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Calcium isotope holds the secret to the mass of neutrinos

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  Calcium isotope holds the secret to the mass of neutrinos Sam Wormley <swormley1@gmail.com> - 2016-04-12 17:00 -0500
    Re: Calcium isotope holds the secret to the mass of neutrinos jimp@specsol.spam.sux.com - 2016-04-12 22:21 +0000
    Re: Calcium isotope holds the secret to the mass of neutrinos Sam Wormley <swormley1@gmail.com> - 2016-04-12 20:48 -0500
      Re: Calcium isotope holds the secret to the mass of neutrinos jimp@specsol.spam.sux.com - 2016-04-13 02:41 +0000
    Re: Calcium isotope holds the secret to the mass of neutrinos ClutterFreak <clutterfreakincarnate@gmail.com> - 2016-04-12 22:15 -0700
    Re: Calcium isotope holds the secret to the mass of neutrinos Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2016-04-13 08:23 -0400
      Re: Calcium isotope holds the secret to the mass of neutrinos Poutnik <poutnik4nntp@gmail.com> - 2016-04-13 15:01 +0200
        Re: Calcium isotope holds the secret to the mass of neutrinos Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2016-04-14 20:18 -0400
          Re: Calcium isotope holds the secret to the mass of neutrinos Sam Wormley <swormley1@gmail.com> - 2016-04-14 19:29 -0500

#570007 — Calcium isotope holds the secret to the mass of neutrinos

Calcium isotope holds the secret to the mass of neutrinos
> http://phys.org/news/2016-04-calcium-isotope-secret-mass-neutrinos.html
> http://cdn.phys.org/newman/csz/news/800/2016/calciumisoto.jpg


> An experiment that may offer an answer to the first of these
> questions is the so-called neutrinoless double beta decay. This
> occurs when an atom's parent nucleus decays into a daughter nucleus,
> gaining two protons, losing two neutrons and emitting two electrons.
> One example of this is the decay of calcium-48 (a very rare isotope
> of calcium with 20 protons and 28 neutrons) into titanium-48. This is
> the process that has now been analysed and modelled in unprecedented
> detail by scientists from the University of Tokyo (Japan). Their
> study is published in the journal Physical Review Letters.
>



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#570019

Sam Wormley <swormley1@gmail.com> wrote:
> Calcium isotope holds the secret to the mass of neutrinos

Perhaps you could get that secret though bribery.

If not, the torture.

-- 
Jim Pennino

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#570052

On 4/12/16 5:00 PM, Sam Wormley wrote:
> Calcium isotope holds the secret to the mass of neutrinos
> http://phys.org/news/2016-04-calcium-isotope-secret-mass-neutrinos.html
> http://cdn.phys.org/newman/csz/news/800/2016/calciumisoto.jpg
>
>
> An experiment that may offer an answer to the first of these
> questions is the so-called neutrinoless double beta decay. This
> occurs when an atom's parent nucleus decays into a daughter nucleus,
> gaining two protons, losing two neutrons and emitting two electrons.
> One example of this is the decay of calcium-48 (a very rare isotope
> of calcium with 20 protons and 28 neutrons) into titanium-48. This is
> the process that has now been analysed and modelled in unprecedented
> detail by scientists from the University of Tokyo (Japan). Their
> study is published in the journal Physical Review Letters.
>




   "Our findings will make it possible to directly obtain neutrino mass
   when the half-life of this decay is measured experimentally," says
   Menéndez. "Moreover, they suggest that the decay of calcium-48 is
   around half as long as what was previously thought (2 x 10^25 years,
   rather than 4 x 10^25 years). This improves our chances of observing
   it."

   Read more at: > 
http://phys.org/news/2016-04-calcium-isotope-secret-mass-neutrinos.html#jCp


-- 

sci.physics is an unmoderated newsgroup dedicated
to the discussion of physics, news from the physics
community, and physics-related social issues.

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#570075

Sam Wormley <swormley1@gmail.com> wrote:
> On 4/12/16 5:00 PM, Sam Wormley wrote:
>> Calcium isotope holds the secret to the mass of neutrinos

If it won't give up the secret, threaten the family.


