2010

Constraints on two-lepton, two quark operators

Carpentier, Michael, Davidson, Sacha

Understand

Physics from beyond the Standard Model, such as leptoquarks, can induce four fermion operators involving a quark, an anti-quark, a lepton and an anti-lepton.

We update the (flavour dependent) constraints on the coefficients of such interactions, arising from collider searches for contact interactions, meson decays and other rare processes.
We then make naive estimates for the magnitude of the coefficients, as could arise in texture models or from inverse hierarchies in the kinetic term coefficients.
These estimates suggest that rare Kaon decays could be a good place to look for such operators.

Built on

M. K. Gaillard and B. W. Lee, “Rare decay modes of the K-Mesons in gauge theories,” Phys. Rev. D 10
1974
Earlier work this paper cites.
R. N. Cahn and H. Harari, “Bounds On The Masses Of Neutral Generation Changing Gauge Bosons,” Nucl. Phys. B 176
1980
Earlier work this paper cites.
E. Eichten, K. D. Lane and M. E. Peskin, “New Tests For Quark And Lepton Substructure,” Phys. Rev. Lett. 50
1983
Earlier work this paper cites.
R. J. Cashmore et al
1985
Earlier work this paper cites.
W. Buchmüller and D. Wyler, “Effective Lagrangian analysis of new Interactions and flavor conservation,” Nucl. Phys. B 268
1986
Earlier work this paper cites.
W. Buchmuller and D. Wyler, “Constraints on SU(5) Type Leptoquarks,” Phys. Lett. B 177
1986
Earlier work this paper cites.
A. J. Buras, P. Gambino, M. Gorbahn, S. Jager and L. Silvestrini, Phys. Lett. B 500
1987
Earlier work this paper cites.
T. P. Cheng and M. Sher, “Mass Matrix Ansatz and Flavor Nonconservation in Models with Multiple Higgs Doublets,” Phys. Rev. D 35
1987
Earlier work this paper cites.
T.P. Cheng and L.F. Li, Gauge theory of elementary particle physics, Oxford: Clarendon Press (Oxford Science Publications) (1989)
1989
Earlier work this paper cites.
C. Dohmen et al
1993
Earlier work this paper cites.
S. Davidson, D. C. Bailey and B. A. Campbell, “Model independent constraints on leptoquarks from rare processes,” Z. Phys. C 61
1994
Earlier work this paper cites.
M. Leurer, “Bounds on vector leptoquarks,” Phys. Rev. D 50
1994
Earlier work this paper cites.
M. Leurer, “A Comprehensive study of leptoquark bounds,” Phys. Rev. D 49
1994
Earlier work this paper cites.
Expt: G. Czapek et al
1994
Earlier work this paper cites.
G. Bhattacharyya, J. R. Ellis and K. Sridhar, “Bounds on the masses and couplings of leptoquarks from leptonic partial widths of the Z Z ,” Phys. Lett. B 336
1995
Earlier work this paper cites.
A. Pich and J. P. Silva, “Constraining new interactions with leptonic τ \tau decays,” Phys. Rev. D 52
1995
Earlier work this paper cites.
M. E. Peskin and D. V. Schroeder, “An Introduction To Quantum Field Theory,” Reading, USA: Addison-Wesley (1995) 842 p
1995
Earlier work this paper cites.
Y. Grossman, “Nonstandard Neutrino Interactions And Neutrino Oscillation Experiments,” Phys. Lett. B 359
1995
Earlier work this paper cites.
K. m. Cheung, “Muon anomalous magnetic moment and leptoquark solutions,” Phys. Rev. D 64
1996
Earlier work this paper cites.
F. Abe et al
1997
Earlier work this paper cites.
A. E. Nelson, “Contact terms, compositeness, and atomic parity violation,” Phys. Rev. Lett. 78
1997
Earlier work this paper cites.
W. Buchmuller and D. Wyler, “Constraints on the universal contact interaction,” Phys. Lett. B 407
1997
Earlier work this paper cites.

