Update on splitting of lifetimes of c and b hyperons within the heavy quark expansion and decays Ξ Q → Λ Q π

Voloshin, M. B.

doi:10.1103/PhysRevD.100.114030

Title: Update on splitting of lifetimes of $c$ and $b$ hyperons within the heavy quark expansion and decays $Ξ_{Q} \to Λ_{Q} π$

Abstract

It is argued that the results of recent precision measurements by LHCb of the lifetimes of charmed and bottom hyperons are very well consistent with the description within heavy quark expansion and allow to accurately determine matrix elements of light-flavor nonsinglet four-quark operators over the hyperons and to accurately reproduce the difference of lifemes of $$Λ_b$$ and $$Ξ^–_b$$. When combined with the recent LHCb results on the decay $$Ξ^–_b → Λ_bπ^–$$ this leads to a prediction of a lower bound on the rate of the decays $$Ξ_c → Λ_cπ$$.

Authors:

Publication Date:: 2019-12-20

Research Org.:: Univ. of Minnesota, Minneapolis, MN (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1580156

Alternate Identifier(s):: OSTI ID: 1802273

Grant/Contract Number:: SC0011842

Resource Type:: Published Article

Journal Name:: Physical Review D

Additional Journal Information:: Journal Name: Physical Review D Journal Volume: 100 Journal Issue: 11; Journal ID: ISSN 2470-0010

Publisher:: American Physical Society

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Astronomy & Astrophysics; Physics

Citation Formats


                    Voloshin, M. B. Update on splitting of lifetimes of c and b hyperons within the heavy quark expansion and decays Ξ Q → Λ Q π.  United States: N. p., 2019. 
Web.  doi:10.1103/PhysRevD.100.114030.

Copy to clipboard


                    Voloshin, M. B. Update on splitting of lifetimes of c and b hyperons within the heavy quark expansion and decays Ξ Q → Λ Q π.  United States.  https://doi.org/10.1103/PhysRevD.100.114030

Copy to clipboard


                    Voloshin, M. B. Fri .  
"Update on splitting of lifetimes of c and b hyperons within the heavy quark expansion and decays Ξ Q → Λ Q π".  United States.  https://doi.org/10.1103/PhysRevD.100.114030.

Copy to clipboard


                    
@article{osti_1580156,

  title        = {Update on splitting of lifetimes of c and b hyperons within the heavy quark expansion and decays Ξ Q → Λ Q π},

  author       = {Voloshin, M. B.},

  abstractNote = {It is argued that the results of recent precision measurements by LHCb of the lifetimes of charmed and bottom hyperons are very well consistent with the description within heavy quark expansion and allow to accurately determine matrix elements of light-flavor nonsinglet four-quark operators over the hyperons and to accurately reproduce the difference of lifemes of $Λ_b$ and $Ξ^–_b$. When combined with the recent LHCb results on the decay $Ξ^–_b → Λ_bπ^–$ this leads to a prediction of a lower bound on the rate of the decays $Ξ_c → Λ_cπ$.},

  doi          = {10.1103/PhysRevD.100.114030},

  journal      = {Physical Review D},

  number       = 11,

  volume       = 100,

  place        = {United States},

  year         = {2019},

  month        = {12}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Publisher's Version of Record
https://doi.org/10.1103/PhysRevD.100.114030

Other availability

Search WorldCat to find libraries that may hold this journal

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Measurement of the mass and production rate of $Ξ_{b}^{-}$ baryons
journal, March 2019

Aaij, R.; Abellán Beteta, C.; Adeva, B.
Physical Review D, Vol. 99, Issue 5
DOI: 10.1103/PhysRevD.99.052006

Weak decays ΞQ→ΛQπ
journal, March 2000

Voloshin, M. B.
Physics Letters B, Vol. 476, Issue 3-4
DOI: 10.1016/S0370-2693(00)00150-7

Lifetimes and heavy quark expansion
journal, April 2015

Lenz, Alexander
International Journal of Modern Physics A, Vol. 30, Issue 10
DOI: 10.1142/S0217751X15430058

Heavy quarks
journal, May 1983

Khoze, V. A.; Shifman, Mikhail A.
Soviet Physics Uspekhi, Vol. 26, Issue 5
DOI: 10.1070/PU1983v026n05ABEH004398

