Search

Your search keyword '"Ge, LQ"' showing total 5 results
Start Over Author "Ge, LQ" Topic atomic
5 results on '"Ge, LQ"'

1. The detector system of the Daya Bay reactor neutrino experiment

Author

An, FP, Bai, JZ, Balantekin, AB, Band, HR, Beavis, D, Beriguete, W, Bishai, M, Blyth, S, Brown, RL, Butorov, I, Cao, D, Cao, GF, Cao, J, Carr, R, Cen, WR, Chan, WT, Chan, YL, Chang, JF, Chang, LC, Chang, Y, Chasman, C, Chen, HY, Chen, HS, Chen, MJ, Chen, QY, Chen, SJ, Chen, SM, Chen, XC, Chen, XH, Chen, XS, Chen, YX, Chen, Y, Cheng, JH, Cheng, J, Cheng, YP, Cherwinka, JJ, Chidzik, S, Chow, K, Chu, MC, Cummings, JP, de Arcos, J, Deng, ZY, Ding, XF, Ding, YY, Diwan, MV, Dong, L, Dove, J, Draeger, E, Du, XF, Dwyer, DA, Edwards, WR, Ely, SR, Fang, SD, Fu, JY, Fu, ZW, Ge, LQ, Ghazikhanian, V, Gill, R, Goett, J, Gonchar, M, Gong, GH, Gong, H, Gornushkin, YA, Grassi, M, Greenler, LS, Gu, WQ, Guan, MY, Guo, RP, Guo, XH, Hackenburg, RW, Hahn, RL, Han, R, Hans, S, He, M, He, Q, He, WS, Heeger, KM, Heng, YK, Higuera, A, Hinrichs, P, Ho, TH, Hoff, M, Hor, YK, Hsiung, YB, Hu, BZ, Hu, LM, Hu, LJ, Hu, T, Hu, W, Huang, EC, Huang, HZ, Huang, HX, Huang, PW, Huang, X, Huang, XT, Huber, P, Hussain, G, Isvan, Z, Jaffe, DE, and Jaffke, P

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Synchrotrons and Accelerators, Physical Sciences, Neutrino oscillation, Neutrino mixing, Reactor, Daya Bay, physics.ins-det, hep-ex, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Other Physical Sciences, Nuclear & Particles Physics, Nuclear and plasma physics
Abstract

The Daya Bay experiment was the first to report simultaneous measurements of reactor antineutrinos at multiple baselines leading to the discovery of ν¯e oscillations over km-baselines. Subsequent data has provided the world's most precise measurement of sin22θ13 and the effective mass splitting Δmee2. The experiment is located in Daya Bay, China where the cluster of six nuclear reactors is among the world's most prolific sources of electron antineutrinos. Multiple antineutrino detectors are deployed in three underground water pools at different distances from the reactor cores to search for deviations in the antineutrino rate and energy spectrum due to neutrino mixing. Instrumented with photomultiplier tubes, the water pools serve as shielding against natural radioactivity from the surrounding rock and provide efficient muon tagging. Arrays of resistive plate chambers over the top of each pool provide additional muon detection. The antineutrino detectors were specifically designed for measurements of the antineutrino flux with minimal systematic uncertainty. Relative detector efficiencies between the near and far detectors are known to better than 0.2%. With the unblinding of the final two detectors' baselines and target masses, a complete description and comparison of the eight antineutrino detectors can now be presented. This paper describes the Daya Bay detector systems, consisting of eight antineutrino detectors in three instrumented water pools in three underground halls, and their operation through the first year of eight detector data-taking.

Published
2016

2. The muon system of the Daya Bay Reactor antineutrino experiment

Author

An, FP, Balantekin, AB, Band, HR, Beriguete, W, Bishai, M, Blyth, S, Brown, RE, Butorov, I, Cao, GF, Cao, J, Carr, R, Chan, YL, Chang, JF, Chang, L, Chang, Y, Chasman, C, Chen, HS, Chen, HY, Chen, QY, Chen, SJ, Chen, SM, Chen, XC, Chen, XH, Chen, Y, Chen, YX, Cheng, YP, Cherwinka, JJ, Chu, MC, Cummings, JP, Dale, E, De Arcos, J, Deng, ZY, Ding, YY, Diwan, MV, Draeger, E, Du, XF, Dwyer, DA, Edwards, WR, Ely, SR, Fu, JY, Ge, LQ, Gill, R, Goett, J, Gonchar, M, Gong, GH, Gong, H, Gu, WQ, Guan, MY, Guo, XH, Hackenburg, RW, Han, GH, Hans, S, He, M, He, Q, Heeger, KM, Heng, YK, Hinrichs, P, Hor, YK, Hsiung, YB, Hu, BZ, Hu, LJ, Hu, LM, Hu, T, Hu, W, Huang, EC, Huang, HX, Huang, HZ, Huang, XT, Huber, P, Hussain, G, Isvan, Z, Jaffe, DE, Jaffke, P, Jetter, S, Ji, XL, Ji, XP, Jiang, HJ, Jiao, JB, Johnson, RA, Kang, L, Kebwaro, JM, Kettell, SH, Kramer, M, Kwan, KK, Kwok, MW, Kwok, T, Lai, WC, Lai, WH, Lau, K, Lebanowski, L, Lee, J, Lei, RT, Leitner, R, Leung, A, Leung, JKC, Lewis, CA, Li, DJ, Li, F, Li, GS, and Li, QJ

