%AAbreu, P.%AAglietta, M.%AAlbury, J.%AAllekotte, I.%AAlmela, A.%AAlvarez-Muñiz, J.%AAlves Batista, R.%AAnastasi, G.%AAnchordoqui, L.%AAndrada, B.%AAndringa, S.%AAramo, C.%AAraújo Ferreira, P.%AArteaga Velázquez, J.%AAsorey, H.%AAssis, P.%AAvila, G.%ABadescu, A.%ABakalova, A.%ABalaceanu, A.%ABarbato, F.%ABarreira Luz, R.%ABecker, K.%ABellido, J.%ABerat, C.%ABertaina, M.%ABertou, X.%ABiermann, P.%ABilloir, P.%ABinet, V.%ABismark, K.%ABister, T.%ABiteau, J.%ABlazek, J.%ABleve, C.%ABoháčová, M.%ABoncioli, D.%ABonifazi, C.%ABonneau Arbeletche, L.%ABorodai, N.%ABotti, A.%ABrack, J.%ABretz, T.%ABrichetto Orchera, P.%ABriechle, F.%ABuchholz, P.%ABueno, A.%ABuitink, S.%ABuscemi, M.%ABüsken, M.%ACaballero-Mora, K.%ACaccianiga, L.%ACanfora, F.%ACaracas, I.%ACarceller, J.%ACaruso, R.%ACastellina, A.%ACatalani, F.%ACataldi, G.%ACazon, L.%ACerda, M.%AChinellato, J.%AChudoba, J.%AChytka, L.%AClay, R.%ACobos Cerutti, A.%AColalillo, R.%AColeman, A.%AColuccia, M.%AConceição, R.%ACondorelli, A.%AConsolati, G.%AContreras, F.%AConvenga, F.%ACorreia dos Santos, D.%ACovault, C.%ADasso, S.%ADaumiller, K.%ADawson, B.%ADay, J.%Ade Almeida, R.%Ade Jesús, J.%Ade Jong, S.%ADe Mauro, G.%Ade Mello Neto, J.%ADe Mitri, I.%Ade Oliveira, J.%Ade Oliveira Franco, D.%Ade Palma, F.%Ade Souza, V.%ADe Vito, E.%Adel Río, M.%ADeligny, O.%ADi Matteo, A.%ADobrigkeit, C.%AD’Olivo, J.%ADomingues Mendes, L.%Ados Anjos, R.%Ados Santos, D.%ADova, M.%AEbr, J.%AEngel, R.%AEpicoco, I.%AErdmann, M.%AEscobar, C.%AEtchegoyen, A.%AFalcke, H.%AFarmer, J.%AFarrar, G.%AFauth, A.%AFazzini, N.%AFeldbusch, F.%AFenu, F.%AFick, B.%AFigueira, J.%AFilipčič, A.%AFitoussi, T.%AFodran, T.%AFreire, M.%AFujii, T.%AFuster, A.%AGalea, C.%AGalelli, C.%AGarcía, B.%AGarcia Vegas, A.%AGemmeke, H.%AGesualdi, F.%AGherghel-Lascu, A.%AGhia, P.%AGiaccari, U.%AGiammarchi, M.%AGlombitza, J.%AGobbi, F.%AGollan, F.%AGolup, G.%AGómez Berisso, M.%AGómez Vitale, P.%AGongora, J.%AGonzález, J.%AGonzález, N.%AGoos, I.%AGóra, D.%AGorgi, A.%AGottowik, M.%AGrubb, T.%AGuarino, F.%AGuedes, G.%AGuido, E.%AHahn, S.%AHamal, P.%AHampel, M.%AHansen, P.%AHarari, D.%AHarvey, V.%AHaungs, A.%AHebbeker, T.%AHeck, D.%AHill, G.%AHojvat, C.%AHörandel, J.%AHorvath, P.%AHrabovský, M.%AHuege, T.%AInsolia, A.%AIsar, P.%AJanecek, P.%AJohnsen, J.%AJurysek, J.%AKääpä, A.%AKampert, K.%AKarastathis, N.%AKeilhauer, B.%AKemp, J.%AKhakurdikar, A.%AKizakke Covilakam, V.%AKlages, H.%AKleifges, M.%AKleinfeller, J.%AKöpke, M.%AKunka, N.%ALago, B.%ALang, R.%ALangner, N.%ALeigui de Oliveira, M.%ALenok, V.%ALetessier-Selvon, A.%ALhenry-Yvon, I.%ALo Presti, D.%ALopes, L.%ALópez, R.%ALu, L.%ALuce, Q.%ALundquist, J.%AMachado Payeras, A.%AMancarella, G.%AMandat, D.%AManning, B.%AManshanden, J.%AMantsch, P.%AMarafico, S.%AMariazzi, A.%AMariş, I.%AMarsella, G.%AMartello, D.%AMartinelli, S.%AMartinez, H.%AMartínez Bravo, O.%AMastrodicasa, M.%AMathes, H.%AMatthews, J.%AMatthiae, G.%AMayotte, E.%AMazur, P.%AMedina-Tanco, G.%AMelo, D.%AMenshikov, A.%AMerenda, K.-D.%AMichal, S.%AMicheletti, M.%AMiramonti, L.%AMockler, D.%AMollerach, S.%AMontanet, F.%AMorello, C.%AMostafá, M.%AMüller, A.%AMuller, M.%AMulrey, K.%AMussa, R.%AMuzio, M.%ANamasaka, W.%ANasr-Esfahani, A.