First Measurement of High-Energy Reactor Antineutrinos at Daya Bay.

Journal

Physical review letters
ISSN: 1079-7114
Titre abrégé: Phys Rev Lett
Pays: United States
ID NLM: 0401141

Informations de publication

Date de publication:
22 Jul 2022
Historique:
received: 17 03 2022
revised: 05 06 2022
accepted: 28 06 2022
entrez: 8 8 2022
pubmed: 9 8 2022
medline: 9 8 2022
Statut: ppublish

Résumé

This Letter reports the first measurement of high-energy reactor antineutrinos at Daya Bay, with nearly 9000 inverse beta decay candidates in the prompt energy region of 8-12 MeV observed over 1958 days of data collection. A multivariate analysis is used to separate 2500 signal events from background statistically. The hypothesis of no reactor antineutrinos with neutrino energy above 10 MeV is rejected with a significance of 6.2 standard deviations. A 29% antineutrino flux deficit in the prompt energy region of 8-11 MeV is observed compared to a recent model prediction. We provide the unfolded antineutrino spectrum above 7 MeV as a data-based reference for other experiments. This result provides the first direct observation of the production of antineutrinos from several high-Q_{β} isotopes in commercial reactors.

Identifiants

DOI: 10.1103/PhysRevLett.129.041801 PMID: 35939015
pubmed: 35939015
doi: 10.1103/PhysRevLett.129.041801
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

041801

Auteurs

F P An (FP)

Sun Yat-Sen (Zhongshan) University, Guangzhou.

W D Bai (WD)

Sun Yat-Sen (Zhongshan) University, Guangzhou.

A B Balantekin (AB)

University of Wisconsin, Madison, Wisconsin 53706.

M Bishai (M)

Brookhaven National Laboratory, Upton, New York 11973.

S Blyth (S)

Department of Physics, National Taiwan University, Taipei.

G F Cao (GF)

Institute of High Energy Physics, Beijing.

J Cao (J)

Institute of High Energy Physics, Beijing.

J F Chang (JF)

Institute of High Energy Physics, Beijing.

Y Chang (Y)

National United University, Miao-Li.

H S Chen (HS)

Institute of High Energy Physics, Beijing.

H Y Chen (HY)

Department of Engineering Physics, Tsinghua University, Beijing.

S M Chen (SM)

Department of Engineering Physics, Tsinghua University, Beijing.

Y Chen (Y)

Sun Yat-Sen (Zhongshan) University, Guangzhou.
Shenzhen University, Shenzhen.

Y X Chen (YX)

North China Electric Power University, Beijing.

J Cheng (J)

North China Electric Power University, Beijing.

Z K Cheng (ZK)

Sun Yat-Sen (Zhongshan) University, Guangzhou.

J J Cherwinka (JJ)

University of Wisconsin, Madison, Wisconsin 53706.

M C Chu (MC)

Chinese University of Hong Kong, Hong Kong.

J P Cummings (JP)

Siena College, Loudonville, New York 12211.

O Dalager (O)

Department of Physics and Astronomy, University of California, Irvine, California 92697.

F S Deng (FS)

University of Science and Technology of China, Hefei.

Y Y Ding (YY)

Institute of High Energy Physics, Beijing.

M V Diwan (MV)

Brookhaven National Laboratory, Upton, New York 11973.

T Dohnal (T)

Charles University, Faculty of Mathematics and Physics, Prague.

D Dolzhikov (D)

Joint Institute for Nuclear Research, Dubna, Moscow Region.

J Dove (J)

Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801.

D A Dwyer (DA)

Lawrence Berkeley National Laboratory, Berkeley, California 94720.

J P Gallo (JP)

Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616.

M Gonchar (M)

Joint Institute for Nuclear Research, Dubna, Moscow Region.

G H Gong (GH)

Department of Engineering Physics, Tsinghua University, Beijing.

H Gong (H)

Department of Engineering Physics, Tsinghua University, Beijing.

W Q Gu (WQ)

Brookhaven National Laboratory, Upton, New York 11973.

J Y Guo (JY)

Sun Yat-Sen (Zhongshan) University, Guangzhou.

L Guo (L)

Department of Engineering Physics, Tsinghua University, Beijing.

X H Guo (XH)

Beijing Normal University, Beijing.

