→pμ+μ₋ is also studied. The differential branching fraction, the fraction of longitudinally polarized dimuons, and the forward-backward asymmetry are calculated in the Standard Model and in an illustrative new-physics scenario.
- Authors:
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
- Sponsoring Org.:
- USDOE Office of Science (SC); National Science Foundation (NSF)
- OSTI Identifier:
- 1422454
- Alternate Identifier(s):
- OSTI ID: 1544321
- Grant/Contract Number:
- AC02-05CH11231
- Resource Type:
- Published Article
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Name: Physical Review D Journal Volume: 97 Journal Issue: 3; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Meinel, Stefan. Λ c → N form factors from lattice QCD and phenomenology of Λ c → n ℓ + ν ℓ and Λ c → p μ + μ − decays. United States: N. p., 2018.
Web. doi:10.1103/PhysRevD.97.034511.
Meinel, Stefan. Λ c → N form factors from lattice QCD and phenomenology of Λ c → n ℓ + ν ℓ and Λ c → p μ + μ − decays. United States. https://doi.org/10.1103/PhysRevD.97.034511
Meinel, Stefan. Fri .
"Λ c → N form factors from lattice QCD and phenomenology of Λ c → n ℓ + ν ℓ and Λ c → p μ + μ − decays". United States. https://doi.org/10.1103/PhysRevD.97.034511.
@article{osti_1422454,
title = {Λ c → N form factors from lattice QCD and phenomenology of Λ c → n ℓ + ν ℓ and Λ c → p μ + μ − decays},
author = {Meinel, Stefan},
abstractNote = {We report on a lattice QCD determination of the Λc→N vector, axial vector, and tensor form factors. Here, the calculation was performed with 2+1 flavors of domain wall fermions at lattice spacings of a≈0.11 and 0.085 fm and pion masses in the range 230 MeV≲ mπ ≲ 350 MeV. The form factors are extrapolated to the continuum limit and the physical pion mass using modified z expansions. The rates of the charged-current decays Λc→ne+νe and Λc→nμ+νμ are predicted to be (0.405 ± 0.016stat ± 0.020syst)|Vcd|2ps₋1 and (0.396 ± 0.016stat ± 0.020syst)|Vcd|2ps₋1, respectively. The phenomenology of the rare charm decay Λc→pμ+μ₋ is also studied. The differential branching fraction, the fraction of longitudinally polarized dimuons, and the forward-backward asymmetry are calculated in the Standard Model and in an illustrative new-physics scenario.},
doi = {10.1103/PhysRevD.97.034511},
journal = {Physical Review D},
number = 3,
volume = 97,
place = {United States},
year = {2018},
month = {2}
}
https://doi.org/10.1103/PhysRevD.97.034511
Web of Science
Figures / Tables:

Works referenced in this record:
Continuum limit physics from flavor domain wall QCD
journal, April 2011
- Aoki, Y.; Arthur, R.; Blum, T.
- Physical Review D, Vol. 83, Issue 7
Rare baryon decays ( , , ) and : Differential and total rates, lepton- and hadron-side forward-backward asymmetries
journal, April 2013
- Gutsche, Thomas; Ivanov, Mikhail A.; Körner, Jürgen G.
- Physical Review D, Vol. 87, Issue 7
Semileptonic decays and from lattice QCD
journal, May 2001
- El-Khadra, Aida X.; Kronfeld, Andreas S.; Mackenzie, Paul B.
- Physical Review D, Vol. 64, Issue 1
Axial symmetries in lattice QCD with Kaplan fermions
journal, April 1995
- Furman, Vadim; Shamir, Yigal
- Nuclear Physics B, Vol. 439, Issue 1-2
Form factors and strong couplings of heavy baryons from QCD light-cone sum rules
journal, September 2011
- Khodjamirian, A.; Klein, Ch.; Mannel, Th.
- Journal of High Energy Physics, Vol. 2011, Issue 9
Searches for rare or forbidden semileptonic charm decays
journal, October 2011
- Lees, J. P.; Poireau, V.; Tisserand, V.
- Physical Review D, Vol. 84, Issue 7
Erratum: Form factors for transitions in the soft-collinear effective theory [Phys. Rev. D 85 , 014035 (2012)]
journal, October 2012
- Feldmann, Thorsten; Yip, Matthew W. Y.
