Abgrall, N; Aguayo, E; III, FT Avignone; Barabash, AS; Bertrand, FE; Boswell, M; Brudanin, V; Busch, M; Caldwell, AS; Chan, Y-D; Christofferson, CD; Combs, DC; Cooper, RJ; Creswick, RJ; Detwiler, JA; Doe, PJ; Efremenko, Yu; Egorov, V; Elliott, SR; Fast, JE; Finnerty, P; Fraenkle, FM; Galindo-Uribarri, A; Giovanetti, GK; Goett, J; Green, MP; Gruszko, J; Guiseppe, VE; Gusev, K; Hegai, A; Henning, R; Hoppe, EW; Howard, S; Howe, MA; Keeter, KJ; Kidd, MF; Knecht, A; Kochetov, O; Konovalov, SI; Kouzes, RT; LaFerriere, BD; Leon, J; Leviner, LE; Loach, JC; MacMullin, J; MacMullin, S; Marino, MG; Martin, RD; Mertens, S; Orrell, JL; O'Shaughnessy, C; Overman, NR; II, DG Phillips; Poon, AWP; Pushkin, K; Radford, DC; Rielage, K; Robertson, RGH; Ronquest, MC; Schubert, AG; Shanks, B; Shirchenko, M; Snavely, KJ; Snyder, N; Steele, D; Suriano, AM; Thompson, J; Timkin, V; Varner, RL; Vasilyev, S; Vetter, K; Vorren, K; White, BR; Wilkerson, JF; Xu, W; Yakushev, E; Young, AR; Yu, CH; Yumatov, V

A search for bremsstrahlung solar axions using the Majorana low-background BEGe detector at Kimballton (MALBEK)

2014

Abgrall, N;
Aguayo, E;
III, FT Avignone;
Barabash, AS;
Bertrand, FE;
Boswell, M;
Brudanin, V;
Busch, M;
Caldwell, AS;
Chan, Y-D;
Christofferson, CD;
Combs, DC;
Cooper, RJ;
Creswick, RJ;
Detwiler, JA;
Doe, PJ;
Efremenko, Yu;
Egorov, V;
Elliott, SR;
Fast, JE;
Finnerty, P;
Fraenkle, FM;
Galindo-Uribarri, A;
Giovanetti, GK;
Goett, J;
Green, MP;
Gruszko, J;
Guiseppe, VE;
Gusev, K;
Hegai, A;
Henning, R;
Hoppe, EW;
Howard, S;
Howe, MA;
Keeter, KJ;
Kidd, MF;
Knecht, A;
Kochetov, O;
Konovalov, SI;
Kouzes, RT;
LaFerriere, BD;
Leon, J;
Leviner, LE;
Loach, JC;
MacMullin, J;
MacMullin, S;
Marino, MG;
Martin, RD;
Mertens, S;
Orrell, JL;
O'Shaughnessy, C;
Overman, NR;
II, DG Phillips;
Poon, AWP;
Pushkin, K;
Radford, DC;
Rielage, K;
Robertson, RGH;
Ronquest, MC;
Schubert, AG;
Shanks, B;
Shirchenko, M;
Snavely, KJ;
Snyder, N;
Steele, D;
Suriano, AM;
Thompson, J;
Timkin, V;
Varner, RL;
Vasilyev, S;
Vetter, K;
Vorren, K;
White, BR;
Wilkerson, JF;
Xu, W;
Yakushev, E;
Young, AR;
Yu, CH;
Yumatov, V
et al.

Abstract

A low-background, high-purity germanium detector has been used to search for evidence of low-energy, bremsstrahlung-generated solar axions. An upper bound of $1.36\times 10^{-11}$ $(95% CL)$ is placed on the direct coupling of DFSZ model axions to electrons. The prospects for the sensitivity of the Majorana Demonstrator array of point-contact germanium detectors to solar axions are discussed in the context of the model-independent annual modulation due to the seasonal variation of the earth-sun distance.

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UC Berkeley

A search for bremsstrahlung solar axions using the Majorana low-background BEGe detector at Kimballton (MALBEK)