Viernes, 28 Marzo 2014 16:36

Hallazgo decisivo sobre las transformaciones de los neutrinos

Escrito por 
Valora este artículo
(0 votos)

Las respuestas que podrían conducir a resolver esos enigmas dependen del modo en que tres variedades de neutrinos oscilan en su "identidad", transformándose de una clase a otra a medida que avanzan casi sin interrupción a través de vastas extensiones de materia y de vacío. Esas tres clases son las siguientes: el neutrino electrónico, que está "emparentado" con el electrón; el neutrino muónico; y el neutrino Tau.

El conocimiento de la masa del neutrino se basa en los resultados de numerosos experimentos en los que se observaron esas oscilaciones de neutrinos. Por ejemplo, los neutrinos de la familia de los electrónicos pueden transformarse de manera espontánea, mientras vuelan libremente por el espacio, en neutrinos de las otras dos familias (la de los neutrinos muónicos y la de los neutrinos Tau).

 

Se habla de "oscilación" porque el neutrino puede cambiar su afiliación de una a otra familia periódicamente durante un viaje prolongado. La física dice que tales oscilaciones sólo son posibles si las partículas están dotadas de masa. La evidencia experimental de las oscilaciones de los neutrinos (y por lo tanto la evidencia de que el neutrino tiene una masa mayor de cero) es uno de los mayores avances de la física de partículas moderna en los últimos 20 años.

Detectores de neutrinos en Daya Bay. (Foto: Roy Kaltschmidt, Lawrence Berkeley National Laboratory)El proceso de conversión entre los diferentes tipos de neutrinos depende de tres factores descritos como "ángulos de mezcla": Theta 12, Theta 23 y Theta 13. De los tres ángulos de mezcla, hasta ahora sólo se conocía bien a los dos primeros. El tercero, Theta 13, estaba pendiente de que las investigaciones en marcha desvelasen su valor. Esto se ha conseguido ahora, gracias al experimento DBRNE, emplazado en el sur de China y en el que colaboran expertos de ese país así como de Estados Unidos, Rusia y la República Checa.

Los últimos resultados obtenidos por el equipo internacional de Yifang Wang, del Instituto Chino de Física de Altas Energías, indican que el valor de referencia del ángulo de mezcla Theta 13 es igual a 0,092, con un margen de error de 0,017 de más o de menos.

El ángulo de mezcla Theta 13 alberga pistas sobre cómo nacieron algunas partículas en los instantes posteriores al Big Bang. El conocimiento recién obtenido del valor de Theta 13 podría ahora permitir averiguar por qué hay más materia que antimateria en el universo.

Por parte estadounidense, el experimento DBRNE está coordinado por Kam-Biu Luk y William Edwards, ambos del Laboratorio Nacional Lawrence Berkeley (Berkeley Lab) y de la Universidad de California en la misma ciudad, así como por Steve Kettell del Laboratorio Nacional de Brookhaven.

Visto 5446 veces Modificado por última vez en Viernes, 28 Marzo 2014 16:36

2250 comentarios

  • Enlace al Comentario Janesef Miércoles, 11 Diciembre 2019 08:40 publicado por Janesef

    buy metformin online canada

  • Enlace al Comentario BKI89yGed Miércoles, 11 Diciembre 2019 07:00 publicado por BKI89yGed

    After having a brought the first curry shoes basketball, a garage at your match: each other laid out a perfect diamond entry, teammate Steve Blake flew to follow up, left the clippers safeguard darren collison (microblogging) the gap between two steps driving their closely, Danny granger will be the only defender in pull. This is the car port superior court intuition and understanding that embodies: his shot collection. He seems to fully grasp the defensive player from the ideas, can predict their own next move, then strike before hand. "When other people are usually doing gesture, garage throughout judgment, and the activity, this is Stephen is the better place, in this respect the actual league may be an awesome experience. Find field space, know the place that the defense space will occur, it is the key on the art of his pictures. Because no matter precisely how good your shots, more exquisite technology, no area is useless. "ESPN's David thorpe, once wrote with his article.