Pauli interference effect in D+ lifetime
journal, December 1984

Bilić, Neven; Guberina, Branko; Trampetić, Josip
Nuclear Physics B, Vol. 248, Issue 2
DOI: 10.1016/0550-3213(84)90596-0

Nonperturbative corrections to inclusive beauty and charm decays. QCD versus phenomenological models
journal, October 1992

Bigi, I. I.; Uraltsev, N. G.; Vainshtein, A. I.
Physics Letters B, Vol. 293, Issue 3-4
DOI: 10.1016/0370-2693(92)90908-M

Measurements of the Bs0 and Λb0 lifetimes
journal, April 1998

Ackerstaff, K.; Alexander, G.; Allison, J.
Physics Letters B, Vol. 426, Issue 1-2
DOI: 10.1016/S0370-2693(98)00289-5

Heavy-flavor-conserving nonleptonic weak decays of heavy baryons
journal, December 1992

Cheng, Hai-Yang; Cheung, Chi-Yee; Lin, Guey-Lin
Physical Review D, Vol. 46, Issue 11
DOI: 10.1103/PhysRevD.46.5060

Evidence for Unequal Lifetimes of the $D^{0}$ and $D^{+}$
journal, August 1980

Bacino, W.; Ferguson, T.; Nodulman, L.
Physical Review Letters, Vol. 45, Issue 5
DOI: 10.1103/PhysRevLett.45.329

Evidence for the Strangeness-Changing Weak Decay $Ξ_{b}^{-} \to Λ_{b}^{0} π^{-}$
journal, December 2015

Aaij, R.; Abellán Beteta, C.; Adeva, B.
Physical Review Letters, Vol. 115, Issue 24
DOI: 10.1103/PhysRevLett.115.241801

Measurement of the b baryon lifetime and branching fractions in Z decays
journal, April 1998

Barate et al., R.
The European Physical Journal C, Vol. 2, Issue 2
DOI: 10.1007/s100529800837

From Ξ → Λπ to Ξ → Λπ
journal, June 2016

Gronau, Michael; Rosner, Jonathan L.
Physics Letters B, Vol. 757
DOI: 10.1016/j.physletb.2016.04.020

Reducing model dependence of spectator effects in inclusive decays of heavy baryons
journal, March 2000

Voloshin, M. B.
Physical Review D, Vol. 61, Issue 7
DOI: 10.1103/PhysRevD.61.074026

Precision Measurement of the $Λ_{b}^{0}$ Baryon Lifetime
journal, September 2013

Aaij, R.; Adeva, B.; Adinolfi, M.
Physical Review Letters, Vol. 111, Issue 10
DOI: 10.1103/PhysRevLett.111.102003

Precision measurement of the $Λ_{c}^{+}$ , $Ξ_{c}^{+}$ , and $Ξ_{c}^{0}$ baryon lifetimes
journal, August 2019

Aaij, R.; Abellán Beteta, C.; Adeva, B.
Physical Review D, Vol. 100, Issue 3
DOI: 10.1103/PhysRevD.100.032001

Review of Particle Physics
journal, August 2018

Tanabashi, M.; Hagiwara, K.; Hikasa, K.
Physical Review D, Vol. 98, Issue 3
DOI: 10.1103/PhysRevD.98.030001

Beauty-Conserving Strangeness-Changing Two-Body Hadronic Decays of Beauty Baryons
journal, April 1999

Sinha, Sonali; Khanna, M. P.
Modern Physics Letters A, Vol. 14, Issue 10n11
DOI: 10.1142/S0217732399000705

A measurement of the b baryon lifetime
journal, December 1992

Buskulic, D.; Decamp, D.; Goy, C.
Physics Letters B, Vol. 297, Issue 3-4
DOI: 10.1016/0370-2693(92)91284-G

$S$ -wave nonleptonic hyperon decays and $Ξ_{b}^{-} \to π^{-} Λ_{b}$
journal, February 2016

Gronau, Michael; Rosner, Jonathan L.
Physical Review D, Vol. 93, Issue 3
DOI: 10.1103/PhysRevD.93.034020

Light-quark decays in heavy hadrons
journal, November 2015

Faller, Sven; Mannel, Thomas
Physics Letters B, Vol. 750
DOI: 10.1016/j.physletb.2015.09.072

