Constraining supersymmetric models from<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>B</mml:mi></mml:mrow><mml:mrow><mml:mi>d</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>−</mml:mo><mml:mrow><mml:msub><mml:mrow><mml:mi>B</mml:mi></mml:mrow><mml:mrow><mml:mi>d</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>mixing and the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>B</

Gabrielli, Emidio; Khalil, S.

doi:10.1103/physrevd.67.015008

Cited by 26 publications

(14 citation statements)

References 36 publications

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“…Different FCNC effects are parametrized in terms of δ in our notation means (δ d 13 ) AB in the more conventional notation; there is, however, no chance of confusion since we do not deal with the δ u parameters.) The same thing can be said for the up-quark sector by considering the chargino contributions [10].…”

Section: R-parity Conserving Susymentioning

confidence: 94%

Reevaluating bounds on flavor-changing neutral current parameters inR-parity conserving andR-parity violating supersymmetry fromB0−B¯0
Saha
¹
,
Kundu
²

2004
Phys. Rev. D
16
1
6
1
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We perform a systematic reevaluation of the constraints on the flavor-changing neutral current (FCNC) parameters in R-parity conserving and R-parity violating supersymmetric models. As a typical process, we study the constraints coming from the measurements on the B 0 -B 0 system on the supersymmetric δ d 13 parameters, as well as on the products of the λ ′ type R-parity violating couplings. Present data allows us to put constraints on both the real and the imaginary parts of the relevant parameters.

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Section: R-parity Conserving Susymentioning

confidence: 94%

Reevaluating bounds on flavor-changing neutral current parameters inR-parity conserving andR-parity violating supersymmetry fromB0−B¯0
Saha
¹
,
Kundu
²

2004
Phys. Rev. D
16
1
6
1
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show abstract

“…The effects of the complex down-type mass insertion parameters of the (23) and (13) 33) where f denotes the final state of the decay and A is the corresponding amplitude. As the absorptive part Γ …”

Section: B Q −B Q Mixingmentioning

confidence: 99%

Phenomenological implications of anSU(5)×S4×U(1)SUSY

2016

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We discuss the characteristic low energy phenomenological implications of an SU (5) Supersymmetric Grand Unified Theory (SUSY GUT) whose flavour structure is controlled by the family symmetry S 4 × U (1), which provides a good description of all quark and lepton masses, mixings as well as CP violation. Although the model closely mimics Minimal Flavour Violation (MFV) as shown in [1], here we focus on the differences. We first present numerical estimates of the low energy mass insertion parameters, including canonical normalisation and renormalisation group running, for well-defined ranges of SUSY parameters and compare the naive model expectations to the numerical scans and the experimental bounds. Our results are then used to estimate the model-specific predictions for Electric Dipole Moments (EDMs), Lepton Flavour Violation (LFV), B and K meson mixing as well as rare B decays. The largest observable deviations from MFV come from the LFV process µ → eγ and the electron EDM. *

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“…Flowingly, it has been shown that the effect from the SUSY particles in the box diagram which leads to the B 0 − B 0 mixing is typically small [4]. On the contrary, in summer 2002, the B factory experiments reported a surprising result for the measurement of β by using the B → φK S process.…”

mentioning

confidence: 97%

Possible Supersymmetric Solution to the Discrepancy betweenB→ϕKSandB→η′KS
Khalil
¹
,
Kou
²