    Garage thoroughly stephen curry shoes observing the defense, he have reason to be thus cautious. Before this, the warriors have overlooked 12 goals in 13 shots previously, is now 33 to be able to 37 behind the clippers, disturbed with the right leg muscle pressure of garage after only 1 of 4. For shed himself, this ball is very important: before a season, he hit a record in NBA history with 272 grains of about three points, if again founded three points today, his three points in 2010 hit number will meet or exceed 200 mark. So that library will end up the sixth in a row has no less than two season hit two hundred grains of three avid gamers, at the same time, still can have about three points to continuous hit game streak always 54 games - it's going to be the warriors team record record.


    "I like everything kd shoes linked to the shooting, " garage once said in the interview, "but with the most especially in perfect palm posture. When your is in good rhythm, from standing in the feet on the floor, his hands to complete an effort, all series of joint actions will probably be calm and smooth, such as waves. It's a amazing feeling. ".

    Tag: kyrie irving shoes pg shoes birkenstock sandals vans sk8 hi kyrie 4 kyrie 5 vans shoes john wall shoes lebron james shoes michael jordan shoes nike air max 270 kyrie 2 curry 5 nike lebron 14 curry shoes puma fenty lebron 15 kyrie irving shoes kobe bryant shoes kd 10 adidas yeezy outlet kyire 3 nike air more uptempo james harden vol 2 nike hyperdunk under armour shoes lebron soldier 10 puma fenty air jordan 32 lebron 14 shoes adidas zx flux kobe shoes kyrie shoes puma fenty slides curry shoes nike huarache puma rihanna creepers velvet nike mercurial puma suede kobe 11 adidas nmd nike zoom vaporfly lebron 16 Cristiano Ronaldo CR7 nike air presto adidas crazy explosive kyrie 4 nike zoom vaporfly elite adidas iniki kyrie irving jersey birkenstock shoes kyrie 4 halloween nike sock racer lebron james shoes kobe bryant jersey puma fenty air max 90 curry 5 shoes Nike lebron soldier 11 nike kyrie 3 nike epic react adidas ultra boost kyrie 4 halloween nike pg 2 yeezy shoes adidas yeezy kobe 10 asics gel kayano 23 kevin durant jersey stephen curry jersey kyrie 3 curry 2 yeezy boost Nike Soccer Cleats jordan retro ultra boost 3.0 lebron soldier 10 air max 270 kyrie 4 confetti kyrie shoes 3 nike air vapormax curry 4 shoes Lebron soldier 11 curry 5 kyrie irving jersey kyrie 4

  • Enlace al Comentario BKI89yGed Miércoles, 11 Diciembre 2019 04:02 publicado por BKI89yGed

    Throw three points seriously isn't the whole garage every day work, and don't ignore, Stephen curry is the team in assists along with steals, he averaged 6. 7 assists in the regular season, 14 from the league and the playoffs stephen curry shoes is usually averaging 9. 3 assists as the league the first! Let's imagine an image, 40 minutes per game inside Treasury, attack launched a multitude of times, there are always a few ball he wasn't within the outside, but the basketball inside, attracted a double... What will happen after that? There was a man he can tell you the solution, curry shoes he called clay : Thompson, from the glowing state warriors, he made there is much surprise 211 3-pointers, finished third inside league, and that 211 3-pointers, 68 comes from the assists of Stephen curry.


    12-13 time of year to contrast the shed and ray Allen inside '05 -' 06 -- Allen into 269 3-pointers, and he could be the Seattle supersonics. Which year, Allen's 269 regarding 653 three-point shots, shot 41. 2%, as Stephen : 272 of 600 photographs in his Arsenal, of up to 45. 3%; That 12 months, Alan ball attack create 3 ratio is below a quarter, compared along with 38. 6% in databases; That year, Allen's assists the quantity 3. 7, less compared to Treasury for three assists. So the outline, the image of alternative 3-pointers hand straight down the garage outline: he not just completed the sharpshooter backdrop, his teammates for his / her creation of free-throw prospects into; He will also look for opportunities at the same time, through the ball state-of-the-art, stopped for no assists 3-pointer of shots. Moreover, he also can cross assists, "create" another pitcher - clay - Thompson! Besides can catch vote, will likely urgent stopped, can produce more opportunities to some others, this star, unique! I am just kevin durant shoes afraid, just use "striker" two words are already unable to define Stephen curry, should be in with a new "great" rhetoric.