Relations between inclusive decay rates of heavy baryons
journal, October 1999

Voloshin, M. B.
Physics Reports, Vol. 320, Issue 1-6
DOI: 10.1016/S0370-1573(99)00054-X

Precision measurement of the ratio of the <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd" xmlns:sa="http://www.elsevier.com/xml/common/struct-aff/dtd"><mml:msubsup><mml:mrow><mml:mi>Λ</mml:mi></mml:mrow><mml:mrow><mml:mi>b</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msubsup></mml:math> to <mml:math altimg="si2.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd" xmlns:sa="http://www.elsevier.com/xml/common/struct-aff/dtd"><mml:msup><mml:mrow><mml:mover accent="true"><mml:mi>B</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msup></mml:math> lifetimes
journal, June 2014

Aaij, R.; Adeva, B.; Adinolfi, M.
Physics Letters B, Vol. 734
DOI: 10.1016/j.physletb.2014.05.021

Decays $Ξ_{b} \to Λ_{b} π$ and diquark correlations in hyperons
journal, August 2014

Li, Xin; Voloshin, M. B.
Physical Review D, Vol. 90, Issue 3
DOI: 10.1103/PhysRevD.90.033016

Heavy-flavor-conserving hadronic weak decays of heavy baryons
journal, March 2016

Cheng, Hai-Yang; Cheung, Chi-Yee; Lin, Guey-Lin
Journal of High Energy Physics, Vol. 2016, Issue 3
DOI: 10.1007/JHEP03(2016)028

Measurements of the b baryon lifetime
journal, September 1995

Buskulic, D.; Casper, D.; De Bonis, I.
Physics Letters B, Vol. 357, Issue 4
DOI: 10.1016/0370-2693(95)00980-Y

Similar Records in DOE PAGES and OSTI.GOV collections:

Measurements of the branching fractions $B (B^{-} \to {\bar{Λ}}_{c}^{-} Ξ_{c}^{' 0})$ , $B (B^{-} \to {\bar{Λ}}_{c}^{-} Ξ_{c} (2645)^{0})$ and $B (B^{-} \to {\bar{Λ}}_{c}^{-} Ξ_{c} (2790)^{0})$

Journal Article Li, Y. ; Li, Y. B. ; Shen, C. P. ; ... - Physical Review D

Usingmore »« less
https://doi.org/10.1103/PhysRevD.100.112010
Global Polarization of $Ξ$ and $Ω$ Hyperons in $Au + Au$ Collisions at $\sqrt{s_{N N}} = 200 GeV$

Journal Article Adam, Jaroslav Adam ; Adamczyk, L. ; Adams, J. R. ; ... - Physical Review Letters

Global polarization of Ξ and Ω hyperons has been measured for the first time in Au+Au collisions atmore »« less
https://doi.org/10.1103/physrevlett.126.162301

Full Text Available
Bayesian analysis of $b \to s μ^{+} μ^{-}$ Wilson coefficients using the full angular distribution of $Λ_{b} \to Λ (\to p π^{-}) μ^{+} μ^{-}$ decays

Journal Article Blake, Thomas ; Meinel, Stefan ; van Dyk, Danny - Physical Review D

Following updated and extended measurements of the full angular distribution of the decaymore »« less
Cited by 2
https://doi.org/10.1103/PhysRevD.101.035023
Evidence for the Strangeness-Changing Weak Decay $Ξ_{b}^{-} \to Λ_{b}^{0} π^{-}$

Journal Article Aaij, R. ; Abellán Beteta, C. ; Adeva, B. ; ... - Physical Review Letters

Using a pp collision data sample corresponding to an integrated luminosity of 3.0 fb^–1, collected by the LHCb detector, we present the first search for the strangeness-changing weak decay Ξ_b^– → Λ⁰_bπ^–. No b hadron decay of this type has been seen before. A signal for this decay, corresponding to a significance of 3.2 standard deviations, is reported.
Cited by 10
https://doi.org/10.1103/PhysRevLett.115.241801

Full Text Available
First branching fraction measurement of the suppressed decay $Ξ_{c}^{0} \to π^{-} Λ_{c}^{+}$

Journal Article Aaij, R. ; Abellán Beteta, C. ; Ackernley, T. ; ... - Physical Review D

Themore »« less
https://doi.org/10.1103/PhysRevD.102.071101

Similar Records

Title: Update on splitting of lifetimes of c and b hyperons within the heavy quark expansion and decays Ξ Q → Λ Q π

