On effective actions of BPS branes and their higher derivative corrections

Hatefi, Ehsan

doi:10.1007/jhep05(2010)080

Cited by 30 publications

(120 citation statements)

References 70 publications

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“…One might find various results of BPS amplitudes in [32][33][34][35][36][37][38][39][40]. Given the literatures, we just start to look after all the correlation functions.…”

Section: Jhep03(2017)019mentioning

confidence: 99%

Remarks on non-BPS string amplitudes and their all order α′ contact interactions in IIB, IIA

Hatefi¹

2017

J. High Energ. Phys.

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Abstract:We explore the entire form of S-Matrix elements of a potential C n−1 RamondRamond (RR) form field, a tachyon and two transverse scalar fields on both world volume and transverse directions of type IIB and IIA superstring theories. Apart fromWe then start to compare all singularity structures of symmetric and asymmetric analysis, generating all infinite singularity structures as well as all order α ′ contact interactions on the whole directions. This leads to deriving various new contact terms and several new restricted Bianchi identities in both type IIB and IIA. It is also shown that just some of the new couplings of type IIB (IIA) string theory can be re-verified in an Effective Field Theory (EFT) by pull-back of branes. To construct the rest of S-matrix elements one needs to first derive restricted world volume (or bulk) Bianchi identities and then discover new EFT couplings in both type IIB and IIA. Finally the presence of commutator of scalar fields inside the exponential of Wess-Zumino action for non-BPS branes has been confirmed as well.

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“…One might find various results of BPS amplitudes in [32][33][34][35][36][37][38][39][40]. Given the literatures, we just start to look after all the correlation functions.…”

Section: Jhep03(2017)019mentioning

confidence: 99%

Remarks on non-BPS string amplitudes and their all order α′ contact interactions in IIB, IIA

Hatefi¹

2017

J. High Energ. Phys.

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“…Whereas the effective action for a bosonic brane given by [13] and naturally its supersymmetric one was written down by [14][15][16][17][18]. One could read off a review of all the DBI, Wess-Zumino and Chern-Simons action just for BPS branes from [19]. On the other hand, to reveal more about three standard ways of effective field theory of the D-brane action (which contain Taylor expansion-Myers Terms and Pull back), and to learn more about all sorts of higher derivative corrections of non-BPS and BPS branes , we advise the section five of [20].…”

Section: Jhep12(2015)124mentioning

confidence: 99%

“…For the precise definitions of the expansions and more kinematical definitions and identities, one needs to look at [19,35].…”

Section: Jhep12(2015)124mentioning

confidence: 99%

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On RR couplings, singularity structures and all order α′ contact interactions to BPS string amplitudes

Hatefi

2015

J. High Energ. Phys.

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Abstract:We evaluate five point world-sheet string theory amplitudes of one transverse scalar field, two world volume gauge fields ( and two transverse scalars, a gauge field) in the presence of a closed string Ramond-Ramond vertex operator in its symmetric picture. We carry out all the entire S-matrix elements of five point mixed RR-scalars/gauge fields C −1 φ 0 A −1 A 0 , C −1 φ −1 A 0 A 0 , C −1 A 0 φ −1 φ 0 and C −1 A −1 φ 0 φ 0 in detail and start comparing all order α ′ contact interactions and singularities in both transverse and world volume directions. We explore the presence of various new couplings in string theory effective actions and find out their all order α ′ higher derivative corrections in both type IIA and IIB. Ultimately we make various remarks for the singularities and contact terms whose RR momenta are embedded in transverse directions. α ′ corrections to some of Myers terms are also addressed.

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“…In fact it is explained in detail that for BPS (non-BPS) branes all the corrections to D-brane effective actions can just be derived by having the entire form of S-matrix and not by any other tools like T-duality transformation. The reason for this sharp conclusion is that by having the S-matrix we are able to actually fix all the coefficients of the effective field theory couplings (and also their higher order α corrections) without any ambiguities (see [11,12] for BPS and [13,14] for non-BPS branes). In fact, all the three different ways of obtaining the couplings in the effective field theory involving pull-back, Taylor expansions and new Wess-Zumino terms (the generalisation to Myers action) have also been explained in [11].…”

Section: Introductionmentioning

confidence: 99%

Remarks on the mixed Ramond–Ramond, open string scattering amplitudes of BPS, non-BPS and brane–anti-brane

Hatefi

2015

Eur. Phys. J. C

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From the world-sheet point of view we compute three, four and five point BPS and non-BPS scattering amplitudes of type IIA and IIB superstring theory. All these mixed S-matrix elements including a RamondRamond closed string (RR) in the bulk and a scalar/gauge or tachyons with all different pictures (including an RR in asymmetric and symmetric pictures) have been carried out. We have also shown that in asymmetric pictures various equations must be kept fixed. More importantly, by direct calculations on the upper half plane, it is realised that some of the equations (which must be true) for BPS branes cannot be necessarily applied to non-BPS amplitudes. We also derive the S-matrix elements of V −2T and clarify the fact that in the presence of the scalar field and an RR, the terms carrying momentum of an RR in the transverse directions play an important role in the entire form of the S-matrix and their presence is needed in order to have gauge invariance for the entire S-matrix elements of type IIA (IIB) superstring theory.

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On effective actions of BPS branes and their higher derivative corrections

Cited by 30 publications

References 70 publications

Remarks on non-BPS string amplitudes and their all order α′ contact interactions in IIB, IIA

Remarks on non-BPS string amplitudes and their all order α′ contact interactions in IIB, IIA

On RR couplings, singularity structures and all order α′ contact interactions to BPS string amplitudes

Remarks on the mixed Ramond–Ramond, open string scattering amplitudes of BPS, non-BPS and brane–anti-brane

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