Similar

N. Di Bartolomeo and M. Fabbrichesi, “Four-fermion effective interactions and recent data at HERA,” Phys. Lett. B 406
1997
Cited alongside, same era.
J. Blumlein, “On the expectations for leptoquarks in the mass range of O (200-GeV),” Z. Phys. C 74
1997
Cited alongside, same era.
K. S. McFarland et al
1998
Cited alongside, same era.
V. D. Barger, K. m. Cheung, K. Hagiwara and D. Zeppenfeld, “Global study of electron quark contact interactions,” Phys. Rev. D 57
1998
Cited alongside, same era.
O. U. Shanker, “Z Dependence Of Coherent Mu E Conversion Rate In Anomalous Neutrinoless Muon Capture,” Phys. Rev. D 20
1998
Cited alongside, same era.
A. F. Zarnecki, “Global analysis of e e q q eeqq contact interactions and future prospects for high-energy physics,” Eur. Phys. J. C 11
1999
Cited alongside, same era.
W. Buchmüller, R. Rückl and D. Wyler, “Leptoquarks in lepton quark collisions,” Phys. Lett. B 191
1999
Cited alongside, same era.
J. P. Saha, B. Misra and A. Kundu, “Constraining Scalar Leptoquarks from the K and B Sectors,” arXiv:1003.1384 [Unknown]. C. S. Kim, J. Lee and W. Namgung, “CP violation in the semileptonic B(l4) (B –¿ D pi l nu) decays: Multi-Higgs doublet model and scalar-leptoquark models,” Phys. Rev. D 59
Original
1999
Cited alongside, same era.
E. Gabrielli, “Model independent constraints on leptoquarks from MU and TAU lepton rare processes,” Phys. Rev. D 62
2000
Cited alongside, same era.
N. Arkani-Hamed and M. Schmaltz, Phys. Rev. D 61
2000
Cited alongside, same era.
K. m. Cheung, “Constraints on electron quark contact interactions and implications to models of leptoquarks and extra Z Z bosons,” Phys. Lett. B 517
2001
Cited alongside, same era.
G. D’Ambrosio, G. F. Giudice, G. Isidori and A. Strumia, Nucl. Phys. B 645
2002
Cited alongside, same era.

Then

S. Schael et al
2007
Later among the works it cites.
X. G. He and G. Valencia, “ D D - D ¯ \bar{D} mixing constraints on FCNC with a non-universal Z ′ Z^{\prime} ,” Phys. Lett. B 651
2007
Later among the works it cites.
A. D. Smirnov, Mod. Phys. Lett. A 22
Original
2007
Later among the works it cites.
A. K. Alok, A. Dighe, D. Ghosh, D. London, J. Matias, M. Nagashima and A. Szynkman, “New-physics contributions to the forward-backward asymmetry in B -¿ K* mu+ JHEP 1002
Original
2007
Later among the works it cites.
E. Golowich, J. Hewett, S. Pakvasa and A. A. Petrov, “Implications of D 0 D^{0} - D ¯ 0 \bar{D}^{0} Mixing for New Physics,” Phys. Rev. D 76
Original
2007
Later among the works it cites.
R. D. Young, R. D. Carlini, A. W. Thomas and J. Roche, “Testing the Standard Model by precision measurement of the weak charges of quarks,” Phys. Rev. Lett. 99
Original
2007
Later among the works it cites.
V. Cirigliano, B. Grinstein, G. Isidori and M. B. Wise, “Minimal flavor violation in the lepton sector,” Nucl. Phys. B 728
Original
2007
Later among the works it cites.
M. Raidal et al
2008
Later among the works it cites.
A. V. Artamonov et al
Original
2008
Later among the works it cites.
C. Bernard et al
Original
2008
Later among the works it cites.
E. Gamiz, M. Jamin, A. Pich, J. Prades and F. Schwab, “Theoretical progress on the V u s V_{us} determination from tau decays,” PoS KAON
Original
2008
Later among the works it cites.
R. Benbrik and C. K. Chua, “Lepton Flavor Violating l → l ′ γ l\to l^{\prime}\gamma and Z → l l ¯ ′ Z\to l\bar{l}^{\prime} Decays Induced by Scalar Leptoquarks,” Phys. Rev. D 78
Original
2008
Later among the works it cites.
S. Davidson, G. Isidori and S. Uhlig, “Solving the flavour problem with hierarchical fermion wave functions,” Phys. Lett. B 663
Original
2008
Later among the works it cites.
R. Ciesielski [H1 and ZEUS Collaborations], “Search for leptoquarks and contact interactions at HERA,” PoS E PS-HEP2009
2009
Later among the works it cites.
B. A. Dobrescu and A. S. Kronfeld, “Accumulating evidence for nonstandard leptonic decays of D s D_{s} mesons,” Phys. Rev. Lett. 100
Original
2009
Later among the works it cites.
M. A. Doncheski and R. W. Robinett, “Leptoquark production in ultrahigh-energy neutrino interactions revisited,” Phys. Rev. D 56
Original
2009
Later among the works it cites.
C. Biggio, M. Blennow and E. Fernandez-Martinez, “General bounds on non-standard neutrino interactions,” JHEP 0908
Original
2009
Later among the works it cites.
C. Amsler et al
2010
Closest in time.
E. Salvioni, A. Strumia, G. Villadoro and F. Zwirner, “Non-universal minimal Z’ models: present bounds and early LHC reach,” JHEP 1003
Original
2010
Closest in time.
A. Matsuzaki, “General Analysis of B B Meson Decay into Two Fermions,” Prog. Theor. Phys. 123
Original
2010
Closest in time.
V. Cirigliano, J. Jenkins and M. Gonzalez-Alonso, “Semileptonic decays of light quarks beyond the Standard Model,” Nucl. Phys. B 830
Original
2010
Closest in time.

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