Search for Axionlike and Scalar Particles with the NA64 Experiment

D. Banerjee,J. Bernhard,V. E. Burtsev,A. G. Chumakov,D. Cooke,P. Crivelli,E. Depero,A. V. Dermenev,S. V. Donskov,R. R. Dusaev,T. Enik,N. Charitonidis,A. Feshchenko,V. N. Frolov,A. Gardikiotis,S. G. Gerassimov,S. N. Gninenko,M. Hösgen,M. Jeckel,V. A. Kachanov,A. E. Karneyeu,G. Kekelidze,B. Ketzer,D. V. Kirpichnikov,M. M. Kirsanov,V. N. Kolosov,I. V. Konorov,S. G. Kovalenko,V. A. Kramarenko,L. V. Kravchuk,N. V. Krasnikov,S. V. Kuleshov,V. E. Lyubovitskij,V. Lysan,V. A. Matveev,Yu. V. Mikhailov,L. Molina Bueno,D. V. Peshekhonov,V. A. Polyakov,B. Radics,R. Rojas,A. Rubbia,V. D. Samoylenko,H. Sieber,D. Shchukin,V. O. Tikhomirov,I. Tlisova,D. A. Tlisov,A. N. Toropin,A. Yu. Trifonov,B. I. Vasilishin,G. Vasquez Arenas,P. V. Volkov,V. Yu. Volkov,P. Ulloa,NA64 Collaboration; D. Banerjee; J. Bernhard; V. E. Burtsev; A. G. Chumakov; D. Cooke; P. Crivelli; E. Depero; A. V. Dermenev; S. V. Donskov; R. R. Dusaev; T. Enik; N. Charitonidis; A. Feshchenko; V. N. Frolov; A. Gardikiotis; S. G. Gerassimov; S. N. Gninenko; M. Hösgen; M. Jeckel; V. A. Kachanov; A. E. Karneyeu; G. Kekelidze; B. Ketzer; D. V. Kirpichnikov; M. M. Kirsanov; V. N. Kolosov; I. V. Konorov; S. G. Kovalenko; V. A. Kramarenko; L. V. Kravchuk; N. V. Krasnikov; S. V. Kuleshov; V. E. Lyubovitskij; V. Lysan; V. A. Matveev; Yu. V. Mikhailov; L. Molina Bueno; D. V. Peshekhonov; V. A. Polyakov; B. Radics; R. Rojas; A. Rubbia; V. D. Samoylenko; H. Sieber; D. Shchukin; V. O. Tikhomirov; I. Tlisova; D. A. Tlisov; A. N. Toropin; A. Yu. Trifonov; B. I. Vasilishin; G. Vasquez Arenas; P. V. Volkov; V. Yu. Volkov; P. Ulloa; NA64 Collaboration