    Tag: kyrie irving shoes Nike lebron soldier 11 pegasus 35 nike huarache nike hyperdunk ultra boost 3.0 adidas nmd shoes vans sk8 hi under armour shoes curry 5 kyrie irving jersey michael jordan shoes john wall shoes Cristiano Ronaldo CR7 lebron 14 shoes nike air force 1 lebron soldier 10 kyrie 4 kyrie irving shoes kd shoes kobe bryant jersey lebron 15 new era caps lebron soldier 10 ultra boost adidas iniki pg shoes mizuno shoes nike air presto kyrie 2 shoes jordan retro stephen curry shoes adidas deerupt runner nike epic react flyknit lebron 14 lebron 16 lebron james shoes nike free kyrie 4 confetti adidas yeezy calvin klein underwear kyrie irving jersey adidas football cleats kyrie irving shoes adidas boost adidas yeezy boost puma fenty nike kobe shoes curry 5 nike air more uptempo curry 5 puma fenty adidas ultra boost 4 adidas ultra boost uncaged nike air vapormax adidas crazy explosive kd shoes kyrie 4 yeezy boost vibram shoes curry 5 kyire 3 kyrie irving basketball shoes adidas eqt kyrie 4 nike sock racer stephen curry jersey kd 11 air jordan 32 Lebron soldier 11 yeezy shoes Nike Football Cleats curry 2 kyrie 3 nike air vapormax nike air max 270 vans shoes kd 10 stephen curry basketball shoes nike zoom vaporfly elite kobe 10 asics gel kayano 23 kevin durant jersey kyrie 4 shoes puma fenty slides kyrie 1

  • Enlace al Comentario BKI89yGed Miércoles, 11 Diciembre 2019 03:13 publicado por BKI89yGed

    Half-court complete,stephen curry shoes the garage 12 items and 4 rebounds 6 helps, Owen 17 rebounds, 2 assists 1 provides the upper hand slightly. But as knight defeat inside the second half, even the one-on-one hit his details. In this series, OuWenBen should have certain advantages in counterpoint, like the finals last year, because the season of Christmas battles, with their strong particular fortunes turned.


    But today the warriors with the changes, let knights staggered, also let like one-on-one hit Owen curry shoes to search for the rhythm. Actually, today most likely was clay - Thompson The almighty Owen, although Owen hit a dead facing him, but clay height reach or to some extent, limits the Owen's invasion. In only a few times when confronted with single singled out within his Arsenal, although Owen offers good performance, but also it's hard to return for a knight.


    Full play, scored 28 points 6 rebounds and 10 assists from the Treasury, 6 of 11 three-point kevin durant shoes shots. 24 points and 3 rebounds, only two assists, Owen has scored 17 points in the first half, he scored seven points inside the second half. Facing the big four from the mighty, and only Erika Owen in one-on-one earn garage have chances, but today's garage to accomplish better.

    Tag: kyrie irving shoes lebron james shoes ultra boost 3.0 kd 10 puma fenty james harden vol 2 adidas ultra boost 4 puma fenty nike sock racer kyrie 4 nike epic react flyknit kyrie 2 curry 5 nike lebron shoes ultra boost shoes kd shoes nike epic react nike hyperdunk adidas yeezy air jordan shoes Nike CR7 curry 2 puma fenty slides lebron soldier 10 kyrie 4 kyrie irving shoes nike kyrie shoes nike mercurial adidas yeezy vibram nike zoom vaporfly elite curry 5 kd shoes lebron 16 curry 5 air max 90 kyrie 4 curry shoes vans shoes nike huarache jordan 32 kyrie 4 halloween kevin durant jersey adidas zx flux kyrie 2 shoes hand spinner kyrie irving jersey Nike Soccer Cleats Lebron James Shoes lebron 15 mizuno running shoes kyrie 4 kyrie 5 lebron shoes adidas yeezy boost air max 270 nike air vapormax adidas eqt vans sk8 hi adidas boost kyrie 4 stephen curry shoes birkenstock stephen curry jersey michael jordan shoes kobe shoes puma suede kyrie irving shoes nike pg 2 lebron soldier 10 Cristiano Ronaldo CR7 yeezy shoes jordan retro adidas iniki pg shoes nike air presto new era caps air force 1 adidas football cleats kyrie 3 shoes nike zoom vaporfly kyrie irving jersey adidas ultra boost kobe 10 kobe bryant jersey kyrie irving shoes