Subjects
Neutrinos, Water shield, Cosmic ray, Muons, Underground, Nuclear & Particles Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Other Physical Sciences
Abstract

The Daya Bay experiment consists of functionally identical antineutrino detectors immersed in pools of ultrapure water in three well-separated underground experimental halls near two nuclear reactor complexes. These pools serve both as shields against natural, low-energy radiation, and as water Cherenkov detectors that efficiently detect cosmic muons using arrays of photomultiplier tubes. Each pool is covered by a plane of resistive plate chambers as an additional means of detecting muons. Design, construction, operation, and performance of these muon detectors are described.

Published
2015

3. Independent measurement of the neutrino mixing angle theta(13) via neutron capture on hydrogen at Daya Bay

Author

An, FP, Balantekin, AB, Band, HR, Beriguete, W, Bishai, M, Blyth, S, Butorov, I, Cao, GF, Cao, J, Chan, YL, Chang, JF, Chang, LC, Chang, Y, Chasman, C, Chen, H, Chen, QY, Chen, SM, Chen, X, Chen, YX, Chen, Y, Cheng, YP, Cherwinka, JJ, Chu, MC, Cummings, JP, de Arcos, J, Deng, ZY, Ding, YY, Diwan, MV, Draeger, E, Du, XF, Dwyer, DA, Edwards, WR, Ely, SR, Fu, JY, Ge, LQ, Gill, R, Gonchar, M, Gong, GH, Gong, H, Gu, WQ, Guan, MY, Guo, XH, Hackenburg, RW, Han, GH, Hans, S, He, M, Heeger, M, Heng, YK, Hinrichs, P, Hor, YK, Hsiung, YB, Hu, BZ, Hu, LM, Hu, LJ, Hu, T, Hu, W, Huang, EC, Huang, H, Huang, XT, Huber, P, Hussain, G, Isvan, Z, Jaffe, DE, Jaffke, P, Jen, KL, Jetter, S, Ji, XP, Ji, XL, Jiang, HJ, Jiao, JB, Johnson, RA, Kang, L, Kettell, SH, Kramer, M, Kwan, KK, Kwok, MW, Kwok, T, Lai, WC, Lau, K, Lebanowski, L, Lee, J, Lei, RT, Leitner, R, Leung, A, Leung, JKC, Lewis, CA, Li, DJ, Li, F, Li, GS, Li, QJ, Li, WD, Li, XN, Li, XQ, Li, YF, Li, ZB, Liang, H, Lin, CJ, Lin, GL, and Lin, PY

Subjects
hep-ex, physics.ins-det, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract

A new measurement of the $\theta_{13}$ mixing angle has been obtained at theDaya Bay Reactor Neutrino Experiment via the detection of inverse beta decaystagged by neutron capture on hydrogen. The antineutrino events for hydrogencapture are distinct from those for gadolinium capture with largely differentsystematic uncertainties, allowing a determination independent of thegadolinium-capture result and an improvement on the precision of $\theta_{13}$measurement. With a 217-day antineutrino data set obtained with sixantineutrino detectors and from six 2.9 GW$_{th}$ reactors, the rate deficitobserved at the far hall is interpreted as $\sin^22\theta_{13}=0.083\pm0.018$in the three-flavor oscillation model. When combined with thegadolinium-capture result from Daya Bay, we obtain$\sin^22\theta_{13}=0.089\pm0.008$ as the final result for thesix-antineutrino-detector configuration of the Daya Bay experiment.

