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Title: No-Go Theorem for Nonstandard Explanations of the τ K S π ν τ C P Asymmetry

Abstract

The C P asymmetry in τ K S π ν τ C P , as measured by the BABAR collaboration, differs from the standard model prediction by 2.8 σ . Most nonstandard interactions do not allow for the required strong phase needed to produce a nonvanishing C P asymmetry, leaving only new tensor interactions as a possible mechanism. We demonstrate that, contrary to previous assumptions in the literature, the crucial interference between vector and tensor phases is suppressed by at least 2 orders of magnitude due to Watson’s final-state-interaction theorem. Furthermore, we find that the strength of the relevant C P -violating tensor interaction is strongly constrained by bounds from the neutron electric dipole moment and D – ¯ D mixing. These observations together imply that it is extremely difficult to explain the current τ K S π ν τ C P measurement in terms of physics beyond the standard model originating in the ultraviolet.

Authors:
; ;
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1432106
Alternate Identifier(s):
OSTI ID: 1438118
Report Number(s):
LA-UR-17-31337
Journal ID: ISSN 0031-9007; PRLTAO; 141803
Grant/Contract Number:  
AC52-06NA25396; FG02-00ER41132
Resource Type:
Published Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Name: Physical Review Letters Journal Volume: 120 Journal Issue: 14; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Atomic and Nuclear Physics

Citation Formats

Cirigliano, Vincenzo, Crivellin, Andreas, and Hoferichter, Martin. No-Go Theorem for Nonstandard Explanations of the τ → K S π ν τ C P Asymmetry. United States: N. p., 2018. Web. doi:10.1103/PhysRevLett.120.141803.
Cirigliano, Vincenzo, Crivellin, Andreas, & Hoferichter, Martin. No-Go Theorem for Nonstandard Explanations of the τ → K S π ν τ C P Asymmetry. United States. doi:10.1103/PhysRevLett.120.141803.
Cirigliano, Vincenzo, Crivellin, Andreas, and Hoferichter, Martin. Fri . "No-Go Theorem for Nonstandard Explanations of the τ → K S π ν τ C P Asymmetry". United States. doi:10.1103/PhysRevLett.120.141803.
@article{osti_1432106,
title = {No-Go Theorem for Nonstandard Explanations of the τ → K S π ν τ C P Asymmetry},
author = {Cirigliano, Vincenzo and Crivellin, Andreas and Hoferichter, Martin},
abstractNote = {The C P asymmetry in τ→KSπντ CP, as measured by the BABAR collaboration, differs from the standard model prediction by 2.8 σ . Most nonstandard interactions do not allow for the required strong phase needed to produce a nonvanishing C P asymmetry, leaving only new tensor interactions as a possible mechanism. We demonstrate that, contrary to previous assumptions in the literature, the crucial interference between vector and tensor phases is suppressed by at least 2 orders of magnitude due to Watson’s final-state-interaction theorem. Furthermore, we find that the strength of the relevant C P -violating tensor interaction is strongly constrained by bounds from the neutron electric dipole moment and D – ¯ D mixing. These observations together imply that it is extremely difficult to explain the current τ→KSπντ CP measurement in terms of physics beyond the standard model originating in the ultraviolet.},
doi = {10.1103/PhysRevLett.120.141803},
journal = {Physical Review Letters},
number = 14,
volume = 120,
place = {United States},
year = {2018},
month = {4}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevLett.120.141803

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Cited by: 4 works
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Figures / Tables:

FIG. 1 FIG. 1: |ƒ+(s)/ƒ+(0)| (black solid line) in comparison to the Omnès factor (red dashed line).

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Works referenced in this record:

K π vector form factor, dispersive constraints and τ→ν τ K π decays
journal, December 2008


Measurements of direct CP violation, CPT symmetry, and other parameters in the neutral kaon system
journal, January 2003


The scalar contribution toτ →K πν τ
journal, December 1996

  • Finkemeier, Markus; Mirkes, Erwin
  • Zeitschrift für Physik C: Particles and Fields, Vol. 72, Issue 4
  • DOI: 10.1007/s002880050284

Spin-dependent μ→e conversion
journal, August 2017


Electroweak radiative corrections to the semihadronic decay rate of the τ lepton
journal, December 1990


Chiral lagrangians for massive spin-1 fields
journal, June 1989


Review of Particle Physics
journal, October 2016


Search for C P Violation in τ ± K S 0 π ± ν τ Decays at Belle
journal, September 2011


Erratum: Search for C P violation in the decay τ π K s 0 ( O π 0 ) ν τ [Phys. Rev. D 85 , 031102(R) (2012)]
journal, May 2012


Study of <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"><mml:msup><mml:mi>τ</mml:mi><mml:mo>−</mml:mo></mml:msup><mml:mo>→</mml:mo><mml:msub><mml:mi>K</mml:mi><mml:mi>S</mml:mi></mml:msub><mml:msup><mml:mi>π</mml:mi><mml:mo>−</mml:mo></mml:msup><mml:msub><mml:mi>ν</mml:mi><mml:mi>τ</mml:mi></mml:msub></mml:math> decay at Belle
journal, October 2007


Dispersive representation of the scalar and vector Kπ form factors for and decays
journal, September 2011


On the solution of certain singular integral equations of quantum field theory
journal, April 1958


Flavor symmetry, K0– mixing and new physics effects on CP violation in D± and D±s decays
journal, March 1999