Abstract

Citation Formats

Measurement of the mass and production rate of Ξ b − baryons journal, March 2019

Weak decays ΞQ→ΛQπ journal, March 2000

Lifetimes and heavy quark expansion journal, April 2015

Heavy quarks journal, May 1983

Pauli interference effect in D+ lifetime journal, December 1984

Nonperturbative corrections to inclusive beauty and charm decays. QCD versus phenomenological models journal, October 1992

Measurements of the Bs0 and Λb0 lifetimes journal, April 1998

Heavy-flavor-conserving nonleptonic weak decays of heavy baryons journal, December 1992

Evidence for Unequal Lifetimes of the D 0 and D + journal, August 1980

Evidence for the Strangeness-Changing Weak Decay Ξ b − → Λ b 0 π − journal, December 2015

Measurement of the b baryon lifetime and branching fractions in Z decays journal, April 1998

From Ξ → Λπ to Ξ → Λπ journal, June 2016

Reducing model dependence of spectator effects in inclusive decays of heavy baryons journal, March 2000

Precision Measurement of the Λ b 0 Baryon Lifetime journal, September 2013

Precision measurement of the Λ c + , Ξ c + , and Ξ c 0 baryon lifetimes journal, August 2019

Review of Particle Physics journal, August 2018

Beauty-Conserving Strangeness-Changing Two-Body Hadronic Decays of Beauty Baryons journal, April 1999

A measurement of the b baryon lifetime journal, December 1992

S -wave nonleptonic hyperon decays and Ξ b − → π − Λ b journal, February 2016

Light-quark decays in heavy hadrons journal, November 2015

Relations between inclusive decay rates of heavy baryons journal, October 1999

Decays Ξ b → Λ b π and diquark correlations in hyperons journal, August 2014

Heavy-flavor-conserving hadronic weak decays of heavy baryons journal, March 2016

Measurements of the b baryon lifetime journal, September 1995

Title: Update on splitting of lifetimes of $c$ and $b$ hyperons within the heavy quark expansion and decays $Ξ_{Q} \to Λ_{Q} π$

Measurement of the mass and production rate of $Ξ_{b}^{-}$ baryons
journal, March 2019

Weak decays ΞQ→ΛQπ
journal, March 2000

Lifetimes and heavy quark expansion
journal, April 2015

Heavy quarks
journal, May 1983

Pauli interference effect in D+ lifetime
journal, December 1984

Nonperturbative corrections to inclusive beauty and charm decays. QCD versus phenomenological models
journal, October 1992

Measurements of the Bs0 and Λb0 lifetimes
journal, April 1998

Heavy-flavor-conserving nonleptonic weak decays of heavy baryons
journal, December 1992

Evidence for Unequal Lifetimes of the $D^{0}$ and $D^{+}$
journal, August 1980

Evidence for the Strangeness-Changing Weak Decay $Ξ_{b}^{-} \to Λ_{b}^{0} π^{-}$
journal, December 2015

Measurement of the b baryon lifetime and branching fractions in Z decays
journal, April 1998

From Ξ → Λπ to Ξ → Λπ
journal, June 2016

Reducing model dependence of spectator effects in inclusive decays of heavy baryons
journal, March 2000

Precision Measurement of the $Λ_{b}^{0}$ Baryon Lifetime
journal, September 2013

Precision measurement of the $Λ_{c}^{+}$ , $Ξ_{c}^{+}$ , and $Ξ_{c}^{0}$ baryon lifetimes
journal, August 2019

Review of Particle Physics
journal, August 2018

Beauty-Conserving Strangeness-Changing Two-Body Hadronic Decays of Beauty Baryons
journal, April 1999

A measurement of the b baryon lifetime
journal, December 1992

$S$ -wave nonleptonic hyperon decays and $Ξ_{b}^{-} \to π^{-} Λ_{b}$
journal, February 2016

Light-quark decays in heavy hadrons
journal, November 2015

Relations between inclusive decay rates of heavy baryons
journal, October 1999

Decays $Ξ_{b} \to Λ_{b} π$ and diquark correlations in hyperons
journal, August 2014

Heavy-flavor-conserving hadronic weak decays of heavy baryons
journal, March 2016

Measurements of the b baryon lifetime
journal, September 1995