- Physical Review D, Vol. 86, Issue 7
Chiral fermions from lattice boundaries
journal, September 1993
- Shamir, Yigal
- Nuclear Physics B, Vol. 406, Issue 1-2
Bottomonium spectrum at order from domain-wall lattice QCD: Precise results for hyperfine splittings
journal, December 2010
- Meinel, Stefan
- Physical Review D, Vol. 82, Issue 11
Semileptonic decays of heavy Λ baryons in a quark model
journal, September 2005
- Pervin, Muslema; Roberts, Winston; Capstick, Simon
- Physical Review C, Vol. 72, Issue 3
Semileptonic decays of $$\Lambda _c$$ Λ c baryons in the relativistic quark model
journal, November 2016
- Faustov, R. N.; Galkin, V. O.
- The European Physical Journal C, Vol. 76, Issue 11
On within the Standard Model and frameworks like the littlest Higgs model with Parity
journal, June 2011
- Paul, Ayan; Bigi, Ikaros I.; Recksiegel, Stefan
- Physical Review D, Vol. 83, Issue 11
Renormalization group improved action for SU(3) lattice gauge theory and the string tension
journal, August 1984
- Iwasaki, Y.; Yoshié, T.
- Physics Letters B, Vol. 143, Issue 4-6
Test flavor SU(3) symmetry in exclusive decays
journal, March 2016
- Lü, Cai-Dian; Wang, Wei; Yu, Fu-Sheng
- Physical Review D, Vol. 93, Issue 5
D → ρℓ + ℓ − decays in the QCD factorization approach
journal, August 2017
- Feldmann, Thorsten; Müller, Bastian; Seidel, Dirk
- Journal of High Energy Physics, Vol. 2017, Issue 8
Massive fermions in lattice gauge theory
journal, April 1997
- El-Khadra, Aida X.; Kronfeld, Andreas S.; Mackenzie, Paul B.
- Physical Review D, Vol. 55, Issue 7
Higher-order Wilson coefficients for c → u transitions in the standard model
journal, August 2016
- de Boer, Stefan; Müller, Bastian; Seidel, Dirk
- Journal of High Energy Physics, Vol. 2016, Issue 8
A method for simulating chiral fermions on the lattice
journal, August 1992
- Kaplan, David B.
- Physics Letters B, Vol. 288, Issue 3-4
RunDec: a Mathematica package for running and decoupling of the strong coupling and quark masses
journal, December 2000
- Chetyrkin, K. G.; Kühn, J. H.; Steinhauser, M.
- Computer Physics Communications, Vol. 133, Issue 1
Semileptonic to nucleon transitions in full QCD at light cone
journal, November 2009
- Azizi, K.; Bayar, M.; Sarac, Y.
- Physical Review D, Vol. 80, Issue 9
Prospects of discovering new physics in rare charm decays
journal, November 2015
- Fajfer, Svjetlana; Košnik, Nejc
- The European Physical Journal C, Vol. 75, Issue 12
Form Factors and Decay Rates from Lattice QCD with Physical Quark Masses
journal, February 2017
- Meinel, Stefan
- Physical Review Letters, Vol. 118, Issue 8
Erratum: Heavy-to-light semileptonic decays of and baryons in the covariant confined quark model [Phys. Rev. D 90 , 114033 (2014)]
journal, September 2016
- Gutsche, Thomas; Ivanov, Mikhail A.; Körner, Jürgen G.
- Physical Review D, Vol. 94, Issue 5
Charmed bottom baryon spectroscopy from lattice QCD
journal, November 2014
- Brown, Zachary S.; Detmold, William; Meinel, Stefan
- Physical Review D, Vol. 90, Issue 9
Search for transition in charmed baryon decays
journal, February 2016
- Şirvanli, Berin Belma
- Physical Review D, Vol. 93, Issue 3
Matching QCD and heavy-quark effective theory heavy-light currents at two loops and beyond
journal, October 1995
- Broadhurst, D. J.; Grozin, A. G.
- Physical Review D, Vol. 52, Issue 7
Model-independent description of decays and a determination of
journal, January 2009
- Bourrely, Claude; Lellouch, Laurent; Caprini, Irinel
- Physical Review D, Vol. 79, Issue 1
Analysis of the semileptonic decay ${{\rm{\Lambda }}}_{c} \rightarrow {{ne}}^{+}{\nu }_{e}$
journal, May 2017
- Li, Cheng-Fei; Liu, Yong-Lu; Liu, Ke
- Journal of Physics G: Nuclear and Particle Physics, Vol. 44, Issue 7
Heavy baryon transitions in a relativistic three-quark model
journal, July 1997
- Ivanov, M. A.; Lyubovitskij, V. E.; Körner, J. G.
