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Let , ux ∗ good l as vie Notes m [26 = f er the F L ution formula get estimate 2 some e v is that m N In In • • gral.  we helpful the ∗ L This solutions where where Lectur where with gets structure approximating proposed Ho sheds says inte written distrib to be PoS(RTN2005)001 to on we just e ating e possi- lik v princi- alue xcluded y anthrop- ha e v estig School cosmolog- v ould man Blumenhagen in w the some I the on inter y almost tuned" anthropic W Ralph wh i.e. parameters from carry "fine weak TN instance R lectures. rare, and the xplain the for ysical e e e the v should ph lik these ha of with problems the one might realized xtremely e and are This present picture are anizers tuning where constant g quantities to or acua one fine v matter me manusscript. forms. the 20 ysical / this the landscape life ph properties vite theory in e in 001 the thank so-called cosmological to en about to on certain (meta-)stable string the e means. spok a of e intelligent lik all Fluxes light in combine lik standard-lik e Theories w been v ution orld comments li with ould ne also theory possible almost that a w has to I all can Gauge distrib ord useful quantities meta-w string Models about w one with and vidence of for happen , e ane shedding some bring final ysical vity uniform and acua v D-br in to a ph no gra eig course on for W that of wledgements: statistical constant, alsification alues string f v Super gue we course imo Notes of e. essential → ical find ar T philosophically e Of Ackno saying • • set right thank Lectur ically the observ Strings, the bilities, ple, More PoS(RTN2005)001 . ” ” with RR D68 . models Lett. Class. v (2004) and (2004) ” Re . B480 52 . D6-branes, (2000) 21 Phys. . Blumenhagen ” IIB manifolds D-brane av NSNS Phys. (1995) Phys. Phys. B584 orientifold ” au Gr , D-branes, Ralph h. and 75 hep-th/0204089 IIB compactifications, simple space-time Nucl. intersecting Phys. a breaking, theory ” ortsc Lett. Quant. F . in type Calabi-Y intersecting v four ” string , with 1–150, es . D-branes Nucl. Re in string intersecting and hep-th/9602052 ” angles, and . hep-th/0412025 Class. ” chiral flux es in at ” ” K3 . with six in realistic with Phys. (2002) flux of ” -folds, in from acua cosmology ard v supersymmetry acua 371 orientifolds v w ges, . models, four model?, o from D-Branes, and . 324–328. au “T IIA . Sitter on intersecting theories Char . 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(1996) (2003) 69–108, orientifold, B474 E. L. T D. A. F R. R. J. S. J. E. R. S. J. R. M. J. S. T C. S. [4] [5] [3] [6] [1] [2] [7] [8] [9] Lectur Refer [16] [22] [15] [14] [20] [10] [21] [13] [11] [17] [18] [12] [19] PoS(RTN2005)001 . ” . . Blumenhagen stabilization, Ralph hep-th/0303194 moduli 072, 041, hep-th/0307049 046, and hep-th/0408059 ” 060, (2004) (2004) (2003) 05 11 D-branes 05 (2004) with 01 JHEP JHEP JHEP ” ” ” acua v compactifications, JHEP acua, acua, acua, ” v v v 22 flux / string flux acua, flux v 4d of 001 from theory flux M / MSSM acua utions v “Chiral a, Fluxes string of “Counting “Distrib with “Building “MSSM Urang M. Shiu, Shiu, statistics A. Models . . . Douglas, Douglas, G. G. R. and ane R. “The and and M. M. D-br and and on Cascales Douglas, G. R. . Notes Ashok Marchesano Marchesano Denef F . . . e hep-th/0409132 hep-th/0404116 hep-th/0311250 F F F M. J. S. [24] Lectur [23] [25] [27] [28] [26]