C P -Violation in the Renormalizable Theory of Weak Interaction
journal, February 1973

  • Kobayashi, Makoto; Maskawa, Toshihide
  • Progress of Theoretical Physics, Vol. 49, Issue 2
  • DOI: 10.1143/PTP.49.652

Revised experimental upper limit on the electric dipole moment of the neutron
journal, November 2015


Search for CP Violation in the decays D + K S π + and D + K S K +
journal, January 2002


Radiative corrections to β decay and the possibility of a fourth generation
journal, January 1986


Updated measurements of absolute D + and D 0 hadronic branching fractions and σ ( e + e D D ¯ ) at E cm = 3774 MeV
journal, April 2014


Some General Relations between the Photoproduction and Scattering of π Mesons
journal, July 1954


Neutron Electric Dipole Moment and Tensor Charges from Lattice QCD
journal, November 2015


Search for CP Violation in τ K π ν τ Decays
journal, February 2002


Can the observed C P asymmetry in τ K π ν τ be due to nonstandard tensor interactions?
journal, July 2014


The role of resonances in chiral perturbation theory
journal, July 1989


Erratum: Evidence for C P Violation in the Decay D + K S 0 π + [Phys. Rev. Lett. 109 , 021601 (2012)]
journal, September 2012


Search for C P violation in the decay τ π K s 0 ( O π 0 ) ν τ
journal, February 2012


Matrix elements of the electromagnetic operator between kaon and pion states
journal, October 2011


Effective lagrangian analysis of new interactions and flavour conservation
journal, May 1986


Erratum: Search for CP Violation in the Decays D + K S π + and D + K S K + [Phys. Rev. Lett. 88, 041602 (2002)]
journal, March 2002


Structure functions in τ decays
journal, June 1995

  • Kühn, J. H.; Mirkes, E.
  • Zeitschrift für Physik C Particles and Fields, Vol. 67, Issue 2
  • DOI: 10.1007/BF01571299

Electroweak radiative corrections to τ decay
journal, October 1988


Leading logarithmic corrections to the weak leptonic and semi-leptonic low-energy hamiltonian
journal, October 1981


CP violation in τ ± → π ± K S v and D ± → π ± K S : the importance of K S − K L interference
journal, April 2012


Violation of CP in variance, C asymmetry, and baryon asymmetry of the universe
journal, May 1991


R ECENT P ROGRESS IN B ARYOGENESIS
journal, December 1999


First lattice calculation of the electromagnetic operator amplitude 〈π0|Qγ+|K0〉
journal, March 2001


The UTfit collaboration average of D meson mixing data: Winter 2014
journal, March 2014

  • Bevan, A. J.; Bona, M.; Ciuchini, M.
  • Journal of High Energy Physics, Vol. 2014, Issue 3
  • DOI: 10.1007/JHEP03(2014)123

Improved Experimental Limit on the Electric Dipole Moment of the Neutron
journal, September 2006


Flavor physics in the quark sector
journal, September 2010


Structure functions in ? decays
journal, December 1992

  • K�hn, J. H.; Mirkes, E.
  • Zeitschrift f�r Physik C Particles and Fields, Vol. 56, Issue 4
  • DOI: 10.1007/BF01474741

Evidence for the 2 π Decay of the K 2 0 Meson
journal, July 1964


Predicting the τ strange branching ratios and implications for V us
journal, October 2013

  • Antonelli, Mario; Cirigliano, Vincenzo; Lusiani, Alberto
  • Journal of High Energy Physics, Vol. 2013, Issue 10
  • DOI: 10.1007/JHEP10(2013)070

Dimension-six terms in the Standard Model Lagrangian
journal, October 2010

  • Grzadkowski, B.; Iskrzyński, M.; Misiak, M.
  • Journal of High Energy Physics, Vol. 2010, Issue 10
  • DOI: 10.1007/JHEP10(2010)085

Evidence for C P Violation in the Decay D + K S 0 π +
journal, July 2012


Erratum: Measurements of direct C P violation, C P T symmetry, and other parameters in the neutral kaon system [Phys. Rev. D 67, 012005 (2003)]
journal, October 2004


Search for C P violation in the decay D ± K S 0 π ±
journal, April 2011


Renormalization group evolution of the Standard Model dimension six operators II: Yukawa dependence
journal, January 2014

  • Jenkins, Elizabeth E.; Manohar, Aneesh V.; Trott, Michael
  • Journal of High Energy Physics, Vol. 2014, Issue 1
  • DOI: 10.1007/JHEP01(2014)035

The anatomy of in the standard model
journal, June 1990


C P Asymmetries in Charm Decays into Neutral Kaons
journal, October 2017


Progress in Electroweak Baryogenesis
journal, December 1993


K π vector form factor constrained by τ → Kπντ and K l3 decays
journal, September 2010

  • Boito, D. R.; Escribano, R.; Jamin, M.
  • Journal of High Energy Physics, Vol. 2010, Issue 9
  • DOI: 10.1007/JHEP09(2010)031

A ‘known’ CP asymmetry in τ decays
journal, October 2005


Averages of b-hadron, c-hadron, and $$\tau $$ τ -lepton properties as of summer 2016
journal, December 2017


A precision measurement of direct CP violation in the decay of neutral kaons into two pions
journal, September 2002


Model-independent constraints on Δ F = 2 operators and the scale of new physics
journal, March 2008


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