### Abstract

We calculate the D-instanton corrections (with all D-instanton numbers) to the quantum moduli space metric of a single matter hypermultiplet with toric isometry, in the effective N = 2 supergravity arising in type IIA superstrings compactified on a Calabi-Yau (CY) threefold of Hodge number h_{2,1} = 1. The non-perturbative quaternionic hypermultiplet metric is derived by resolution of a complex orbifold singularity, thus generalizing the known (Ooguri-Vafa) solution in flat spacetime to N = 2 supergravity.

Original language | English |
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Pages (from-to) | 119-124 |

Number of pages | 6 |

Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |

Volume | 558 |

Issue number | 1-2 |

DOIs | |

Publication status | Published - 10 Apr 2003 |

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### ASJC Scopus subject areas

- Nuclear and High Energy Physics

### Cite this

**D-instantons and matter hypermultiplet.** / Ketov, Sergei V.

Research output: Contribution to journal › Article

*Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics*, vol. 558, no. 1-2, pp. 119-124. https://doi.org/10.1016/S0370-2693(03)00244-2

}

TY - JOUR

T1 - D-instantons and matter hypermultiplet

AU - Ketov, Sergei V.

PY - 2003/4/10

Y1 - 2003/4/10

N2 - We calculate the D-instanton corrections (with all D-instanton numbers) to the quantum moduli space metric of a single matter hypermultiplet with toric isometry, in the effective N = 2 supergravity arising in type IIA superstrings compactified on a Calabi-Yau (CY) threefold of Hodge number h2,1 = 1. The non-perturbative quaternionic hypermultiplet metric is derived by resolution of a complex orbifold singularity, thus generalizing the known (Ooguri-Vafa) solution in flat spacetime to N = 2 supergravity.

AB - We calculate the D-instanton corrections (with all D-instanton numbers) to the quantum moduli space metric of a single matter hypermultiplet with toric isometry, in the effective N = 2 supergravity arising in type IIA superstrings compactified on a Calabi-Yau (CY) threefold of Hodge number h2,1 = 1. The non-perturbative quaternionic hypermultiplet metric is derived by resolution of a complex orbifold singularity, thus generalizing the known (Ooguri-Vafa) solution in flat spacetime to N = 2 supergravity.

UR - http://www.scopus.com/inward/record.url?scp=0037430861&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0037430861&partnerID=8YFLogxK

U2 - 10.1016/S0370-2693(03)00244-2

DO - 10.1016/S0370-2693(03)00244-2

M3 - Article

VL - 558

SP - 119

EP - 124

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 1-2

ER -