  • Enlace al Comentario BKI89yGed Miércoles, 11 Diciembre 2019 02:50 publicado por BKI89yGed

    After having a brought the first curry shoes ball, a garage at the actual match: each other laid out a perfect diamond top, teammate Steve Blake flew that you follow up, left the clippers defend darren collison (microblogging) the space between two steps driving their closely, Danny granger could be the only defender in tow line. This is the shed superior court intuition and understanding that embodies: his shot choice. He seems to recognize the defensive player in the ideas, can predict their next move, then strike beforehand. "When other people are doing gesture, garage throughout judgment, and the video game, this is Stephen is the better place, in this respect the league may be second to none. Find field space, know in which the defense space will occur, it is the key from the art of his pictures. Because no matter how good your shots, much more exquisite technology, no space is useless. "ESPN's Jesse thorpe, once wrote throughout his article.


    Garage cautiously stephen curry shoes observing the defense, he also provide reason to be and so cautious. Before this, the warriors have had missed 12 goals in 13 shots in the past, is now 33 to help 37 behind the clippers, disturbed through the right leg muscle stress of garage after just one of 4. For storage himself, this ball is critical: before a season, he hit accurate documentation in NBA history together with 272 grains of about three points, if again recognized three points today, his three points this season hit number will exceed 200 mark. So that library will become the sixth in a row has at least two season hit 250 grains of three players, at the same time period, still can have about three points to continuous hit game streak still 54 games - will probably be the warriors team background record.


    "I like everything kevin durant shoes linked to the shooting, " garage once said in the interview, "but with the highest especially in perfect give posture. When your person is in good rhythm, from standing in the feet on a lawn, his hands to complete a shot, all series of joint actions is going to be calm and smooth, like waves. It's a fantastic feeling. ".

    Tag: kyrie irving shoes adidas zx flux curry 4 air jordan shoes kd 11 asics gel kayano 23 lebron 16 Lebron Shoes adidas crazy explosive michael jordan shoes puma fenty adidas eqt adidas deerupt runner kyrie 1 nike mercurial kd 11 shoes adidas iniki hand spinner lebron 14 shoes kyrie 4 nike air max 270 kyrie 4 kyrie irving jersey ultra boost adidas boost nike huarache yeezy boost adidas nmd runner stephen curry jersey nike zoom vaporfly kyrie 4 nike epic react puma fenty pg shoes curry 5 kyrie irving shoes nike kobe shoes ultra boost 3.0 kyrie 4 confetti kyrie 4 halloween adidas porsche shoes lebron james shoes nike air max 270 mizuno running shoes kyire 3 birkenstock sandals nike air max 97 Lebron soldier 11 kyrie 2 shoes Nike lebron soldier 11 Cristiano Ronaldo CR7 lebron 14 curry 5 puma fenty calvin klein underwear yeezy shoes vans sk8 hi Nike Soccer Cleats birkenstock shoes nike air vapormax pegasus 35 nike air presto lebron soldier 10 nike hyperdunk kobe 10 kd shoes kyrie irving jersey curry 5 curry shoes yeezy boost vibram shoes kyrie irving shoes nike vapormax air force 1 puma suede jordan 32 lebron shoes nike sock racer ultra boost adidas nike pg 2 lebron 15 john wall shoes kyrie irving shoes nike free air max 90 nike air more uptempo

  • Enlace al Comentario BKI89yGed Martes, 10 Diciembre 2019 20:39 publicado por BKI89yGed

    Half-court concluded,stephen curry shoes the garage 12 things and 4 rebounds 6 assists, Owen 17 rebounds, 2 assists 1 provides the upper hand slightly. But as knight defeat inside second half, even his / her one-on-one hit his items. In this series, OuWenBen must have certain advantages in counterpoint, much like the finals last year, since the season of Christmas competitions, with their strong individual fortunes turned.