Y H Guo (YH)

Department of Nuclear Science and Technology, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an.

Z Guo (Z)

Department of Engineering Physics, Tsinghua University, Beijing.

R W Hackenburg (RW)

Brookhaven National Laboratory, Upton, New York 11973.

S Hans (S)

Brookhaven National Laboratory, Upton, New York 11973.

M He (M)

Institute of High Energy Physics, Beijing.

K M Heeger (KM)

Wright Laboratory and Department of Physics, Yale University, New Haven, Connecticut 06520.

Y K Heng (YK)

Institute of High Energy Physics, Beijing.

Y K Hor (YK)

Sun Yat-Sen (Zhongshan) University, Guangzhou.

Y B Hsiung (YB)

Department of Physics, National Taiwan University, Taipei.

B Z Hu (BZ)

Department of Physics, National Taiwan University, Taipei.

J R Hu (JR)

Institute of High Energy Physics, Beijing.

T Hu (T)

Institute of High Energy Physics, Beijing.

Z J Hu (ZJ)

Sun Yat-Sen (Zhongshan) University, Guangzhou.

H X Huang (HX)

China Institute of Atomic Energy, Beijing.

J H Huang (JH)

Institute of High Energy Physics, Beijing.

X T Huang (XT)

Shandong University, Jinan.

Y B Huang (YB)

Guangxi University, No. 100 Daxue East Road, Nanning.

P Huber (P)

Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia 24061.

D E Jaffe (DE)

Brookhaven National Laboratory, Upton, New York 11973.

K L Jen (KL)

Institute of Physics, National Chiao-Tung University, Hsinchu.

X L Ji (XL)

Institute of High Energy Physics, Beijing.

X P Ji (XP)

Brookhaven National Laboratory, Upton, New York 11973.

R A Johnson (RA)

Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221.

D Jones (D)

Department of Physics, College of Science and Technology, Temple University, Philadelphia, Pennsylvania 19122.

L Kang (L)

Dongguan University of Technology, Dongguan.

S H Kettell (SH)

Brookhaven National Laboratory, Upton, New York 11973.

S Kohn (S)

Department of Physics, University of California, Berkeley, California 94720.

M Kramer (M)

Lawrence Berkeley National Laboratory, Berkeley, California 94720.
Department of Physics, University of California, Berkeley, California 94720.

T J Langford (TJ)

Wright Laboratory and Department of Physics, Yale University, New Haven, Connecticut 06520.

J Lee (J)

Lawrence Berkeley National Laboratory, Berkeley, California 94720.

J H C Lee (JHC)

Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong.

R T Lei (RT)

Dongguan University of Technology, Dongguan.

R Leitner (R)

Charles University, Faculty of Mathematics and Physics, Prague.

J K C Leung (JKC)

Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong.

F Li (F)

Institute of High Energy Physics, Beijing.

H L Li (HL)

Institute of High Energy Physics, Beijing.

J J Li (JJ)

Department of Engineering Physics, Tsinghua University, Beijing.

Q J Li (QJ)

Institute of High Energy Physics, Beijing.

R H Li (RH)

Institute of High Energy Physics, Beijing.

S Li (S)

Dongguan University of Technology, Dongguan.

S C Li (SC)

Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia 24061.

W D Li (WD)

Institute of High Energy Physics, Beijing.

X N Li (XN)

Institute of High Energy Physics, Beijing.

X Q Li (XQ)

School of Physics, Nankai University, Tianjin.

Y F Li (YF)

Institute of High Energy Physics, Beijing.

Z B Li (ZB)

Sun Yat-Sen (Zhongshan) University, Guangzhou.

H Liang (H)

University of Science and Technology of China, Hefei.

C J Lin (CJ)

Lawrence Berkeley National Laboratory, Berkeley, California 94720.

G L Lin (GL)

Institute of Physics, National Chiao-Tung University, Hsinchu.

S Lin (S)

Dongguan University of Technology, Dongguan.

J J Ling (JJ)

Sun Yat-Sen (Zhongshan) University, Guangzhou.

J M Link (JM)

Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia 24061.

L Littenberg (L)

Brookhaven National Laboratory, Upton, New York 11973.

B R Littlejohn (BR)

Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616.