2003
Phys. Rev. Lett.
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54
0
55
1
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We present a possible supersymmetric solution to the discrepancy between the observed mixing CP asymmetries in B → φKS and B → η ′ KS. We show that due to the different parity in the final states of these processes, their supersymmetric contributions from the R-sector have an opposite sign, which naturally leads to S φK S = S η ′ K S . We also consider the proposed mechanisms to solve the puzzle of the observed large branching ratio of B → η ′ K and their impact on S η ′ K S .Various measurements of CP violation in B factory experiments have been opening a new era for the phenomenology of supersymmetric (SUSY) models. While in the standard model (SM), all the CP violating phenomena have to be explained by a single phase in the CabbiboKobayashi-Maskawa matrix, the SUSY models include additional new sources of CP violation. Since these new effects can manifest themselves in the CP asymmetries of various B-meson decays, the recent observed large discrepancy among the CP asymmetries of B → J/ψK S , B → φK S and B → η ′ K S have raised high expectations for indirectly unveiling low energy SUSY [1].The measurement of the angle of the unitarity triangle β(φ 1 ) by the so-called golden mode B → J/ψK S [2,3]:is in a good agreement with the other measurements based on the standard model analysis. Flowingly, it has been shown that the effect from the SUSY particles in the box diagram which leads to the B 0 − B 0 mixing is typically small [4]. On the contrary, in summer 2002, the B factory experiments reported a surprising result for the measurement of β by using the B → φK S process. Since in the SM, B → J/ψK S and B → φK S have the same B 0 − B 0 mixing part and do not have any additional CP violating phase in the decay process, the same value of sin 2β was expected to be extracted from them. Thus, the discovered large discrepancy [5,3]has created quite a stir. Several efforts to explain this experimental data, in particular, by using SUSY models, have been made. In Ref.[6], it has been shown that this phenomena can be understood without contradicting the smallness of the SUSY effect on B → J/ψK S in the framework of the mass insertion approximation which allows us to perform a model independent analysis of the SUSY breakings [7]. In this approximation, SUSY contributions are proportional to the mass insertions (δ d ij ) AB where i, j and A, B are the generation and chirality indices, respectively. While the measurement of B → J/ψK S implies the smallness of (δ d 13 ) AB , (A, B = L, R), the different generation mass insertion contributing to the B → φK S process, (δ d 23 ) AB , can deviate S φKS from S J/ψKS . In this letter, we discuss another measurement of sin 2β [3,8] S η ′ KS = 0.33 ± 0.34 (3) which has been thought to be problematic [1]. Since B → η ′ K S gets contributions from (δ d 23 ) AB , S η ′ KS and S φKS were expected to display similar discrepancy from S J/ψKS . We will first show that although the magnitude of the SUSY contributions to these processes are indeed similar, B → η ′ K S has an opposite sign i...

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Constraining supersymmetric models fromBd−Bdmixing and theB

Cited by 26 publications

References 36 publications

Reevaluating bounds on flavor-changing neutral current parameters inR-parity conserving andR-parity violating supersymmetry fromB0−B¯0
Saha
¹
,
Kundu
²

2004
Phys. Rev. D
16
1
6
1
View full text Add to dashboard Cite

Reevaluating bounds on flavor-changing neutral current parameters inR-parity conserving andR-parity violating supersymmetry fromB0−B¯0
Saha
¹
,
Kundu
²

2004
Phys. Rev. D
16
1
6
1
View full text Add to dashboard Cite

Phenomenological implications of anSU(5)×S4×U(1)SUSY

Possible Supersymmetric Solution to the Discrepancy betweenB→ϕKSandB→η′KS
Khalil
¹
,
Kou
²

2003
Phys. Rev. Lett.
Self Cite
54
0
55
1
View full text Add to dashboard Cite

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Constraining supersymmetric models fromBd−Bdmixing and theB

Cited by 26 publications

References 36 publications

Reevaluating bounds on flavor-changing neutral current parameters inR-parity conserving andR-parity violating supersymmetry fromB0−B¯0Saha1, Kundu2 2004Phys. Rev. D16161View full textAdd to dashboardCite

Reevaluating bounds on flavor-changing neutral current parameters inR-parity conserving andR-parity violating supersymmetry fromB0−B¯0Saha1, Kundu2 2004Phys. Rev. D16161View full textAdd to dashboardCite

Phenomenological implications of anSU(5)×S4×U(1)SUSY

Possible Supersymmetric Solution to the Discrepancy betweenB→ϕKSandB→η′KSKhalil1, Kou2 2003Phys. Rev. Lett.Self Cite540551View full textAdd to dashboardCite

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About

Reevaluating bounds on flavor-changing neutral current parameters inR-parity conserving andR-parity violating supersymmetry fromB0−B¯0
Saha
¹
,
Kundu
²

2004
Phys. Rev. D
16
1
6
1
View full text Add to dashboard Cite

Reevaluating bounds on flavor-changing neutral current parameters inR-parity conserving andR-parity violating supersymmetry fromB0−B¯0
Saha
¹
,
Kundu
²

2004
Phys. Rev. D
16
1
6
1
View full text Add to dashboard Cite

Possible Supersymmetric Solution to the Discrepancy betweenB→ϕKSandB→η′KS
Khalil
¹
,
Kou
²

2003
Phys. Rev. Lett.
Self Cite
54
0
55
1
View full text Add to dashboard Cite