Published
2014

4. Independent measurement of the neutrino mixing angle θ13 via neutron capture on hydrogen at Daya Bay

Author

An, FP, Balantekin, AB, Band, HR, Beriguete, W, Bishai, M, Blyth, S, Butorov, I, Cao, GF, Cao, J, Chan, YL, Chang, JF, Chang, LC, Chang, Y, Chasman, C, Chen, H, Chen, QY, Chen, SM, Chen, X, Chen, YX, Chen, Y, Cheng, YP, Cherwinka, JJ, Chu, MC, Cummings, JP, de Arcos, J, Deng, ZY, Ding, YY, Diwan, MV, Draeger, E, Du, XF, Dwyer, DA, Edwards, WR, Ely, SR, Fu, JY, Ge, LQ, Gill, R, Gonchar, M, Gong, GH, Gong, H, Gu, WQ, Guan, MY, Guo, XH, Hackenburg, RW, Han, GH, Hans, S, He, M, Heeger, KM, Heng, YK, Hinrichs, P, Hor, YK, Hsiung, YB, Hu, BZ, Hu, LM, Hu, LJ, Hu, T, Hu, W, Huang, EC, Huang, H, Huang, XT, Huber, P, Hussain, G, Isvan, Z, Jaffe, DE, Jaffke, P, Jen, KL, Jetter, S, Ji, XP, Ji, XL, Jiang, HJ, Jiao, JB, Johnson, RA, Kang, L, Kettell, SH, Kramer, M, Kwan, KK, Kwok, MW, Kwok, T, Lai, WC, Lau, K, Lebanowski, L, Lee, J, Lei, RT, Leitner, R, Leung, A, Leung, JKC, Lewis, CA, Li, DJ, Li, F, Li, GS, Li, QJ, Li, WD, Li, XN, Li, XQ, Li, YF, Li, ZB, Liang, H, Lin, CJ, Lin, GL, and Lin, PY

Subjects
hep-ex, physics.ins-det, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract

A new measurement of the $\theta_{13}$ mixing angle has been obtained at theDaya Bay Reactor Neutrino Experiment via the detection of inverse beta decaystagged by neutron capture on hydrogen. The antineutrino events for hydrogencapture are distinct from those for gadolinium capture with largely differentsystematic uncertainties, allowing a determination independent of thegadolinium-capture result and an improvement on the precision of $\theta_{13}$measurement. With a 217-day antineutrino data set obtained with sixantineutrino detectors and from six 2.9 GW$_{th}$ reactors, the rate deficitobserved at the far hall is interpreted as $\sin^22\theta_{13}=0.083\pm0.018$in the three-flavor oscillation model. When combined with thegadolinium-capture result from Daya Bay, we obtain$\sin^22\theta_{13}=0.089\pm0.008$ as the final result for thesix-antineutrino-detector configuration of the Daya Bay experiment.

Published
2014

5. Improved measurement of electron antineutrino disappearance at Daya Bay

Author

An, FP, An, Q, Bai, JZ, Balantekin, AB, Band, HR, Beriguete, W, Bishai, M, Blyth, S, Brown, RL, Cao, GF, Cao, J, Carr, R, Chan, WT, Chang, JF, Chang, Y, Chasman, C, Chen, HS, Chen, HY, Chen, SJ, Chen, SM, Chen, XC, Chen, XH, Chen, XS, Chen, Y, Chen, YX, Cherwinka, JJ, Chu, MC, Cummings, JP, Deng, ZY, Ding, YY, Diwan, MV, Draeger, E, Du, XF, Dwyer, D, Edwards, WR, Ely, SR, Fang, SD, Fu, JY, Fu, ZW, Ge, LQ, Gill, RL, Gonchar, M, Gong, GH, Gong, H, Gornushkin, YA, Gu, WQ, Guan, MY, Guo, XH, Hackenburg, RW, Hahn, RL, Hans, S, Hao, HF, He, M, He, Q, Heeger, KM, Heng, YK, Hinrichs, P, Hor, YK, Hsiung, YB, Hu, BZ, Hu, T, Huang, HX, Huang, HZ, Huang, XT, Huber, P, Issakov, V, Isvan, Z, Jaffe, DE, Jetter, S, Ji, XL, Ji, XP, Jiang, HJ, Jiao, JB, Johnson, RA, Kang, L, Kettell, SH, Kramer, M, Kwan, KK, Kwok, MW, Kwok, T, Lai, CY, Lai, WC, Lai, WH, Lau, K, Lebanowski, L, Lee, J, Lei, RT, Leitner, R, Leung, JKC, Leung, KY, Lewis, CA, Li, F, Li, GS, Li, QJ, Li, WD, Li, XB, Li, XN, Li, XQ, Li, Y, and Li, ZB

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, neutrino oscillation, neutrino mixing, reactor, Daya Bay, hep-ex, nucl-ex, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics, Atomic, molecular and optical physics, Particle and high energy physics
Abstract

We report an improved measurement of the neutrino mixing angle θ13 from the Daya Bay Reactor Neutrino Experiment. We exclude a zero value for sin22θ13 with a significance of 7.7 standard deviations. Electron antineutrinos from six reactors of 2.9 GW th were detected in six antineutrino detectors deployed in two near (flux-weighted baselines of 470 m and 576 m) and one far (1648 m) underground experimental halls. Using 139 days of data, 28909 (205308) electron antineutrino candidates were detected at the far hall (near halls). The ratio of the observed to the expected number of antineutrinos assuming no oscillations at the far hall is 0.944±0.007(stat.)±0.003(syst.). An analysis of the relative rates in six detectors finds sin22θ13=0. 089±0.010(stat.)±0.005(syst.) in a three-neutrino framework. © 2013 Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Sciences and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd.

Published
2013

Catalog

Books, media, physical & digital resources
See catalog results