J C Liu (JC)

Institute of High Energy Physics, Beijing.

J L Liu (JL)

Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai.

J X Liu (JX)

Institute of High Energy Physics, Beijing.

C Lu (C)

Joseph Henry Laboratories, Princeton University, Princeton, New Jersey 08544.

H Q Lu (HQ)

Institute of High Energy Physics, Beijing.

K B Luk (KB)

Lawrence Berkeley National Laboratory, Berkeley, California 94720.
Department of Physics, University of California, Berkeley, California 94720.

B Z Ma (BZ)

Shandong University, Jinan.

X B Ma (XB)

North China Electric Power University, Beijing.

X Y Ma (XY)

Institute of High Energy Physics, Beijing.

Y Q Ma (YQ)

Institute of High Energy Physics, Beijing.

R C Mandujano (RC)

Department of Physics and Astronomy, University of California, Irvine, California 92697.

C Marshall (C)

Lawrence Berkeley National Laboratory, Berkeley, California 94720.

K T McDonald (KT)

Joseph Henry Laboratories, Princeton University, Princeton, New Jersey 08544.

R D McKeown (RD)

California Institute of Technology, Pasadena, California 91125.
College of William and Mary, Williamsburg, Virginia 23187.

Y Meng (Y)

Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai.

J Napolitano (J)

Department of Physics, College of Science and Technology, Temple University, Philadelphia, Pennsylvania 19122.

D Naumov (D)

Joint Institute for Nuclear Research, Dubna, Moscow Region.

E Naumova (E)

Joint Institute for Nuclear Research, Dubna, Moscow Region.

T M T Nguyen (TMT)

Institute of Physics, National Chiao-Tung University, Hsinchu.

J P Ochoa-Ricoux (JP)

Department of Physics and Astronomy, University of California, Irvine, California 92697.

A Olshevskiy (A)

Joint Institute for Nuclear Research, Dubna, Moscow Region.

H-R Pan (HR)

Department of Physics, National Taiwan University, Taipei.

J Park (J)

Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia 24061.

S Patton (S)

Lawrence Berkeley National Laboratory, Berkeley, California 94720.

J C Peng (JC)

Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801.

C S J Pun (CSJ)

Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong.

F Z Qi (FZ)

Institute of High Energy Physics, Beijing.

M Qi (M)

Nanjing University, Nanjing.

X Qian (X)

Brookhaven National Laboratory, Upton, New York 11973.

N Raper (N)

Sun Yat-Sen (Zhongshan) University, Guangzhou.

J Ren (J)

China Institute of Atomic Energy, Beijing.

C Morales Reveco (C)

Department of Physics and Astronomy, University of California, Irvine, California 92697.

R Rosero (R)

Brookhaven National Laboratory, Upton, New York 11973.

B Roskovec (B)

Charles University, Faculty of Mathematics and Physics, Prague.

X C Ruan (XC)

China Institute of Atomic Energy, Beijing.

H Steiner (H)

Lawrence Berkeley National Laboratory, Berkeley, California 94720.
Department of Physics, University of California, Berkeley, California 94720.

J L Sun (JL)

China General Nuclear Power Group, Shenzhen.

T Tmej (T)

Charles University, Faculty of Mathematics and Physics, Prague.

K Treskov (K)

Joint Institute for Nuclear Research, Dubna, Moscow Region.

W-H Tse (WH)

Chinese University of Hong Kong, Hong Kong.

C E Tull (CE)

Lawrence Berkeley National Laboratory, Berkeley, California 94720.

B Viren (B)

Brookhaven National Laboratory, Upton, New York 11973.

V Vorobel (V)

Charles University, Faculty of Mathematics and Physics, Prague.

C H Wang (CH)

National United University, Miao-Li.

J Wang (J)

Sun Yat-Sen (Zhongshan) University, Guangzhou.

M Wang (M)

Shandong University, Jinan.

N Y Wang (NY)

Beijing Normal University, Beijing.

R G Wang (RG)

Institute of High Energy Physics, Beijing.

W Wang (W)

Sun Yat-Sen (Zhongshan) University, Guangzhou.
College of William and Mary, Williamsburg, Virginia 23187.

X Wang (X)

College of Electronic Science and Engineering, National University of Defense Technology, Changsha.

