TY  - JOUR
A1  - Hossenfelder, Sabine
A1  - Bleicher, Marcus
A1  - Hofmann, Stefan Josef
A1  - Ruppert, Jörg
A1  - Scherer, Stefan
A1  - Stöcker, Horst
T1  - Signatures in the Planck regime
T2  - Physics Letters B
N2  - String theory suggests the existence of a minimum length scale. An exciting quantum mechanical implication of this feature is a modification of the uncertainty principle. In contrast to the conventional approach, this generalised uncertainty principle does not allow to resolve space–time distances below the Planck length. In models with extra dimensions, which are also motivated by string theory, the Planck scale can be lowered to values accessible by ultra high energetic cosmic rays (UHECRs) and by future colliders, i.e., Mf≈ 1 TeV. It is demonstrated that in this novel scenario, short distance physics below 1/Mf is completely cloaked by the uncertainty principle. Therefore, Planckian effects could be the final physics discovery at future colliders and in UHECRs. As an application, we predict the modifications to the e+e−→f+f− cross-sections.
Y1  - 2003
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/76102
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-761022
SN  - 0370-2693
VL  - 575
IS  - 1
SP  - 85
EP  - 99
PB  - North-Holland Publ.
CY  - Amsterdam [u.a.]
ER  -