Adding matter to Poincaré invariant branes

Grinstein, Benjamı́n; Nolte, Detlef R.; Skiba, Witold

doi:10.1103/physrevd.62.086006

Cited by 34 publications

(50 citation statements)

References 28 publications

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“…This selftuning mechanism, first suggested in refs. [37,38], has been the subject of a great deal of debate in the context of supergravity models where U and V are derived from the same super-potential (see also [39,40]). Unfortunately, it appears [41] that no such supersymmetric model exists without the a naked singularity somewhere in the bulk.…”

Section: Effective 4d Equationsmentioning

confidence: 99%

Cosmological expansion on a dilatonic brane-world

Mennim¹,

Battye²

2001

Class. Quantum Grav.

113

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In this paper we study brane-world scenarios with a bulk scalar field, using a covariant formalism to obtain a 4D Einstein equation via projection onto the brane. We discuss, in detail, the effects of the bulk on the brane and how the scalar field contribute to the gravitational effects. We also discuss choice of conformal frame and show that the frame selected by the induced metric provides a natural choice. We demonstrate our formalism by applying it to cosmological scenarios of Randall-Sundrum and Hořava-Witten type models. Finally we consider the cosmology of models where the scalar field couples non-minimally to the matter on the brane. This gives rise to a novel scenario where the universe expands from a finite scale factor with an initial period of accelerated expansion, thus avoiding the singularity and flatness problem of the standard big bang model.

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Section: Effective 4d Equationsmentioning

confidence: 99%

Cosmological expansion on a dilatonic brane-world

Mennim¹,

Battye²

2001

Class. Quantum Grav.

113

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“…In principle, photon emission from the initial light-quark is a non-perturbative, long-distance, contamination to the interesting signal of the short-distance dipole emission from H eff [76,77]. Fortunately, it can be shown [75] that predominantly these LD photons have the same helicity as those from H eff .…”

Section: G Time-dependent Cp Asymmetries In Exclusive Radiative B Dementioning

confidence: 99%

Null tests of the Standard Model at an International SuperBFactory

Gershon

Soni

2007

J. Phys. G: Nucl. Part. Phys.

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In light of the results from the B factories, which clearly show that the Cabibbo-Kobayashi-Maskawa mechanism is the dominant source of the observed CP violation in K and B physics, only small deviations due to sources of CP violation beyond the Standard Model are likely. Therefore, in the quest for New Physics, null tests of the Standard Model become increasingly important. Motivated by these considerations, we describe a number of approximate null tests of the Standard Model. These tests provide several theoretically clean approaches to searching for new physics in the B system. We find that in many cases, the requisite sensitivity can only be achieved with an International Super B Factory, with luminosity around 10 36 cm −2 s −1 .

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“…The reason for including this class of power corrections is that they come with numerical enhancement from the large Wilson coefficients C 1,2 (C 1 ≈ 3C 7 ) but are CKM suppressed and thus these contributions are expected to be very small for the decay under consideration. The amplitude for charged B meson decay in terms of Weak annihilation A, charmed penguin P c , gluonic penguin M and short distance amplitude P t can be written as [following the notation of [18]]…”

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confidence: 99%

Annihilation contributions in B→K1γ decay in next-to-leading order in LEET and CP-asymmetry

Aslam

2006

Eur. Phys. J. C

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The effect of weak annihilation and u-quark penguin contribution on the branching ratio B → K 1 γ at next-to-leading order of α s are calculated using LEET approach. It is shown that the value of LEET form factor remains the same in the range of unitarity triangle phase α favored by the Standard Model. CP-asymmetry for above mentioned decay has been calculated and its suppression due to the hard spectator correction has also been incorporated. In addition, the sensitivity of the CP-asymmetry on the underlying parameters has been discussed.

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Adding matter to Poincaré invariant branes

Cited by 34 publications

References 28 publications

Cosmological expansion on a dilatonic brane-world

Cosmological expansion on a dilatonic brane-world

Null tests of the Standard Model at an International SuperBFactory

Annihilation contributions in B→K1γ decay in next-to-leading order in LEET and CP-asymmetry

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