- Physical Review D, Vol. 56, Issue 1
Form factors for transitions in the soft-collinear effective theory
journal, January 2012
- Feldmann, Thorsten; Yip, Matthew W. Y.
- Physical Review D, Vol. 85, Issue 1
Flavor and new physics opportunities with rare charm decays into leptons
journal, April 2016
- de Boer, Stefan; Hiller, Gudrun
- Physical Review D, Vol. 93, Issue 7
form factors, differential branching fraction, and angular observables from lattice QCD with relativistic quarks
journal, April 2016
- Detmold, William; Meinel, Stefan
- Physical Review D, Vol. 93, Issue 7
Effects of littlest Higgs model in rare meson decays
journal, March 2006
- Fajfer, Svjetlana; Prelovsek, Sasa
- Physical Review D, Vol. 73, Issue 5
Lattice QCD calculation of decay form factors at zero recoil
journal, December 1999
- Hashimoto, Shoji; El-Khadra, Aida X.; Kronfeld, Andreas S.
- Physical Review D, Vol. 61, Issue 1
Two loop virtual corrections to $$b\rightarrow (d,s)\ell ^+\ell ^-$$ b → ( d , s ) ℓ + ℓ - and $$c\rightarrow u\ell ^+\ell ^-$$ c → u ℓ + ℓ - for arbitrary momentum transfer
journal, November 2017
- de Boer, Stefan
- The European Physical Journal C, Vol. 77, Issue 11
FCNC transitions of Λ b , c to nucleon in SM
journal, October 2010
- Azizi, K.; Bayar, M.; Sarac, Y.
- Journal of Physics G: Nuclear and Particle Physics, Vol. 37, Issue 11
Domain wall QCD with physical quark masses
journal, April 2016
- Blum, T.; Boyle, P. A.; Christ, N. H.
- Physical Review D, Vol. 93, Issue 7
decay form factors from three-flavor lattice QCD
journal, January 2016
- Bailey, Jon A.; Bazavov, A.; Bernard, C.
- Physical Review D, Vol. 93, Issue 2
Heavy-to-light semileptonic decays of and baryons in the covariant confined quark model
journal, December 2014
- Gutsche, Thomas; Ivanov, Mikhail A.; Körner, Jürgen G.
- Physical Review D, Vol. 90, Issue 11
and form factors from lattice QCD with relativistic heavy quarks
journal, August 2015
- Detmold, William; Lehner, Christoph; Meinel, Stefan
- Physical Review D, Vol. 92, Issue 3
Upper limits for charm hadron decays to two muons plus hadrons
journal, February 1995
- Kodama, K.; Ushida, N.; Mokhtarani, A.
- Physics Letters B, Vol. 345, Issue 1
Measurement of the Absolute Branching Fraction for
journal, November 2015
- Ablikim, M.; Achasov, M. N.; Ai, X. C.
- Physical Review Letters, Vol. 115, Issue 22
Angular analysis of the decay Λ b → Λ(→ Nπ)ℓ + ℓ −
journal, January 2015
- Böer, Philipp; Feldmann, Thorsten; van Dyk, Danny
- Journal of High Energy Physics, Vol. 2015, Issue 1
The Chroma Software System for Lattice QCD
journal, March 2005
- Edwards, Robert G.; Joó, Bálint
- Nuclear Physics B - Proceedings Supplements, Vol. 140
Works referencing / citing this record:
Weak decays of heavy baryons in the light-front approach
journal, August 2018
- Zhao, Zhen-Xing
- Chinese Physics C, Vol. 42, Issue 9
Sum rules for CP asymmetries of charmed baryon decays in the $$SU(3)_F$$ limit
journal, May 2019
- Wang, Di
- The European Physical Journal C, Vol. 79, Issue 5
FLAG Review 2019
text, January 2019
- Aoki, S.; Aoki, Y.; Becirevic, D.
- Deutsches Elektronen-Synchrotron, DESY, Hamburg
Figures / Tables found in this record: