典型文献
The internal structure of the neutron:highlights from BESIII
文献摘要：
The BESIII Collaboration has recently published a new precise measurement of the time-like neutron form factor(FF)[1].In the light of the remarkable accuracy and of the wideness of the explored kinematical range,these data represent an unprece-dented tool for highlighting and studying specific features of the neutron FF.
Until a few years ago,the only available data were those obtained by the FENICE experiment at Frascati,in the'90s[2].Since 2014 also the SND experiment at Novosibirsk[3,4]has entered the game of measuring the e+e-→n(n),even though in a limited energy region extending only a few tens of MeV above the nn production threshold.These data,especially the ones from Frascati,give an effective neutron FF which is twice as large as the proton one,which appears quite puzzling.
文献关键词：
中图分类号：
作者姓名：
Simone Pacetti;Rinaldo Baldini Ferroli;Andrea Bianconi;Egle Tomasi-Gustafsson
作者机构：
Dipartimento di Fisica e Geologia,and INFN Sezione di Perugia,I-06123 Perugia,Italy;Laboratori Nazionali di Frascati dell'INFN,I-00044 Frascati,Italy;Dipartimento di Ingegneria dell'Informazione,Brescia,I-25133 Brescia,Italy INFN Sezione di Pavia,I-27100 Pavia,Italy;DPhN,IRFU,CEA,Université Paris-Saclay,I-91191 Gif-sur-Yvette Cedex,France
文献出处：
引用格式：
[1]Simone Pacetti;Rinaldo Baldini Ferroli;Andrea Bianconi;Egle Tomasi-Gustafsson-.The internal structure of the neutron:highlights from BESIII)[J].科学通报（英文版）,2022(06):557-560
A类：
wideness,kinematical,
Until,FENICE,Novosibirsk
B类：
internal,structure,neutron,highlights,from,BESIII,Collaboration,has,recently,published,new,precise,measurement,like,form,FF,In,remarkable,accuracy,explored,range,these,data,represent,unprece,dented,tool,highlighting,studying,specific,features,few,years,ago,only,available,were,those,obtained,by,experiment,Frascati,90s,Since,also,SND,entered,game,measuring,e+e,even,though,limited,energy,region,extending,tens,MeV,above,nn,production,threshold,These,especially,ones,give,effective,which,twice,large,proton,appears,quite,puzzling
AB值：
0.617617
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