Monte Carlo studies for the optimisation of the Cherenkov Telescope Array layout by Acharyya, A, Agudo, I, Angüner, E, Alfaro, R, Alfaro, J, Alispach, C, Aloisio, R, Alves Batista, R, Amans, J, Amati, L, Amato, E, Ambrosi, G, Antonelli, L, Aramo, C, Armstrong, T, Arqueros, F, Arrabito, L, Asano, K, Ashkar, H, Balazs, C, Balbo, M, Balmaverde, B, Barai, P, Barbano, A, Barkov, M, Barres De Almeida, U, Barrio, J, Bastieri, D, Becerra González, J, Becker Tjus, J, Bellizzi, L, Benbow, W, Bernardini, E, Bernardos, M, Bernlöhr, K, Berti, A, Berton, M, Bertucci, B, Beshley, V, Biasuzzi, B, Bigongiari, C, Bird, R, Bissaldi, E, Biteau, J, Blanch, O, Blazek, J, Boisson, C, Bonanno, G, Bonardi, A, Bonavolontá, C, Bonnoli, G, Bordas, P, Böttcher, M, Bregeon, J, Brill, A, Brown, A, Brügge, K, Brun, P, Bruno, P, Bulgarelli, A, Bulik, T, Burton, M, Burtovoi, A, Busetto, G, Cameron, R, Canestrari, R, Capalbi, M, Caproni, A, Capuzzo-Dolcetta, R, Caraveo, P, Caroff, S, Carosi, R, Casanova, S, Cascone, E, Cassol, F, Catalani, F, Catalano, O, Cauz, D, Cerruti, M, Chaty, S, Chen, A, Chernyakova, M, Chiaro, G, Cieślar, M, Colak, S, Conforti, V, Congiu, E, Contreras, J, Cortina, J, Costa, A, Costantini, H, Cotter, G, Cristofari, P, Cumani, P, Spencer, S