該gai圖tu像xiang顯xian示shi兩liang顆ke中zhong子zi星xing碰peng撞zhuang並bing釋shi放fang出chu中zhong子zi，放fang射she性xing核he迅xun速su捕bu獲huo這zhe些xie中zhong子zi。中zhong子zi捕bu獲huo和he放fang射she性xing衰shuai變bian的de結jie合he隨sui後hou產chan生sheng更geng重zhong的de元yuan素su。整zheng個ge過guo程cheng被bei認ren為wei在zai一yi秒miao鍾zhong內nei發fa生sheng。圖tu片pian來lai源yuan：馬修·穆姆鮑爾/洛斯阿拉莫斯國家實驗室

科技日報記者 張夢然

元yuan素su周zhou期qi表biao中zhong鐵tie以yi上shang的de元yuan素su，被bei認ren為wei是shi在zai兩liang顆ke中zhong子zi星xing合he並bing等deng災zai難nan性xing爆bao炸zha或huo在zai罕han見jian的de超chao新xin星xing中zhong產chan生sheng的de。最zui新xin研yan究jiu表biao明ming，在zai重zhong元yuan素su的de產chan生sheng過guo程cheng中zhong，宇yu宙zhou中zhong可ke能neng會hui有you裂lie變bian發fa生sheng。通tong過guo梳shu理li古gu老lao恒heng星xing中zhong的de各ge種zhong元yuan素su的de數shu據ju，研yan究jiu人ren員yuan發fa現xian了le裂lie變bian的de潛qian在zai特te征zheng，並bing表biao明ming自zi然ran界jie可ke能neng會hui產chan生sheng超chao出chu元yuan素su周zhou期qi表biao中zhong最zui重zhong元yuan素su的de超chao重zhong原yuan子zi核he。這zhe一yi研yan究jiu成cheng果guo發fa表biao在zai最zui新xin一yi期qi《科學》雜誌上。

利li用yong最zui新xin的de觀guan察cha結jie果guo，美mei國guo洛luo斯si阿e拉la莫mo斯si國guo家jia實shi驗yan室shi研yan究jiu人ren員yuan發fa現xian了le銀yin等deng輕qing質zhi精jing密mi金jin屬shu與yu銪you等deng稀xi土tu原yuan子zi核he之zhi間jian存cun在zai相xiang關guan性xing。當dang其qi中zhong一yi組zu元yuan素su上shang升sheng時shi
，另ling一yi組zu中zhong相xiang應ying的de元yuan素su也ye會hui增zeng加jia
，其qi相xiang關guan性xing為wei正zheng。

yanjiurenyuanbiaoshi
，butonghengxingzhijiandouchuxianzhezhongqingkuang
，weiyikenengdefangshishi
，zaizhongyuansuxingchengguochengzhongcunzaiyizhideguocheng。tuanduiceshilesuoyoudekenengxing，liebianshiweiyinenggouzhongxianzheyiqushidejieshi。zheyeshiyuzhouzhongliebianfashengdediyigezhengju。

研究還表明

，原子質量（質子加中子數）為260的元素（比元素周期表最重的元素更重）可能存在。

團(tuan)隊(dui)開(kai)發(fa)了(le)用(yong)於(yu)預(yu)測(ce)和(he)指(zhi)導(dao)觀(guan)測(ce)的(de)裂(lie)變(bian)模(mo)型(xing)。這(zhe)些(xie)模(mo)型(xing)允(yun)許(xu)物(wu)理(li)學(xue)家(jia)解(jie)釋(shi)實(shi)驗(yan)並(bing)在(zai)缺(que)乏(fa)測(ce)量(liang)時(shi)填(tian)充(chong)數(shu)據(ju)。與(yu)測(ce)量(liang)數(shu)據(ju)相(xiang)比(bi)，這(zhe)些(xie)模(mo)型(xing)表(biao)現(xian)得(de)非(fei)常(chang)好(hao)
，因(yin)此(ci)在(zai)沒(mei)有(you)測(ce)量(liang)數(shu)據(ju)的(de)情(qing)況(kuang)下(xia)，它(ta)們(men)的(de)推(tui)斷(duan)更(geng)加(jia)可(ke)信(xin)。

研(yan)究(jiu)重(zhong)元(yuan)素(su)形(xing)成(cheng)需(xu)要(yao)短(duan)壽(shou)和(he)長(chang)壽(shou)物(wu)種(zhong)的(de)核(he)輸(shu)入(ru)。裂(lie)變(bian)產(chan)率(lv)是(shi)將(jiang)相(xiang)對(dui)較(jiao)重(zhong)原(yuan)子(zi)分(fen)裂(lie)成(cheng)較(jiao)輕(qing)原(yuan)子(zi)過(guo)程(cheng)中(zhong)的(de)產(chan)物(wu)

，這(zhe)與(yu)核(he)武(wu)器(qi)和(he)反(fan)應(ying)堆(dui)中(zhong)使(shi)用(yong)的(de)過(guo)程(cheng)相(xiang)同(tong)。