%ANellen, L.%ANiculescu-Oglinzanu, M.%ANiechciol, M.%ANitz, D.%ANosek, D.%ANovotny, V.%ANožka, L.%ANucita, A.%ANúñez, L.%APalatka, M.%APallotta, J.%APapenbreer, P.%AParente, G.%AParra, A.%APawlowsky, J.%APech, M.%APedreira, F.%APȩkala, J.%APelayo, R.%APeña-Rodriguez, J.%APereira Martins, E.%APerez Armand, J.%APérez Bertolli, C.%APerlin, M.%APerrone, L.%APetrera, S.%APierog, T.%APimenta, M.%APirronello, V.%APlatino, M.%APont, B.%APothast, M.%APrivitera, P.%AProuza, M.%APuyleart, A.%AQuerchfeld, S.%ARautenberg, J.%ARavignani, D.%AReininghaus, M.%ARidky, J.%ARiehn, F.%ARisse, M.%ARizi, V.%ARodrigues de Carvalho, W.%ARodriguez Rojo, J.%ARoncoroni, M.%ARoth, M.%ARoulet, E.%ARovero, A.%ARuehl, P.%ASaffi, S.%ASaftoiu, A.%ASalamida, F.%ASalazar, H.%ASalina, G.%ASanabria Gomez, J.%ASánchez, F.%ASantos, E.%ASantos, E.%ASarazin, F.%ASarmento, R.%ASarmiento-Cano, C.%ASato, R.%ASavina, P.%ASchäfer, C.%AScherini, V.%ASchieler, H.%ASchimassek, M.%ASchimp, M.%ASchlüter, F.%ASchmidt, D.%AScholten, O.%ASchovánek, P.%ASchröder, F.%ASchröder, S.%ASchulte, J.%ASchulz, A.%ASciutto, S.%AScornavacche, M.%ASegreto, A.%ASehgal, S.%AShellard, R.%ASigl, G.%ASilli, G.%ASima, O.%AŠmída, R.%ASommers, P.%ASoriano, J.%ASouchard, J.%ASquartini, R.%AStadelmaier, M.%AStanca, D.%AStanič, S.%AStasielak, J.%AStassi, P.%AStreich, A.%ASuárez-Durán, M.%ASudholz, T.%ASuomijärvi, T.%ASupanitsky, A.%ASzadkowski, Z.%ATapia, A.%ATaricco, C.%ATimmermans, C.%ATkachenko, O.%ATobiska, P.%ATodero Peixoto, C.%ATomé, B.%ATorrès, Z.%ATravaini, A.%ATravnicek, P.%ATrimarelli, C.%ATueros, M.%AUlrich, R.%AUnger, M.%AVaclavek, L.%AVacula, M.%AValdés Galicia, J.%AValore, L.%AVarela, E.%AVásquez-Ramírez, A.%AVeberič, D.%AVentura, C.%AVergara Quispe, I.%AVerzi, V.%AVicha, J.%AVink, J.%AVorobiov, S.%AWahlberg, H.%AWatanabe, C.%AWatson, A.%AWeber, M.%AWeindl, A.%AWiencke, L.%AWilczyński, H.%AWirtz, M.%AWittkowski, D.%AWundheiler, B.%AYushkov, A.%AZapparrata, O.%AZas, E.%AZavrtanik, D.%AZavrtanik, M.%AZehrer, L.%BJournal Name: The European Physical Journal C; Journal Volume: 81; Journal Issue: 11 %D2021%I %JJournal Name: The European Physical Journal C; Journal Volume: 81; Journal Issue: 11 %K %MOSTI ID: 10330730 %PMedium: X %TThe energy spectrum of cosmic rays beyond the turn-down around $$\varvec{10^{17}}$$ eV as measured with the surface detector of the Pierre Auger Observatory %XAbstract We present a measurement of the cosmic-ray spectrum above 100 PeV using the part of the surface detector of the Pierre Auger Observatory that has a spacing of 750 m. An inflection of the spectrum is observed, confirming the presence of the so-called second-knee feature. The spectrum is then combined with that of the 1500 m array to produce a single measurement of the flux, linking this spectral feature with the three additional breaks at the highest energies. The combined spectrum, with an energy scale set calorimetrically via fluorescence telescopes and using a single detector type, results in the most statistically and systematically precise measurement of spectral breaks yet obtained. These measurements are critical for furthering our understanding of the highest energy cosmic rays. %0Journal Article