Y Wang (Y)

Nanjing University, Nanjing.

Y F Wang (YF)

Institute of High Energy Physics, Beijing.

Z Wang (Z)

Institute of High Energy Physics, Beijing.

Z Wang (Z)

Department of Engineering Physics, Tsinghua University, Beijing.

Z M Wang (ZM)

Institute of High Energy Physics, Beijing.

H Y Wei (HY)

Brookhaven National Laboratory, Upton, New York 11973.

L H Wei (LH)

Institute of High Energy Physics, Beijing.

L J Wen (LJ)

Institute of High Energy Physics, Beijing.

K Whisnant (K)

Iowa State University, Ames, Iowa 50011.

C G White (CG)

Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616.

H L H Wong (HLH)

Lawrence Berkeley National Laboratory, Berkeley, California 94720.
Department of Physics, University of California, Berkeley, California 94720.

E Worcester (E)

Brookhaven National Laboratory, Upton, New York 11973.

D R Wu (DR)

Institute of High Energy Physics, Beijing.

Q Wu (Q)

Shandong University, Jinan.

W J Wu (WJ)

Institute of High Energy Physics, Beijing.

D M Xia (DM)

Chongqing University, Chongqing.

Z Q Xie (ZQ)

Institute of High Energy Physics, Beijing.

Z Z Xing (ZZ)

Institute of High Energy Physics, Beijing.

H K Xu (HK)

Institute of High Energy Physics, Beijing.

J L Xu (JL)

Institute of High Energy Physics, Beijing.

T Xu (T)

Department of Engineering Physics, Tsinghua University, Beijing.

T Xue (T)

Department of Engineering Physics, Tsinghua University, Beijing.

C G Yang (CG)

Institute of High Energy Physics, Beijing.

L Yang (L)

Dongguan University of Technology, Dongguan.

Y Z Yang (YZ)

Department of Engineering Physics, Tsinghua University, Beijing.

H F Yao (HF)

Institute of High Energy Physics, Beijing.

M Ye (M)

Institute of High Energy Physics, Beijing.

M Yeh (M)

Brookhaven National Laboratory, Upton, New York 11973.

B L Young (BL)

Iowa State University, Ames, Iowa 50011.

H Z Yu (HZ)

Sun Yat-Sen (Zhongshan) University, Guangzhou.

Z Y Yu (ZY)

Institute of High Energy Physics, Beijing.

B B Yue (BB)

Sun Yat-Sen (Zhongshan) University, Guangzhou.

V Zavadskyi (V)

Joint Institute for Nuclear Research, Dubna, Moscow Region.

S Zeng (S)

Institute of High Energy Physics, Beijing.

Y Zeng (Y)

Sun Yat-Sen (Zhongshan) University, Guangzhou.

L Zhan (L)

Institute of High Energy Physics, Beijing.

C Zhang (C)

Brookhaven National Laboratory, Upton, New York 11973.

F Y Zhang (FY)

Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai.

H H Zhang (HH)

Sun Yat-Sen (Zhongshan) University, Guangzhou.

J L Zhang (JL)

Nanjing University, Nanjing.

J W Zhang (JW)

Institute of High Energy Physics, Beijing.

Q M Zhang (QM)

Department of Nuclear Science and Technology, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an.

S Q Zhang (SQ)

Sun Yat-Sen (Zhongshan) University, Guangzhou.

X T Zhang (XT)

Institute of High Energy Physics, Beijing.

Y M Zhang (YM)

Sun Yat-Sen (Zhongshan) University, Guangzhou.

Y X Zhang (YX)

China General Nuclear Power Group, Shenzhen.

Y Y Zhang (YY)

Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai.

Z J Zhang (ZJ)

Dongguan University of Technology, Dongguan.

Z P Zhang (ZP)

University of Science and Technology of China, Hefei.

Z Y Zhang (ZY)

Institute of High Energy Physics, Beijing.

J Zhao (J)

Institute of High Energy Physics, Beijing.

R Z Zhao (RZ)

Institute of High Energy Physics, Beijing.

L Zhou (L)

Institute of High Energy Physics, Beijing.

H L Zhuang (HL)

Institute of High Energy Physics, Beijing.

J H Zou (JH)

Institute of High Energy Physics, Beijing.

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