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Light stringy states

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Abstract

We carefully study the spectrum of open strings localized at the intersections of D6-branes and identify the lowest massive ‘twisted’ states and their vertex operators, paying particular attention to the signs of the intersection angles. We argue that the masses of the lightest states scale as \( M_{\theta }^2 \approx \theta M_s^2 \) and can thus be parametrically smaller than the string scale. Relying on previous analyses, we compute scattering amplitudes of massless ‘twisted’ open strings and study their factorization, confirming the presence of the light massive states as sub-dominant poles in one of the channels.

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Authors and Affiliations

  1. Technische Univ. Wien Inst. für Theoretische Physik, A-1040, Vienna, Austria

    Pascal Anastasopoulos

  2. Dipartimento di Fisica & Sezione I.N.F.N, Università di Roma “Tor Vergata”, Via della Ricerca Scientica, 00133, Roma, Italy

    Massimo Bianchi & Robert Richter

  3. II. Institut für Theoretische Physik, Hamburg University, Hamburg, Germany

    Robert Richter

Authors
  1. Pascal Anastasopoulos
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  2. Massimo Bianchi
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  3. Robert Richter
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Correspondence to Robert Richter.

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ArXiv ePrint: 1110.5424

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Anastasopoulos, P., Bianchi, M. & Richter, R. Light stringy states. J. High Energ. Phys. 2012, 68 (2012). https://doi.org/10.1007/JHEP03(2012)068

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