### Abstract

In a brane (domain wall) scenario with infinite extra dimensions and localized gravity, bulk fermions and scalars often have bound states with a zero four-dimensional mass. In this way, massless matter residing on the brane may be obtained. We consider what happens when one tries to introduce a small, but nonvanishing mass to these matter fields. We find that the discrete zero modes turn into quasilocalized states with a finite four-dimensional mass and finite width. The latter is due to tunneling of massive matter into extra dimensions. We argue that this phenomenon is generic to fields that can have bulk modes. We also point out that, in theories meant to describe massive scalars, the four-dimensional scalar potential has, in fact, a power-law behavior at large distances.

Original language | English (US) |
---|---|

Article number | 105011 |

Pages (from-to) | 1-6 |

Number of pages | 6 |

Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |

Volume | 62 |

Issue number | 10 |

State | Published - Nov 15 2000 |

### Fingerprint

### ASJC Scopus subject areas

- Physics and Astronomy(all)
- Nuclear and High Energy Physics
- Mathematical Physics
- Physics and Astronomy (miscellaneous)

### Cite this

*Physical Review D - Particles, Fields, Gravitation and Cosmology*,

*62*(10), 1-6. [105011].

**Brane world : Disappearing massive matter.** / Dubovsky, S. L.; Rubakov, V. A.; Tinyakov, P. G.

Research output: Contribution to journal › Article

*Physical Review D - Particles, Fields, Gravitation and Cosmology*, vol. 62, no. 10, 105011, pp. 1-6.

}

TY - JOUR

T1 - Brane world

T2 - Disappearing massive matter

AU - Dubovsky, S. L.

AU - Rubakov, V. A.

AU - Tinyakov, P. G.

PY - 2000/11/15

Y1 - 2000/11/15

N2 - In a brane (domain wall) scenario with infinite extra dimensions and localized gravity, bulk fermions and scalars often have bound states with a zero four-dimensional mass. In this way, massless matter residing on the brane may be obtained. We consider what happens when one tries to introduce a small, but nonvanishing mass to these matter fields. We find that the discrete zero modes turn into quasilocalized states with a finite four-dimensional mass and finite width. The latter is due to tunneling of massive matter into extra dimensions. We argue that this phenomenon is generic to fields that can have bulk modes. We also point out that, in theories meant to describe massive scalars, the four-dimensional scalar potential has, in fact, a power-law behavior at large distances.

AB - In a brane (domain wall) scenario with infinite extra dimensions and localized gravity, bulk fermions and scalars often have bound states with a zero four-dimensional mass. In this way, massless matter residing on the brane may be obtained. We consider what happens when one tries to introduce a small, but nonvanishing mass to these matter fields. We find that the discrete zero modes turn into quasilocalized states with a finite four-dimensional mass and finite width. The latter is due to tunneling of massive matter into extra dimensions. We argue that this phenomenon is generic to fields that can have bulk modes. We also point out that, in theories meant to describe massive scalars, the four-dimensional scalar potential has, in fact, a power-law behavior at large distances.

UR - http://www.scopus.com/inward/record.url?scp=17044404283&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=17044404283&partnerID=8YFLogxK

M3 - Article

VL - 62

SP - 1

EP - 6

JO - Physical review D: Particles and fields

JF - Physical review D: Particles and fields

SN - 1550-7998

IS - 10

M1 - 105011

ER -