Search for Axionlike and Scalar Particles with the NA64 Experiment

D. Banerjee,J. Bernhard,V. E. Burtsev,A. G. Chumakov,D. Cooke,P. Crivelli,E. Depero,A. V. Dermenev,S. V. Donskov,R. R. Dusaev,T. Enik,N. Charitonidis,A. Feshchenko,V. N. Frolov,A. Gardikiotis,S. G. Gerassimov,S. N. Gninenko,M. Hösgen,M. Jeckel,V. A. Kachanov,A. E. Karneyeu,G. Kekelidze,B. Ketzer,D. V. Kirpichnikov,M. M. Kirsanov,V. N. Kolosov,I. V. Konorov,S. G. Kovalenko,V. A. Kramarenko,L. V. Kravchuk,N. V. Krasnikov,S. V. Kuleshov,V. E. Lyubovitskij,V. Lysan,V. A. Matveev,Yu. V. Mikhailov,L. Molina Bueno,D. V. Peshekhonov,V. A. Polyakov,B. Radics,R. Rojas,A. Rubbia,V. D. Samoylenko,H. Sieber,D. Shchukin,V. O. Tikhomirov,I. Tlisova,D. A. Tlisov,A. N. Toropin,A. Yu. Trifonov,B. I. Vasilishin,G. Vasquez Arenas,P. V. Volkov,V. Yu. Volkov,P. Ulloa,NA64 Collaboration;D. Banerjee;J. Bernhard;V. E. Burtsev;A. G. Chumakov;D. Cooke;P. Crivelli;E. Depero;A. V. Dermenev;S. V. Donskov;R. R. Dusaev;T. Enik;N. Charitonidis;A. Feshchenko;V. N. Frolov;A. Gardikiotis;S. G. Gerassimov;S. N. Gninenko;M. Hösgen;M. Jeckel;V. A. Kachanov;A. E. Karneyeu;G. Kekelidze;B. Ketzer;D. V. Kirpichnikov;M. M. Kirsanov;V. N. Kolosov;I. V. Konorov;S. G. Kovalenko;V. A. Kramarenko;L. V. Kravchuk;N. V. Krasnikov;S. V. Kuleshov;V. E. Lyubovitskij;V. Lysan;V. A. Matveev;Yu. V. Mikhailov;L. Molina Bueno;D. V. Peshekhonov;V. A. Polyakov;B. Radics;R. Rojas;A. Rubbia;V. D. Samoylenko;H. Sieber;D. Shchukin;V. O. Tikhomirov;I. Tlisova;D. A. Tlisov;A. N. Toropin;A. Yu. Trifonov;B. I. Vasilishin;G. Vasquez Arenas;P. V. Volkov;V. Yu. Volkov;P. Ulloa;NA64 Collaboration;

physical review letters 2020 Vol. 125 pp. 081801-

177

collaboration2020physicalsearch

Abstract

We carried out a model-independent search for light scalar (s) and pseudoscalar axionlike (a) particles that couple to two photons by using the high-energy CERN SPS H4 electron beam. The new particles, if they exist, could be produced through the Primakoff effect in interactions of hard bremsstrahlung photons generated by 100 GeV electrons in the NA64 active dump with virtual photons provided by the nuclei of the dump. The a(s) would penetrate the downstream HCAL module, serving as a shield, and would be observed either through their a(s)→γγ decay in the rest of the HCAL detector, or as events with a large missing energy if the a(s) decays downstream of the HCAL. This method allows for the probing of the a(s) parameter space, including those from generic axion models, inaccessible to previous experiments. No evidence of such processes has been found from the analysis of the data corresponding to 2.84×1011 electrons on target, allowing us to set new limits on the a(s)γγ-coupling strength for a(s) masses below 55 MeV.

Keywords

models downstream photons scalar particles axionlike dump hcal na64

Access

DOI:

10.1103/physrevlett.125.081801

URL:

https://sciprofiles.com/publication/view/62924d63a...

Citation

ID: 270149

Ref Key: collaboration2020physicalsearch

Use this key to autocite in SciMatic or Thesis Manager

References

No Bibliography

Blockchain Verification

Account:

NFT Contract Address:

0x95644003c57E6F55A65596E3D9Eac6813e3566dA

Article ID:

270149

Unique Identifier:

10.1103/physrevlett.125.081801

Network:

Scimatic Chain (ID: 481)

Blockchain Readiness Checklist

Authors

Abstract

Journal Name

Year

Title

5/5

Creates 1,000,000 NFT tokens for this article

Token Features:

ERC-1155 Standard NFT
1 Million Supply per Article
Transferable via MetaMask
Permanent Blockchain Record

Scan with Saymatik Web3.0 Wallet

Gas fees required in SCI Coins

Buy SCI

Saymatik Web3.0 Wallet

Google Play

App Store

Coming soon

Reference Key: lastname+year+titlefirstword+journalfirstword

Article Type (Article, Book, Proceedings etc.)

Add a reference in a raw form. Our automatic system will correct it later.