-- 
Jim Pennino

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#570096

On Tuesday, April 12, 2016 at 5:00:31 PM UTC-5, Sam Wormley wrote:
> Calcium isotope holds the secret to the mass of neutrinos
> > http://phys.org/news/2016-04-calcium-isotope-secret-mass-neutrinos.html
> > http://cdn.phys.org/newman/csz/news/800/2016/calciumisoto.jpg
> 
> 
> > An experiment that may offer an answer to the first of these
> > questions is the so-called neutrinoless double beta decay. This
> > occurs when an atom's parent nucleus decays into a daughter nucleus,
> > gaining two protons, losing two neutrons and emitting two electrons.
> > One example of this is the decay of calcium-48 (a very rare isotope
> > of calcium with 20 protons and 28 neutrons) into titanium-48. This is
> > the process that has now been analysed and modelled in unprecedented
> > detail by scientists from the University of Tokyo (Japan). Their
> > study is published in the journal Physical Review Letters.
> >
> 
> 
> 

About 0.1 amu turns into energy for each decay. Not too bad for a weak nuke with no radioactive byproducts. 

--
    "tow pAy berah darnaho hich mapors
     khod rAh beguyadat kechon bAyadraft
              
                 - Attar Neyshapuri

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#570130

On 12/04/2016 6:00 PM, Sam Wormley wrote:
> Calcium isotope holds the secret to the mass of neutrinos
>> http://phys.org/news/2016-04-calcium-isotope-secret-mass-neutrinos.html
>> http://cdn.phys.org/newman/csz/news/800/2016/calciumisoto.jpg
>
>
>> An experiment that may offer an answer to the first of these
>> questions is the so-called neutrinoless double beta decay. This
>> occurs when an atom's parent nucleus decays into a daughter nucleus,
>> gaining two protons, losing two neutrons and emitting two electrons.
>> One example of this is the decay of calcium-48 (a very rare isotope
>> of calcium with 20 protons and 28 neutrons) into titanium-48. This is
>> the process that has now been analysed and modelled in unprecedented
>> detail by scientists from the University of Tokyo (Japan). Their
>> study is published in the journal Physical Review Letters.

They've been looking for this double-beta decay for at least 4 years. 
This article is from 2012:

Physicists close in on a rare particle-decay process
http://phys.org/news/2012-06-underground-neutrino-properties-unveils-results.html#nRlv

	Yousuf Khan

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#570132

Dne 13/04/2016 v 14:23 Yousuf Khan napsal(a):
> 
> They've been looking for this double-beta decay for at least 4 years. 
> This article is from 2012:
> 
> Physicists close in on a rare particle-decay process
> http://phys.org/news/2012-06-underground-neutrino-properties-unveils-results.html#nRlv
> 
With 48Ca halftime in order of 10E19 y, it is not easy, is not it.

-- 
Poutnik ( The Pilgrim, Der Wanderer )
Knowledge makes great men humble, but small men arrogant.

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#570589

On 13/04/2016 9:01 AM, Poutnik wrote:
> Dne 13/04/2016 v 14:23 Yousuf Khan napsal(a):
>>
>> They've been looking for this double-beta decay for at least 4 years.
>> This article is from 2012:
>>
>> Physicists close in on a rare particle-decay process
>> http://phys.org/news/2012-06-underground-neutrino-properties-unveils-results.html#nRlv
>>
> With 48Ca halftime in order of 10E19 y, it is not easy, is not it.

Well it's not just Ca-48, but they're also looking for it using 
Xenon-136. Which is the subject of the 2012 article.

	Yousuf Khan

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#570595

On 4/14/16 7:18 PM, Yousuf Khan wrote:
> On 13/04/2016 9:01 AM, Poutnik wrote:
>> Dne 13/04/2016 v 14:23 Yousuf Khan napsal(a):
>>>
>>> They've been looking for this double-beta decay for at least 4 years.
>>> This article is from 2012:
>>>
>>> Physicists close in on a rare particle-decay process
>>> http://phys.org/news/2012-06-underground-neutrino-properties-unveils-results.html#nRlv
>>>
>>>
>> With 48Ca halftime in order of 10E19 y, it is not easy, is not it.
>
> Well it's not just Ca-48, but they're also looking for it using
> Xenon-136. Which is the subject of the 2012 article.
>
>      Yousuf Khan
>


   My old physics professor, Barney Cook, well in his 80s spends the
   winters in Tallahassee, FL and the summers in Clear Lake, IA. I get
   to see him in the summers. One visit, he bent my ear for an afternoon
   about the yet to be seen double beta decay and how that data would
   tell us much about the mass of the neutrino.

   Barney suffered/recovered from a stoke in the last two years--I just
   hope I get some more of his wisdom this summer.



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