    But today the warriors of the changes, let knights staggered, also let like one-on-one hit Owen curry shoes to get the rhythm. Actually, today usually was clay - Thompson Lord Owen, although Owen hit a dead when in front of him, but clay height reach or up to a point, limits the Owen's episode. In only a few times when confronted with single singled out with his Arsenal, although Owen offers good performance, but also it's hard an extra chance for a knight.


    Full play, scored 28 points 6 rebounds and 10 assists in the Treasury, 6 of 11 three-point kd shoes pictures. 24 points and 3 rebounds, 3 assists, Owen has scored 17 points in the first half, he scored seven points inside second half. Facing the big four on the mighty, and only Michael Owen in one-on-one acquire garage have chances, but today's garage to perform better.

    Tag: kyrie irving shoes pegasus 35 adidas yeezy kobe shoes nike air presto kevin durant shoes adidas ultra boost uncaged adidas iniki kyrie 5 adidas zx flux calvin klein kd shoes nike air more uptempo adidas nmd shoes nike pg 2 nike air max 270 kd 10 kyrie 3 kyrie 4 halloween curry 2 lebron soldier 11 kyrie irving jersey adidas deerupt Cristiano Ronaldo CR7 jordan 32 puma fenty Lebron soldier 11 nike zoom vaporfly elite air max 270 kd 11 kyrie irving jersey air force 1 nike vapormax asics gel kayano 23 ultra boost lebron 15 adidas porsche design lebron james shoes air jordan shoes kyrie irving basketball shoes adidas crazy explosive birkenstock sandals michael jordan shoes kyrie 4 halloween kyrie shoes 3 kevin durant jersey air max 90 nike air max 97 nike kyrie 3 kobe bryant jersey nike mercurial puma fenty slides vans shoes kyrie shoes adidas eqt curry 5 curry 4 shoes hand spinner nike lebron 14 yeezy shoes lebron soldier 10 curry shoes mizuno shoes adidas boost vibram fivefingers nike free adidas yeezy outlet vans sk8 hi stephen curry jersey birkenstock sandals kyrie 4 curry 5 nike hyperdunk curry 5 lebron soldier 10 nike epic react puma fenty Nike CR7 kyrie 2 shoes puma suede paul george shoes Lebron Shoes puma rihanna creepers suede lebron 14 nike sock racer jordan retro

  • Enlace al Comentario cheap viagra usa without prescription Martes, 10 Diciembre 2019 19:55 publicado por cheap viagra usa without prescription

    aside engine generic pills in usa quickly golf else spread [url=http://www.vagragenericaar.org/]generic viagra without a doctor prescription[/url] truly hell virtually regular http://www.vagragenericaar.org/ exactly
    reward http://www.vagragenericaar.org/

  • Enlace al Comentario Ivysef Martes, 10 Diciembre 2019 19:17 publicado por Ivysef

    doxycycline 500mg price sildenafil brand name metformin 1000 colchicine 0.6 mg cost pharmacy price 25 mg allopurinol

  • Enlace al Comentario hejcSmoli Martes, 10 Diciembre 2019 19:06 publicado por hejcSmoli

    buy cialis without prescription [url=https://cilisnoprescription.com/]cialis without a prescription[/url] buy cialis non prescription buy cialis without a prescription buying cialis without a prescription

  • Enlace al Comentario Judysef Martes, 10 Diciembre 2019 14:59 publicado por Judysef

    synthroid brand name price buy valtrex online female viagra propranolol bupropion 225 mg

Deja un comentario

Asegúrate de llenar la información requerida marcada con (*). No está permitido el Código HTML. Tu dirección de correo NO será publicada.